Researcher Profile and Settings

Affiliation

• Faculty of Fisheries Sciences　Marine Bioresource and Environmental Science　Marine Bioresource Science

Job Title

• Professor

Degree

• PhD in Agriculture（1996/03 University of Tokyo）
• MSc in Agriculture（1991/03 University of Tokyo）
• BA in Liberal Arts（1989/03 University of Tokyo）

URL

http://matuisi.main.jp/

Research funding number

• 60250502

ORCID ID

•  https://orcid.org/0000-0003-0884-3523

Researcher ID

• C-7005-2012

J-Global ID

• 200901064747214367

Profile

• Researching on Fish Population Dynamics, Stock assessment, and Cetacean Stranding.

Research Interests

• IUU Fishing   Food Safety   Traceability   Cetaceans   Fisheries Management   Stranding   Stock Assessment   Virtual Population Analysis   Harbour porpoise   エコロケーション   

Research Areas

• Life sciences / Ecology and environmental science / Cetology
• Humanities & social sciences / Agricultural and food economics
• Environmental science/Agricultural science / Biological resource conservation
• Life sciences / Aquaculture

Educational Organization

•  Bachelor's degree program　School of Fisheries Sciences
•  Master's degree program　Graduate School of Global Food Resources
•  Doctoral (PhD) degree program　Graduate School of Global Food Resources

Academic & Professional Experience

• 2020/04 - Today Hokkaido University Faculty of Fisheries Sciences Professor
• 2023/04 - 2025/03 Hokkaido University School of Fisheries Sciences Department of Marine Biology Vice Department Head
• 2023/04 - 2025/03 Hokkaido University Graduate School of Global Food Resources Vice Dean
• 2017/04 - 2020/03 Hokkaido University Global Institution for Collaborative Research and Education, Faculty of Fisheries Sciences Professor
• 2019/08 - 2019/09 Universitas Diponegoro Faculty of Fisheries and Marine Science Visiting Professor
• 2019/03 - 2019/03 Asian Institute of Technology (Thailand) Visiting Professor
• 2018/09 - 2018/09 Brawijaya University Faculty of Fishery and Marine Science Visiting Professor
• 2018/03 - 2018/03 Asian Institute of Technology (Thailand) Visiting Prorfessor
• 2016/08 - 2017/03 Hokkaido University Global Institution for Collaborative Research and Education, Faculty of Fisheries Sciences Associate Professor
• 2007/04 - 2016/07 Hokkaido University Faculty of Fisheries Sciences Associate Professor
• 2014/02 - 2014/03 Asian Institute of Technology(Thailand) Visiting Professor
• 2005/04 - 2007/03 Hokkaido University Faculty of Fisheries Sciences Associate Professor
• 2003/04 - 2005/03 北海道大学 大学院水産科学研究科 助教授
• 2001/04 - 2003/03 北海道大学 大学院水産科学研究科 助教授
• 2002/09 - 2002/12 英国ハル大学 国際漁業研究所 文部省在外研究員
• 1993/04 - 2001/03 Hokkaido University School of Fisheries Sciences

Education

• 1991/04 - 1993/03  The University of Tokyo  Division of Agricultural Sciences  Doctoral Course
• 1989/04 - 1991/03  The University of Tokyo  Division of Agricultural Sciences  Master's Course
• 1985/04 - 1989/03  The University of Tokyo  College of Arts and Sciences
• 1980/04 - 1983/03  私立武蔵高等学校
• 1977/04 - 1980/03  私立武蔵中学校

Association Memberships

• Fish Traceability Research Group   JAPAN DRIFTOLOGICAL SOCIETY   日本セトロジー研究会   日本水産学会   

Research Activities

Published Papers

• A tradeoff evolution between acoustic fat bodies and skull muscles in toothed whales

  Hayate Takeuchi, Takashi Fritz Matsuishi, Takashi Hayakawa

  Gene 901 148167 - 148167 0378-1119 2024/04 [Refereed][Not invited]
  
• A method to quantify social relationships between captive odontocetes based on distances between individuals during synchronous breathing

  Tage K, Tsunokawa M, Ishikawa H, Matsuishi TF

  AACL Bioflux 16 (6) 3227 - 3239 2023/12/30 [Refereed][Not invited]
   

  Quantifying behaviour among captive odontocetes is important for understanding the social structure and managing the captive conditions. Based on frequent interactions, trainers of captive cetaceans establish perceptions of relationships between animals. Distances between individual cetaceans during synchronous breathing can be used to express social relationships among odontocetes. If the perceptions of trainers can be visualised, these diagrams represent graphically a useful tool to improve animal care. The study aimed to both quantify social relationships among captive odontocetes, and to visualise trainer perceptions, using the distance between individuals during synchronous breathing as a metric of odontocetes social cohesion. Data were collected from three pools at three facilities housing common bottlenose dolphins or harbour porpoises. Individuals distance for dyads (a pair of cetaceans in an interactional situation) were calculated using a combination of video recordings, visual observations, and body measurements. Proximity relationships between individuals in each pool were visualised using multidimensional scaling analysis (MDS). Mathematically predicted relationships among captive odontocetes were consistent with trainer perceptions of social relationships. We demonstrated that MDS can be used to visualise social relationships among captive odontocetes, and that these visualisations can be used to assist trainers and animal management to improve captivity conditions. Key Words: dolphin proximity, multidimensional scaling analysis, synchronous breathing.
• Analysis of microplastics in the intestines of stranded cetaceans

  Yang L, Matsuda A. T, Kawaguchi T, Fortunato H, Matsuishi T. F

  AACL Bioflux 16 (5) 2746 - 2756 2023/10/30 [Refereed][Not invited]
  
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• Northernmost record of the Ginkgo-toothed beaked whale (Mesoplodon ginkgodens)

  Wojtek Bachara, KURODA Mika, NISHIDA Shin, ISHIKAWA Hajime, MATSUISHI Takashi Fritz

  Aquatic Mammals 49 (4) 356 - 365 2023/07/15 [Refereed][Not invited]
  
• Estimation of the spatiotemporal distribution of fish and fishing grounds from surveillance information using machine learning: The case of short mackerel (Rastrelliger brachysoma) in the Andaman Sea, Thailand

  Chonlada Meeanan, Pavarot Noranarttragoon, Piyachoke Sinanun, Yuki Takahashi, Methee Kaewnern, Takashi Fritz Matsuishi

  Regional Studies in Marine Science 62 102914  2352-4855 2023/03 [Refereed][Not invited]
   

  Rapid and accurate data gathering on fish catches and the geographical distribution of fishing activitiesis essential in fish stock assessments and fisheries management. Surveillance systems like the VesselMonitoring System (VMS) have become popular globally, providing accurate data on fishing activitiesand fish abundance in near real-time. Our study demonstrates a procedure to find the best methodin machine learning algorithms for detecting fishing operations from surveillance data. VMS dataof 3,237 trips conducted by 91 purse seiners targeting short mackerel (Rastrelliger brachysoma) inThai waters of the Andaman Sea during 2020 were used for the study. Twenty-five spatiotemporal,environmental, and fisheries-related parameters were investigated as predictors to detect and map thefishing activity. Eight algorithms were used to compare the model performance using cross-validation.The total catch per trip was reallocated to the predicted fishing locations of the trip from the bestalgorithms to depict the fishing ground. The results show that operation time and vessel speed areessential elements for determining the fishing operation of purse seiners. The most-relevant predictorsare the calculated speed, operation time, and instantaneous speed. The Random Forest (RF) algorithmperformed the best, with 86% accuracy, and therefore was used as the final model to detect thefishing operations. However, all reallocation approaches performed similarly well in depicting fishdistribution. The allocation of catch data equally to the fishing position is recommended since it is themost straightforward technique. In contrast, reallocation catch using the RF algorithm prediction ratiofor visualising the CPUE distribution achieved the best performance (with a slope of 1) compared withthe training data. This study provides the first decent procedures for using surveillance informationto detect and identify the prospective fishing operation of purse seiners—an approach that allowsfor a better understanding of short mackerel distribution. The proposed procedures should help withtime–area-based management of intensively exploited migratory fish species, which requires rapid andaccurate information.
• Interactions between fish and angler behaviour affect species-specific catchability of sympatric native charr and two introduced trout

  YOSHIYAMA Taku, TSUBOI Jun-ichi, MATSUISHI Takashi Fritz

  Fisheries Research 259 106547  2023/03 [Refereed][Not invited]
  
• Notes on stomach contents of pygmy and dwarf sperm whales (Kogia spp.) from around Japan

  Matsuda AyakaT, Matsuishi Takashi F, Noto Fumika, AmanoMasao, Tajima Yuko, YamadaTadasu K

  Advances in Marine Biology 96 1 - 23 2023 [Refereed][Invited]
  
• Spatial Diversity of Small Pelagic Fisheries in Bali Strait, Indonesia

  Ledhyane Ika Harlyan, Farisa Mardiana Rahma, Denny Wijaya Kusuma, Abu Bakar Sambah, Takashi Fritz Matsuishi, Supapong Pattarapongpan

  Journal of Fisheries and Environment 46 (3) 198 - 209 2022/12 [Refereed][Not invited]
  
• Assessing the costs of GHG emissions of multi-product agricultural systems in Vietnam

  Aito Yamamoto, Thi Kim Uyen Huynh, Yoko Saito, Takashi Fritz Matsuishi

  Scientific Reports 12 (1) 18172  2022/10/28 [Refereed][Not invited]
   

  Besides a vital sector of the economy, agriculture is a primary source of greenhouse gas (GHG) emissions. The present paper investigates the impact of carbon tax policy on Vietnamese agriculture by focusing on multi-product systems such as rice, livestock, and aquaculture, traditionally called the Vuon (Garden)–Ao (Pond)–Chuong (livestock pen) system (VAC). In it, farmers use garden, pond, and pen by-products as fertilizer and feed. We use shadow prices and Morishima substitution elasticities as greenhouse gas emissions indicators, estimated with directional output distance function. Farmers in the Mekong Delta region are found to be technologically less efficient than in other regions of Vietnam, though the shadow prices of GHG emissions are lower there too. This indicates that farmers in the Mekong Delta, generally concentrating either on livestock or aquaculture, have greater potential for reducing GHG emissions by way of improvements in technical efficiency than do those in other regions. However, Morishima elasticity estimates show that policy impacts diminish more quickly in the Mekong than elswhere. We suggest the Vietnamese government encourage Mekong Delta farmers to employ technologically more efficient methods or shift to more balanced farming to reduce the shadow price of GHG emissions, encouraging more efficient emissions reduction.
• Microplastic in cultured oysters from different coastal areas of Japan

  Liu Yang, Masahiro Nakaoka, Takashi Matsuishi, Toshikazu Kawaguchi, Helena Fortunato

  Journal of Marine Science: Research & Development 12: 360  2022/10/03 [Refereed][Not invited]
  
• Stock status of whitespotted bambooshark Chiloscyllium plagiosum (Anonymous [Bennett], 1830) in Sabah, Malaysia, using yield-per-recruit and spawning-per-recruit analyses

  Supapong Pattarapongpan, Sukchai Arnupapboon, Abdul Harris Hilmi Bin Ahmad Arshad, Matsuishi Takashi Fritz

  Asian Fisheries Science 35 117 - 128 2022/06 [Refereed][Not invited]
  
• Diphyllobothrium stemmacephalum (Cestoda: Diphyllobothriidae) found from a harbor porpoise in northern Japan, with comments on a geographical gap with human infection cases in southern Japan

  KATAHIRA Hirotaka, MATSUDA T. Ayaka, MAEDA Saki, YOSHIDA Erika, BANZAI Azusa, MATSUISHI Takashi F

  Parasitology International 87 102487 - 102487 1383-5769 2022/04 [Refereed][Not invited]
  
• Effectiveness of adaptive real-time closures for managing migratory species in data-limited multispecies fisheries

  Munehara Masami, Methee Kaewnern, Pavarot Noranarttragoon, Matsuishi Takashi Fritz

  Asian Fisheries Science 34 (4) 365 - 372 2021/12/31 [Refereed][Not invited]
  
• The stomach content analysis of whales in Alor and Lamalera Islands, Savu Sea, Indonesia

  Delianis Pringgenies, Agus Hartoko, Jahved Ferianto Maro, Takashi Matsuishi

  AACL Bioflux 14 (5) 3068 - 3075 2021/12 [Refereed][Not invited]
  
• Stomach contents of pygmy sperm whales (Kogia breviceps) stranded in Hokkaido, Japan

  MATSUDA T. Ayaka, MATSUISHI Takashi F

  Japan Cetology (31) 5 - 9 2021/11 [Refereed][Not invited]
  
• Yield per recruit and spawning per recruit of three stocks of brownbanded bamboo shark (Chiloscyllium punctatum) in Southeast Asia

  Supapong Pattarapongpan, Sukchai Arnupapboon, Ahmad Ali, Matsuishi Takashi Fritz

  Journal of Fisheries and Environment 45 (3) 14 - 27 2021/11/01 [Refereed][Not invited]
   

  The brownbanded bamboo shark (Chiloscyllium punctatum) is a benthic shark species distributed in Southeast Asia. The species has been listed as “Near Threatened” by the IUCN, but only based on indirect information. In this study, yield per recruit (YPR) and spawning per recruit (SPR) analyses were conducted to determine the current stock status. Data were obtained from three major landing sites of this species: Sihanoukville, Cambodia (Sv); Songkhla, Thailand (Sk); and Kota Kinabalu, Malaysia (KK). The von Bertalanffy growth curve parameters L∞ and K were estimated as 81.62 cm and 0.37 year-1 for Sv, 88.09 cm and 0.51 year-1 for Sk, and 86.48 cm and 0.40 year-1 for KK. The YPR and SPR analyses showed that the Fcurr, F0.1, and F30% were 0.29, 0.26, and 0.21 year-1 for Sv; 0.39, 0.23, and 0.23 year-1 for Sk; and 0.06, 0.24, and 0.24 year-1 for KK. The results indicate that the fishery for brownbanded bamboo sharks in KK is efficient and sustainable, but in Sv and Sk, harvest is nearing inefficiency, and fishing mortality cannot sustainably be increased from the current level. Some fisheries management measures are recommended for the sustainability of these stocks.
• Simulations of fixed closure and real-time closure to manage migratory fish species for data-limited fisheries

  MUNEHARA Masami, Methee Kaewnern, Pavarot Noranarttragoon, MATSUISHI Takashi Fritz

  Ocean and Coastal Management 211 105736  2021/10/01 [Refereed][Not invited]
  
• Temporal variation of grouper diversity and distribution on the continental shelf of Sri Lanka: a revisit after four decades

  A. A. S. H. Athukoorala, Ram C. Bhujel, Jens-Otto Krakstad, Takuji W. Tsusaka, Takashi Fritz Matsuishi

  Fisheries Research 242 106017  2021/10 [Refereed][Not invited]
  
• Species specific relationship between angler catch and their satisfaction among anglers targeting salmonid fishes in Hokkaido lakes, Japan

  Yoshiyama Taku, Tsuboi Jun-ichi, Matsuishi Takashi Fritz

  Nippon Suisan Gakkaishi 87 (5) 461 - 472 0021-5392 2021/08 [Refereed][Not invited]
   

  Recreational angling is a dominant use of inland fish resources. Since recreational angling is a leisure-based activity, the stock manager must meet two objectives: 1) maintain fish stocks, and 2) maximize angler satisfaction with limited catch. To achieve these goals, it is important to evaluate the relationship between angler satisfaction and catch in order to construct a management strategy, because catch is one of the most important connections between fish stock and angler satisfaction. In this study, the relationships of four angling target species which have different biological and social traits were investigated. The results of a questionnaire survey of 639 anglers in total revealed four types of orientation: 1) the catch of endemic target fish strongly enhances angler satisfaction, 2) the existence of endemic fish increases angler satisfaction for all anglers, 3) fish size has a greater influence than number of fish for anglers who target fish that grow larger (i.e. trophy anglers), and 4) anglers desire more fish when the target fish has higher value as a food (i.e. consumption orientation). For the sustainable use of fish stocks for recreational angling, not only the biological traits of stocks but also anglers' orientation toward catch should be considered.
• How much do farmers expect to implement for traceability? Evidence from double-bound choices experiment of Vietnamese shrimp

  Khuu Thi Phuong Dong, Nguyen Thi Ngoc Hoa, Saito Yoko, Matsuishi Takashi Fritz

  Asian Fisheries Science Journal 34 (1) 82 - 92 0116-6514 2021/03/31 [Refereed][Not invited]
   

  Traceability is considered the most important requirement for shrimp products exported to global markets. However, implementing traceability in shrimp-exporting countries is challenging because of limited production at the local supply chain and lack of financial welfare awareness. This study aims to investigate the expected farm-gate price for traceability implementation using a double-bound dichotomous choice experiment. The censored regression model is used to estimate the factors influencing the anticipated farm-gate price of shrimp farmers. The survey was conducted in Ca Mau Province, Vietnam, by interviewing 71 Penaeus monodon Fabricius, 1798, and 43 Penaeus vannamei Boone, 1931, farmers. To implement traceability, P. monodon farmers estimated the farm-gate price at 10.17 USD.kg-1 , while P. vannamei farmers expected 6.18 USD.kg-1 . Application of international quality assurance certifications, willingness to implement traceability, land used, culture methods, shrimp species, current farm-gate price, and variable costs affected the expected farm-gate price. The attractive anticipated farm-gate price compensated for the negative influence of applying international quality assurance certifications, indicating that the farmers were willing to implement traceability. This suggests that the application of certifications increased the ability to implement traceability in the shrimp supply chain. The attractive farm-gate price for certified shrimp products would enhance their willingness to implement the traceability of shrimp products.
• Regional variation in fish species in the coastal zones of Sri Lanka

  A. A. Sujeewa Hemanthi Athukoorala, Ram C. Bhuje, Jens-Otto Krakstad, Takashi Fritz Matsuishi

  Regional Studies in Marine Science 44 101755  2021/03/20 [Refereed][Not invited]
  
• Growth and reproduction in the Western Pacific subspecies of the harbour porpoise (Phocoena phocoena) inhabiting Hokkaido, Japan

  Matsui Natsuki, Sasaki Motoki, Kobayashi Mari, Shindo Junji, Matsuishi Takashi Fritz

  Aquatic Mammals 47 (2) 185 - 195 0167-5427 2021/03/12 [Refereed][Not invited]
   

  AbstractGrowth and maturity parameters of harbour porpoises (Phocoena phocoena) around Japanese waters were summarized using samples and information from 214 individuals stranded and bycaught along the coast of Hokkaido from 2009 to 2019. We estimated ages from dental growth layer groups (GLGs), made more accurate by independently determining the mean date when layers are established. Gompertz growth curves were fitted, predicting asymptotic lengths of 136.9 cm for males and 158.5 cm for females. Sexual dimorphism was present from 3 years of age, with females larger than males as reported in other subpopulations. Length at sexual maturity (LSM) and age at sexual maturity (ASM) were estimated as 143.1 cm and 7.7 years, respectively, for males, and 154.4 cm and 7.3 years, respectively, for females. In comparison with other studies that examined stranded and bycaught harbour porpoises in other locations, foetuses and neonates comprised a very small proportion of samples. Differences from other populations in the age distributions of pregnant females also indicated that the coastal area of Hokkaido is not used as an area for parturition. This study uses data from the past 10 years to provide basic information on growth and reproduction of animals in and around Hokkaido, which is part of the North Pacific subpopulation of harbour porpoises.
• Gastric ulceration caused by Anisakis simplex sensu stricto in a harbor porpoise from the Western Pacific stock, with a molecular approach

  Katahira Hirotaka, Matsuda Ayaka, Banzai Azusa, Eguchi Yuya, Matsuishi Takashi Fritz

  Parasitology International 83 102327 - 102327 1383-5769 2021/03/09 [Refereed][Not invited]
  
• Feasibility of a single-species quota system for management of the Malaysian multispecies purse-seine fishery

  Ledhyane Ika Harlyan, Matsuishi Takashi Fritz, Mohammad Faisal, Md Saleh

  Fisheries Management and Ecology 28 (2) 126 - 137 2021/03/05 [Refereed][Not invited]
   

  Malaysian fisheries employ multiple measures to improve management; however, not all are well-suited to the multispecies fisheries. As part of a pilot project, an individual quota system was recently introduced for the purse-seine fishery off the East Coast of Peninsular Malaysia (ECPM), but no assessment of this particular measure nor the feasibly of its implementation has been confirmed. Therefore, this study analysed patterns of purse-seine fishing spatially and temporally, by collecting catch composition data per landing and its fishing ground within three period fishery surveys during August 2017 – September 2018 at six different landing. Similarity and cluster analysis were taken by examining species composition and diversity, to determine the feasibility of implementing a single-species quota system in this multispecies fishery. Some overlapped of indices results and minor difference in catch composition were found due to changes in spatial and temporal fishing activities. However, no specific spatial or temporal patterns were discernible as structuring the fishing grounds that were used by purse-seiners. The absence of patterns, using the available data, might be attributable to huge species aggregations and widely distributed and homogenously-mixed fish stocks. Thus, it is likely impractical to manage species individually in such a multispecies fishery.
• Effects of application of quality assurances certification at farm level on the probability to implement traceability for agricultural products towards global markets: evidences from cultured-shrimp in Mekong Delta, Vietnam (Ảnh hưởng của áp dụng chứng nhận đảm bảo chất lượng quốc tế tại nông hộ đến khả năng truy xuất nguồn gốc của nông sản xuất khẩu: trường hợp của sản phẩm tôm tại Đồng bằng sông Cửu Long)

  Nguyen Minh Duc, Khuu Thi Phuong Dong, Nguyen Thi Ngoc Hoa, Matsuishi Takashi

  Science & Technology Development Journal – Economics - Law and Management 5 (1) 1314 - 1324 2021/02/21 [Refereed][Not invited]
  
• Foraging activity of harbour porpoises around a bottom-gillnet in a coastal fishing ground, under the risk of bycatch

  Maeda Saki, Sakurai Kenji, Akamatsu Tomonari, Matsuda Ayaka, Yamamura Orio, Kobayashi Mari, Matsuishi Takashi Fritz

  PLOS ONE 16 (2) e0246838  1932-6203 2021/02/11 [Refereed][Not invited]
   

  Bycatch of harbour porpoises (Phocoena phocoena) by gillnets is a recognised threat to populations. To develop effective mitigation measures, understanding the mechanics of bycatch is essential. Previous studies in experimental conditions suggested foraging activity is an important factor influencing porpoises' reaction to gillnets. We acoustically observed the behaviour of wild harbour porpoises around a bottom-gillnet set-up in a commercial fishing ground, especially foraging activity. Passive acoustic event recorders (A-tags) were fixed to the ends of the gillnet, and recorded for 1 392 hours. Although harbour porpoises frequently and repeatedly appeared around the net each day, incidental bycatch occurred only three times during the observations. The stomach contents of two individuals contained mainly Ammodytes sp., which were observable around the bottom-gillnet but not targeted by the fishery. A total of 276 foraging incidents were acoustically detected, and 78.2% of the foraging activity was in the bottom layer (deeper than 25 m). Porpoises appeared around the net with more frequency on the day of a bycatch incident than on the days without bycatch. These results suggest that the harbour porpoises appeared around the bottom-gillnet to forage on fish distributed in the fishing ground, but not captured by this bottom-gillnet. Thus, porpoises face the risk of becoming entangled when foraging near a gillnet, with the probability of bycatch simply increasing with the length of time spent near the net. Bycatch mitigation measures are discussed.
• Does application of quality assurance certification by shrimp farmers enhance feasibility of implementing traceability along the supply chain? Evidence from Vietnam

  Khuu Thi Phuong Dong, Matsushi Takashi Fritz, Nguyen Minh Duc, Nguyen Thi Ngoc Hoa, Saito Yoko, Tong Yen Dan

  Journal of Applied Aquaculture Online 1 - 23 1045-4438 2021/01/05 [Refereed][Not invited]
  
• Diet of mass-stranded striped dolphins (Stenella coeruleoalba) in Southern Japan (East China Sea)

  Matsuda Ayaka, Yamada Tadasu K, Tajima Yuko, Kunisue Tatsuya, Amano Masao, Matsuishi Takashi Fritz

  Mammal Study 46 (1) 1 - 8 1343-4152 2020/12/21 [Refereed][Not invited]
   

  Abstract. Striped dolphins (Stenella coeruleoalba) mass-stranded on 26 April 2013 at Minamisatsuma, Kagoshima Prefecture, in southern Japan (East China Sea). The diet of the mass-stranded striped dolphins was investigated to reveal their foraging pattern through analyses of the stomach contents and stable isotopes in muscle. Of 26 stomachs sampled, 25 contained hard parts of prey animals; no fleshy remains were found in any of the stomachs. The identified prey species represented four cephalopod families: Loliginidae, Onychoteuthidae, Histioteuthidae, and Ommastrephidae. Among these, ommastrephids had the highest abundance (42.4%) and frequency of occurrence (69.2%). A chi-square test revealed that the prey species consumed did not significantly differ between male and female dolphins, although deeper-water squids (Onychoteuthidae and Histioteuthidae) appeared only in the stomachs of females. The values of δ13C ranged from -20.4 to -17.0‰ (mean ± SD: -18.2 ± 0.9‰), and values of δ15N ranged from 10.2 to 12.5‰ (10.8 ± 0.5‰), with a significant difference in δ15N between sexes (P < 0.05).
• The stranding records in Matsumae, Hokkaido during 1992-2002

  Matsuda Ayaka T, Matsuishi Takashi Fritz, Ishikawa Hajime, Yamada Tadasu K

  Japan Cetology (30) 7 - 10 2020/10/31 [Refereed][Not invited]
   

  We received the whale stranding records from Matsumae-cho, Hokkaido, for the period 1992-2002 in 2013. Species and sex were identified as far as possible from the photographs provided. As a result of the identification, 11 individuals (SNH13901 to SNH13911) were obtained in 11 cases: nine individuals of Stejneger's beaked whales, one Baird's beaked whale, and one minke whale.
• Determinants of echolocation click frequency characteristics in small toothed whales: recent advances from anatomical information

  Kuroda Mika, Miki Nobuhiro, Matsuishi Takashi Fritz

  Mammal Reviews 50 (4) 413 - 425 2020/09/30 [Refereed][Not invited]
   

  The pulse‐like clicking sounds made by odontocetes for echolocation (biosonar) can be roughly classified by their frequency characteristics into narrow‐band high‐frequency (NBHF) clicks with a sharp peak at around 130 kHz and wide‐band (WB) clicks with a moderate peak at 30–100 kHz. Structural differences in the sound‐producing organs between NBHF species and WB species have not been comprehensively discussed, nor has the formation of NBHF and WB clicks. A review of the sound‐producing organs, including the latest findings, could lead to a new hypothesis about the sound production mechanisms. In the current review, data on echolocation click characteristics and on the anatomical structure of the sound‐producing organs were compared in 33 species (14 NBHF species and 19 WB species). We review interspecific information on the characteristics of click frequencies and data from computed tomography scans and morphology of the sound‐producing organs, accumulated in conventional studies. The morphology of several characteristic structures, such as the melon, the dense connective tissue over the melon (the ‘porpoise capsule’), and the vestibular sacs, was compared interspecifically. Interspecific comparisons suggest that the presence or absence of the porpoise capsule is unlikely to affect echolocation frequency. Folded structures in the vestibular sacs, features that have been overlooked until now, are present in most species with NBHF sound production and not in WB species; the vestibular sacs are therefore likely to be important in determining echolocation click frequency characteristics. The acoustical properties of the shape of the melon and vestibular sacs are important topics for future investigations about the relationship between anatomical structure and sound‐producing mechanisms for echolocation clicks.
• Composition Analysis of the Colostrum and Attempted Hand-rearingof a Neglected Harbor Porpoise (Phocoena phocoena)

  Matsushiro M, Tsunokawa M, Matsuishi T, Kooriyama T

  Japanese Journal of Zoo and Wildlife Medicine 25 (2) 81 - 89 1342-6133 2020/06/23 [Refereed][Not invited]
   

  The harbor porpoise is a marine mammal rarely seen in aquariums. The ecology of this species is not well known, and captive breeding is difficult without essential information such as milk composition, amount consumed and frequency nursed per day, and lactation period. At the Otaru Aquarium in Japan, several deliveries of harbor porpoise offspring have occurred, but the calves have not survived. In the present study, we analyzed the colostrum of a harbor porpoise and attempted to hand-rear a calf using artificial milk after the mother denied nursing. The crude fat and crude protein contents of the colostrum were relatively high compared to values for other odontocetes. The present information will be helpful for future efforts to hand-rear harbor porpoises.
• Morphology and Molecular Biology of Benthic Java Sea Shark Ray Rhina ancylostoma Bloch and Scheider 1801 (Elasmobranchia: Rhinidae)

  Hartoko A, Pringgenies D, Anggelina AC, Matsuishi T

  Annual Research & Review in Biology 35 (4) 19 - 31 2020/05/23 [Refereed][Not invited]
   

  Aims: Morphology and molecular biology of a rare shark-rays Rhina ancylostoma caught from Java sea.Indonesia. Study Design: Morphology, morphometry and DNA analysis of the fish specimen. Place and Duration of Study: Sample wascollected from fish auction hall at north Java, specimen now stored in Lab of Ichtiology. Department of Fisheries. Faculty of Fisheries and Marine Science. Diponegoro University, between March to December 2019. Methodology: DNA extraction, amplification and molecular identification of fish sample.Yield of DNA supernatant transferred in an eppendeorf tube and stored in 4°C for further process. PCR amplification. Part of Mithocondrial DNA COI (Cytochrome Oxidase subunit-I) gen was amplified using Polymerase Chain Reaction (PCR) method. Then matched up with GenBank database at NCBI using Basic Local Alignment Search Tool (BLAST) analysis. Philogenetic tree was set using Neighbor-Joining method, Kimura-2 parameter model and 1,000 bootstrap replication. Some sequence from NCBI GenBank were inputted into philogenetic tree as comparison. Results: Rhina ancylostoma as one of demersal shark rays catch from tropical shallow Java sea. Range of Total Length 73 – 200 cm and dominant Total Length catch 125 cm. Morphologyis characterised with three lines of spine thorn on the head, morphometry characteriswide of head to TL ratio 0.77. DNA analysis had confirmed the specimen of AH2 as Rhina ancylostoma based on homological match up of sequence of Gen Bank database with reference accesion number KU721837.1 with length sequence of 665 bpand identical similarity of 99.84% for specimen Accession number LC 505461. Conclusion: Rhina ancylostoma as one of demersal shark rays catch from Java sea. Range Total Length (TL) of catch 73 – 200 cm and dominant TL catch range 101 – 125 cm. Morphologically character of wide head ratio with three lines of spine thorn on the head. Nearest genetic distance of 0.02 to Rhincobatushorkelii and 0.017 to R. australiae. Longest genetic distance of 0.243 to Potamotrygon motoro.
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• Diet of harbour porpoises (Phocoena phocoena) Around Hokkaido, Japan

  Matsui, N., Matsuda, A., Matsuishi, T.F.

  Aquatic Mammals 46 (2) 183 - 190 2020/03/09 [Refereed][Not invited]
  
• Serologic survey of Brucella infection in cetaceans inhabiting along the coast of Japan

  Ohishi K, Taru H, Iwao H, Maruyama T, Amano M, Nakamatsu K, Miyazaki N, Tajima Y, Yamada TK, Matsuda A, Ochiai M, Matsuishi TF

  Journal of Veterinary Medical Science 公益社団法人 日本獣医学会 82 (1) 43 - 46 0916-7250 2020 [Refereed][Not invited]
   

  A serologic investigation of Brucella infection was performed in 7 species of cetaceans inhabiting along the coast of Japan. A total of 32 serum samples were examined by enzyme-linked immunosorbent assay (ELISA) using Brucella abortus and B. canis antigens. One serum sample from five melon-headed whales (Peponocephala electra) was positive for B. abortus. No serum sample showed positive for B. canis. The ELISA-positive melon-headed whale serum demonstrated a strong band appearance only against B. abortus antigens in Western blot analysis. Many detected bands were discrete, while some of them had a smeared appearance. The present results indicate that Brucella infection occurred in melon-headed whale population and the bacterial antigenicity is more similar to that of B. abortus than B. canis.

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• Description of a new species of beaked whale (Berardius) found in the North Pacific

  Yamada, T.K., Kitamura, S., Abe, S., Tajima, Y., Matsuda, A., Mead, J.G., Matsuishi, T.F.

  Scientific Reports 9 (1) 1 - 14 2019/08 [Refereed][Not invited]
   

  Two types of Berardius are recognised by local whalers in Hokkaido, Japan. The first is the ordinary Baird’s beaked whale, B. bairdii, whereas the other is much smaller and entirely black. Previous molecular phylogenetic analyses revealed that the black type is one recognisable taxonomic unit within the Berardius clade but is distinct from the two known Berardius species. To determine the characteristics of the black type, we summarised external morphology and skull osteometric data obtained from four individuals, which included three individuals from Hokkaido and one additional individual from the United States National Museum of Natural History collection. The whales differed from all of their congeners by having the following unique characters: a substantially smaller body size of physically mature individuals, proportionately shorter beak, darker body colour with scarce healed scars that were probably made by ramming each other, and a faint white tip of the beak. Thus, we conclude that the whales are a third Berardius species that is described herein as Berardius minimus sp. nov.
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• The effects of visual impediment on the approaching behavior of harbor porpoise, Phocoena phocoena

  Maezawa T, Matsuishi T, Ito K, Kaji S, Tsunokawa M, Kawahara JI

  Mammal Study 44 (3) 205 - 213 1343-4152 2019/07 [Refereed][Not invited]
   

  Studies on odontocetes (e.g., porpoises) have revealed that these animals may adaptively use vision. The present study examined the contributions of vision to the approaching behavior of the harbor porpoise (Phocoena phocoena). When a porpoise approached a target, the time-to-contact perceived by the animal and its trajectory with a visual impediment condition were compared with those in the control (no impediment) condition. The results suggested that approaching behavior to a stationary target was guided by the animal’s evaluation of time-to-contact (tau), maintaining the time derivative of t (tau dot) at a constant value. A porpoise with visual deprivation exhibited grater tau dot value and a longer evaluation time before contact than a porpoise that was not blindfolded in the task of reaching for the target. Furthermore, the porpoise with a visual impediment changed its swimming trajectory toward a target less than the control, which appeared to adaptively adjust its approaching trajectory. These findings imply that the use of vision aided echolocation and enables precise control and alteration of the trajectory during the approach. The present study has implications for adaptive use of vision during approaching behavior in the harbor porpoise.
• 小型ハクジラ類の発音器官におけるクリックスの周波数決定機構に関する音響学的検討

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  日本音響学会聴覚研究会資料 49 (2) 81 - 84 2019/05 [Not refereed][Not invited]
  
• Surveillance of amyloidosis in stranded and bycaught cetaceans off Hokkaido, Japan

  NAKAGUN S, WATANABE K, MATSUISHI T, KOBAYASHI M, KOBAYASHI Y

  Journal of Veterinary Medical Science 81 (6) 897 - 902 0916-7250 2019/04/17 [Refereed][Not invited]
   

  Systemic amyloidosis is rarely reported among cetaceans, and a surveillance dedicated for its occurrence across a certain geographic location has not been reported. Between 2013 and 2018, comprehensive gross and histopathologic examinations were conducted on 54 animals comprising 11 species of stranded and bycaught cetaceans in Hokkaido, Japan. Systemic amyloidosis was diagnosed in 2 out of 3 Stejneger's beaked whales (Mesoplodon stejnegeri), through Congo red staining and immunohistochemistry for amyloid A. The kidney and gastrointestinal tract had the largest amounts of amyloid deposits, representing a previously undescribed organ distribution in the species. The current study demonstrates the possibility of Stejneger's beaked whales being prone to the development of systemic amyloidosis, and highlights the need for further investigations.
• Are consumers willing to pay more for traceability? Evidence from an auction experiment of Vietnamese pork

  Thi Phuong Dong Khuu, Yoko Saito, Naoki Tojo, Phuong Duy Nguyen, Thi Ngoc, Hoa Nguyen, Matsuishi Takashi Fritz

  International Journal of Food and Agricultural Economics 7 (2) 127 - 140 2147-8988 2019/04 [Refereed][Not invited]
   

  This study aims to conduct the consumer’s willingness to pay (WTP) for traceable pork products by using the auction experiments methods, estimate the factors affecting to the WTP and identify the demand for specific information in traceability systems from information of consumers in Vietnam. The results indicated that, the WTP for traceable pork products of consumers is higher than 24%, comparing to the non-traceable pork products. The frequency of pork consumption, gender, age, education, health self-report and consumer’s attitude from risk of unsafe pork products were the influencing factors to the consumer’s WTP for traceable pork. The necessary information of traceability, suggested by consumers, included: information of additives included in the purchased pork, place of origin, expiration date and quality certificate.
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• Pressure–State–Response of traceability implementation in seafood-exporting countries: Evidence from Vietnamese shrimp products

  Thi Phuong, Dong Khuu, Saito Y, Hoa NTN, Dan TY, Matsuishi T

  Aquaculture International 27 (5) 1209 - 1229 0967-6120 2019/04 [Refereed][Not invited]
   

  Shrimp products play a vital role in the international trade of fisheries products. The main suppliers for shrimp products are developing nations such as Vietnam, Thailand, Bangladesh and other countries in Southeast Asia. Among them, Vietnam is one of the largest exporters of shrimp products, and developed countries, especially the United States, Europe and Japan, are key importers of shrimp in the global market. An increase in the demand for shrimp products has led to the development of traceability regulations in developed countries. In this study, Pressure–State–Response (PSR) concepts are applied to evaluate the implementation responses of traceability regulations by exporting countries to meet the mandatory requirements of global markets. The evaluation was based on the prepared questions that were developed to allow comparison of specified indicators in the traceability regulations of importing countries and those of Vietnam. The examination showed that importing countries have introduced stringent traceability regulations via legislation and quality assurance practices. Regarding measures taken by exporting countries, Vietnam has introduced traceability regulations for both shrimp and other seafood products. Thus, Vietnamese regulations were found to satisfy the regulations of importing countries. However, the implementation of these regulations has faced a number of challenges, largely because of complicated of distribution channels, small-scale production, price discrimination and a lack capital to apply for international certificates.
• Validation of a feedback harvest control rule in data-limited conditions for managing multispecies fisheries

  Harlyan, L.I., Wu, D., Kinashi, R., Kaewnern, M., Matsuishi, T.

  Canadian Journal of Fisheries and Aquatic Sciences 76 (10) 1885 - 1893 2019 [Refereed][Not invited]
   

  Harvest control rules (HCRs) for sustainable fishery management have been developed for data-limited fish species for which stock assessments cannot be conducted. However, HCRs have largely not considered mixed-species catches, as when fishing-effort data are widely pooled for numerous minor species in a multispecies fishery. Presently, a feedback HCR has been successfully applied in Japanese fisheries management. By combining management strategy evaluation with a simulation to generate mixed-species data from a multispecies fishery that assume constant catchability (q) among species, the performance of this feedback HCR was evaluated and then compared with its performance using species-specific data. In most cases, the biomass was controlled over that needed for maximum sustainable yield (MSY) and the fishing effort was under the fishing mortality consistent with achieving MSY (FMSY). However, for slow-growing species, the biomass might become lower than what is required to remain capable of producing MSY, even though fishing effort was controlled under FMSY. The results show that the feedback HCR is appropriate for multispecies fisheries management where only mixed-species data are available but with special monitoring for slow-growing minor species.
• Different profiles of naturally produced and anthropogenic organohalogens in the livers of cetaceans from the Sea of Japan and the North Pacific Ocean

  Fujii Y, Kato Y, Sakamoto K, Matsuishi T, Harada K, Koizumi A, Kimura O, Endo T, Haraguchi K

  Marine Pollution Bulletin 136 230 - 242 2018/11 [Refereed][Not invited]
   

  Species-dependent profiles and regional trends in naturally produced halogenated bipyrroles (Br4Cl2-DBP and Cl7-MBP), methoxylated tetrabromodiphenyl ethers (MeO-BDEs), and anthropogenic erfluoroalkyl carboxylic acids (PFCAs) were investigated in the livers of 14 cetaceans from the Sea of Japan and the North Pacific Ocean. Levels of Br4Cl2-DBP were high in cetaceans from the North Pacific (up to 4,900 ng/g-wet), whereas Cl7-MBP was abundant in cetaceans from the Sea of Japan (up to 3,900 ng/g-wet), indicating different sources for the bipyrroles. PFCAs were dominated by perfluoroundecanoic acid and perfluorotridecanoic acid (up to 540 ng/g-wet) in cetaceans from the Sea of Japan, reflecting a potential source of long-chain PFCAs in this region. Concentrations of 6- MeO-BDE47 were widely distributed (up to 190 ng/g-wet) in cetaceans in both oceans. These natural products could serve as a tracer or marker to determine temporal or regional trends in anthropogenic PFCAs and/or newer contaminants in cetaceans.
• In vitro cytotoxicity assessments of persistent organic pollutants using cetacean fibroblasts

  M. Ochiai, N. Kurihara, A. Matsuda, S. Nakagun, A. Shiozaki, A. Nakata, T. Matsuishi, T. Kunisue, H. Iwata

  Toxicology Letters 295 S116 - S116 0378-4274 2018/10 [Refereed]
  
• Morphological study on the tongue of a Neonate Minke whale (Balaenoptera acutorostrata)

  Shindo J, Sekizawa K, Okada A, Matsui N, Matsuida A, Matsuishi T

  Japanese Journal of Zoo and Wildlife Medicine 23 (3) 77 - 82 1342-6133 2018/09/28 [Refereed][Not invited]
   

  The morphological characteristic of the tongue of a Neonate Minke whale (Balaenoptera acutorostrata) was observed on gross and with scanning electron microscopy. The tongue was oval shaped, and had the marginal papillae of various forms on the both sides of the anterior part. Three types of papillae (dome-, short cylindrical- and club-shape) were found on the surface of the tongue. Dome-shape papillae were distributed on the anterior surface of the tongue, and the short cylindrical- and club-shape papillae were distributed on the several grooves of the posterior surface of tongue. The connective tissue cores of these papillae were dendritic shape, fist-like, and cauliflower-like shape, respectively.
• Click emission in Dall’s porpoise Phocoenoides dalli, focusing on physical properties of tissues

  Mika Kuroda, Motoki Sasaki, Kazutaka Yamada, Nobuhiro Miki, Natsuki Matsui, Takashi Matsuishi

  PLOS ONE 13 (9) e0202426  2018/09/14 [Refereed][Not invited]
   

  Dall's porpoise (Phocoenoides dalli) is one of most common North Pacific porpoise species, for which information on sound-emitting processes is limited. To evaluate the mechanism of click emission in the head of this porpoise, the distribution of acoustic impedance in head tissues was calculated using density and Young's modulus'which is a measure of linear resistance to linear compression. Two Dall's porpoise heads were examined: one for macroscopic dissection, and one for investigating the distribution of acoustic impedance calculated from CT-measured density, and Young's modulus measured by creep meter. Acoustic impedance increased from the dorsal bursae to the melon's emitting surface, with impedance matching observed at the boundary between the emitting surface and seawater, and was more similar in distribution to Young's modulus than it was to density. The distribution of acoustic impedance differed from that of harbor porpoise (Phocoena phocoena), despite similarities in the sound producing organs in the heads of Dall's and harbor porpoises. A comparison of the physical properties of Dall's and harbor porpoise head tissues suggests that hypertrophic vestibular sacs and an oval emitting surface are common characteristics in Phocoenidae.
• Consumption activities and expenditure of anglers targeting endangered fishes in Hokkaido Lakes, Japan

  Yoshiyama, T, Tsuboi J, Matsuishi, T

  Nippon Suisan Gakkaishi 84 (5) 858 - 871 0021-5392 2018/09 [Refereed][Not invited]
   

  Recreational angling under appropriate management can contribute to the conservation of a fish population even for endangered fish, because anglers can enhance the social and economic foundation for the conservation of a fish population via angling tourism. Miyabe charr Salvelinus malma miyabei in Lake Shikaribetsu and Sakhalin taimen Parahucho perryiin Lake Shumarinai are popular targets of recreational fishing, both of which are endangered species due to their limited habitat. In the present study, the consumption activity of anglers was evaluated in each lake as recreational fishery for endangered fish in Hokkaido, Japan, using a questionnaire. The residence of anglers was distributed all over Japan for both lakes. Hokkaido-resident anglers spent 5,000-15,000 yen, and out-of-Hokkaido resident anglers spent 70,000-150,000 yen. The total cost spent by all anglers was estimated to be 33.3 million yen for Lake Shikaribetsu, and 41.6 million yen for Lake Shumarinai. It was assumed that 7.5% of the total cost for Lake Shikaribetsu and 15% of that for Lake Shumarinai were spent on the regional economy near each lake through accommodation and living costs. As a result, it was concluded that recreational fishing enhanced the social and economic value of the endangered fish in each lake.
• Presence and behavior of harbor porpoises (Phocoena phocoena) around set nets revealed using passive acoustic monitoring

  Hiroki Higashisaka, Takashi Matsuishi, Tomonari Akamatsu

  Fisheries Research 204 269 - 274 0165-7836 2018/08/01 [Refereed][Not invited]
   

  Harbor porpoises (Phocoena phocoena) are often captured as bycatch in set net fisheries, which may have a large impact on their population and reduces the efficiency of fishing operations. Therefore, this study aimed to use passive acoustic monitoring using “A-tag” stereo acoustic data loggers to observe the presence and movement of harbor porpoises in two large set nets off Usujiri, Hakodate, Hokkaido, Japan, from April to May 2013–2015. Bycatch of harbor porpoises in the set nets was surveyed from onboard the set net fishing boat. Harbor porpoises were observed in the final trap of the set net on 10 separate days however, bycatch was confirmed only once. These results indicate that the number of harbor porpoises captured as bycatch represents only a fraction of the number that are present in the set net, demonstrating their ability to escape from the net.
• Prominent hepatic ductular reaction induced by Oschmarinella macrorchis in a Hubbs' beaked whale Mesoplodon carlhubbsi, with biological notes.

  Shotaro Nakagun, Akira Shiozaki, Mari Ochiai, Ayaka Matsuda, Yuko Tajima, Takashi Matsuishi, Kenichi Watanabe, Noriyuki Horiuchi, Yoshiyasu Kobayashi

  Diseases of aquatic organisms 127 (3) 177 - 192 2018/03/05 [Refereed][Not invited]
   

  Beaked whales are among the least known group of cetaceans, and information regarding their pathology and parasitology is especially scarce. We describe a case of significant parasitism by a trematode found in the liver of an adult male Hubbs' beaked whale Mesoplodon carlhubbsi that stranded in Hokkaido, Japan. Post-mortem examinations revealed a localised area of discolouration restricted to the hilar region of the left hepatic lobe, where spindle-shaped trematodes occupied the dilated and hypertrophic bile ducts. Histologically, the intrahepatic bile ducts were characterised by adenomatous hyperplasia with goblet cell metaplasia of the biliary epithelium. Findings in the adjacent hepatic parenchyma included pseudocarcinomatous ductular reactions obliterating hepatocytes, a histomorphology not previously reported in marine mammals. Morphological identification of the trematode corresponded to Oschmarinella macrorchis, which has only been reported once in a Stejneger's beaked whale, M. stejnegeri. PCR amplification and sequencing analyses of the parasite's mtDNA ND3, 18S and 28S rRNA regions generated novel gene sequences. Environmental contaminant levels were measured to explore its potential relationship with the parasitism but there was no conclusive association. A high level of polychlorinated biphenyl (30000 ng g-1 lipid weight) was detected in the blubber of this individual, when compared to those of 3 other male Hubbs' beaked whales stranded in Japan. Stomach contents were also analysed, indicating the presence of various squid species and unidentified fish. Our results contribute to the knowledge of a little-known beaked whale and provide evidence for the first time of the pathobiological response caused by O. macrorchis.
• An assessment of the sustainability of recreational fishery targeting endemic Miyabe charr Salvelinus malma miyabei in Lake Shikaribetsu, Japan

  Yoshiyama Taku, Tsuboi Jun-Ichi, Ogushi Shingo, Matsuishi Takashi

  Nippon Suisan Gakkaishi (Japanese Edition) 84 (1) 119 - 129 1349-998X 2018/03 [Refereed][Not invited]
   

  Sustainable recreational fisheries can be a means of conserving fish populations, even for endangered species. Miyabe charr Salvelinus malma miyabei is a popular target for recreational anglers, which inhabits only Lake Shikaribetsu, Japan. In this study, the sustainability of recreational fishery for endemic Miyabe charr was assessed in terms of satisfaction of anglers and stock sustainability, by conducting a questionnaire survey of anglers. The results suggested that anglers can be sufficiently satisfied and motivated to visit again by catching approximately 15 Miyabe charr per day. The present population level can be sustained at this catch rate. In addition, mortality caused by angling is controlled by fishing regulations, and was kept to a reasonable level to sustain the Miyabe charr population. Moreover, anglers travel from all over Japan to Lake Shikaribetsu for Miyabe charr angling, boosting the regional economy through their fishing trips, which enhance the social and economic value of Miyabe charr. Based on these results, recreational fishing for Miyabe charr is sustainable and contributes to its conservation.
• Tissue-specific bioaccumulation of long-chain perfluorinated carboxylic acids and halogenated methylbipyrroles in Dall's porpoises (Phocoenoides dalli) and harbor porpoises (Phocoena phocoena) stranded in northern Japan

  Fujii Yukiko, Kato Yoshihisa, Sakamoto Kentarou, Matsuishi Takashi, Harada Kouji, Koizumi Akio, Kimura Osamu, Endo Tetsuya, Haraguchi Koichi

  Science of the Total Environment 616-617 554 - 563 1879-1026 2018/03/01 [Refereed][Not invited]
   

  This study investigated accumulation of perfluoroalkyl substances (PFASs), persistent organochlorines (OCs), and naturally produced halogenated compounds (NHCs), including brominated methylbipyrroles and methoxylated bromodiphenyl ethers, in liver, blood, and blubber from Dall's porpoises (Phocoenoides dalli) and harbor porpoises (Phocoena phocoena) stranded in Hokkaido, northern Japan. Profiles of the PFASs were dominated by perfluoroundecanoic acid and perfluorotridecanoic acid, both of which accounted for 70% of the total measured PFAS concentrations in both porpoise species. The mean concentrations of the ∑ PFCA were 573 ng/g wet weight (ng/g-wet) in liver, 62 ng/g-wet in whole blood, and 28 ng/g-wet in blubber from the Dall's porpoises, and were significantly higher (p < 0.05) than those in the harbor porpoises. The hepatic concentrations of perfluorooctane sulfonate (PFOS) were < 14 ng/g-wet, and accounted for only 3% of the total measured PFASs. The profiles of PFASs in the porpoises resembled those in fish species in this area, implying a common source of exposure to PFASs in East Asia. On the other hand, in the blubber of Dall's porpoises, NHCs were dominated by 2,3,3′,4,4′,5,5′-heptachloro-1′-methyl-1,2′-bipyrrole (867 ng/g-wet), 5,5′-dichloro-1,1′-dimethyl-3,3′,4,4′-tetrabromo-2,2′-bipyrrole (481 ng/g-wet), and 6-methoxy-2,2′,4,4′-tetrabromodiphenyl ether (30 ng/g-wet), which were present at higher concentrations than in harbor porpoises. Factor analysis with varimax rotation revealed that factor 1 had higher eigenvectors (element in eigenvalues) for long-chain PFCAs and PFOS, which was found in the highest concentrations in the liver, whereas factor 2 was mainly associated with lipid soluble NHCs and OCs in both species. No correlations were observed between long-chain PFCAs and NHCs in the porpoises, probably because of the different sources and accumulation kinetics. Future research should assess the temporal trends and long-term effects of PFASs and NHCs in the tissues of mammals from the Asia-Pacific region.
• Long-term shifts in the growth and maturation size of Miyabe charr Salvelinus malma miyabei

  Yuki Yamamaoto, Taku Yoshiyama, Keitaro Kajiwara, Toshikuni Nakatani, Takashi Matsuishi

  Fisheries Science 84 (3) 1 - 9 1444-2906 2018/02/20 [Refereed][Not invited]
   

  Overfishing can affect life history traits, resulting in population collapse and oftentimes a decrease in length-at-age and maturation size in fish populations. However, little is known about the recovery mechanisms and time scales of these traits in exploited wild populations. In the study reported here, we documented long-term shifts in growth and mature size in Miyabe charr Salvelinus malma miyabei associated with a history of recreational fishing in Lake Shikaribetsu for approximately 80 years. Downsizing in the charr was observed when the charr population collapsed due to intensive recreational fishing. However, subsequent moratoriums and the introduction of fishing regulations, especially the implementation of a catch-and-release policy, during the following 10–30 years facilitated the recovery of population size, length-at-age and mature fish size. This study provides important insights into the biological changes and required recovery time scales of a heavily harvested population and supports management and conservation strategies.
• Correction to: Long-term shifts in the growth and maturation size of Miyabe charr Salvelinus malma miyabei (Fisheries Science, (2018), 84, 3, (425-433), 10.1007/s12562-018-1186-5)

  Yamamoto, Y., Yoshiyama, T., Kajiwara, K., Nakatani, T., Matsuishi, T.

  Fisheries Science 84 (3) 435 - 435 2018
• Description of the karyotypes of Stejneger's beaked whale (Mesoplodon stejnegeri) and Hubbs' beaked whale (M. carlhubbsi)

  Nozomi Kurihara, Yuko Tajima, Tadasu K. Yamada, Ayaka Matsuda, Takashi Matsuishi

  GENETICS AND MOLECULAR BIOLOGY 40 (4) 803 - 807 1415-4757 2017/10 [Refereed][Not invited]
   

  The genus Mesoplodon (Cetacea: Odontoceti: Ziphiidae) is one of the few cetacean genera with the karyotype 2n = 42. The 2n = 42 karyotype of M. europaeus and M. carlhubbsi is largely consistent with the general cetacean karyotype 2n = 44, although other 2n = 42 karyotypes do not exhibit clear homologies with the general cetacean karyotype. Therefore, the chromosomes of Mesoplodon species may be the key to understanding cetacean karyological evolution. In the present study, the male karyotypes of M. stejnegeri and M. carlhubbsi were examined. In both species, the diploid number of the male karyotype was 42. Both species had the following characteristics: 1) a huge subtelocentric X chromosome with a large C-block; 2) a small metacentric Y chromosome; 3) nucleolus organizer regions (NORs) in the terminal regions of a large autosome and one or two small metacentric autosomes; 4) small metacentric autosomes; 5) large submetacentric and subtelocentric autosomes; 6) less accumulated C-heterochromatin in the centromeric region; and 7) heteromorphism in C-heterochromatin accumulation between homologues. Characteristics 1 and 3 are peculiar to only the karyotypes of Mesoplodon species, whereas characteristics 4, 5, 6, and 7 are also found in the species with the general cetacean karyotype 2n = 44.
• An overview of purse seine fisheries management in Malaysia

  Harlyan LI, Matsuishi T

  The JSFS 85th Anniversary-Commemorative International Symposium“Fisheries Science for Future Generations”Symposium Proceedings 1 - 2 2017/09 [Refereed][Not invited]
  
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• Polybrominated diphenyl ethers (PBDEs) and their hydroxylated and methoxylated analogues in the blood of harbor, Dall's and finless porpoises from the Japanese coastal waters

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Matsuda A, Shiozaki A, Matsuishi T, Amano M, Iwata H, Tanabe S

  Marine Environmental Research 128 124 - 132 0141-1136 2017/07 [Refereed][Not invited]
   

  This study investigated the accumulation of polybrominated diphenyl ethers (PBDEs) and their hydroxylated and methoxylated analogues (OH-PBDEs and MeO-PBDEs) in the blood of harbor porpoises, Dall's porpoises, and finless porpoises stranded or bycaught in Japanese coastal waters and in the North Pacific Ocean. Moreover, we suggested the origins of these contaminants and the factors affecting their pattern of accumulation. Levels of PBDEs in Dall's porpoises were one order of magnitude greater than those in the other species. OH-PBDE and MeO-PBDE levels were comparable to those of PBDEs. However, no correlation was found between the levels of OH-PBDEs and PBDEs, whereas a strong correlation was found between that of OH-PBDEs and MeO-PBDEs (p < 0.001). 6OH-BDE47, reported compound bio-synthesized by marine low-trophic level organisms, was the dominant congener. These results suggest that PBDEs found in these porpoise species derive from flame retardants, but OH-PBDEs and MeO-PBDEs are mainly of natural origins. (C) 2016 Elsevier Ltd. All rights reserved.
• Stranding Records of Cetaceans from Rishiri Island (‒2015)

  Matsuishi T, Matsuda A, Kuroda M, Sato M, Sato R, Ishikawa H

  Risirhi Studies 利尻町立博物館 43 (36) 83 - 88 0919-9160 2017/03 [Not refereed][Not invited]
   

  Rishiri Island is located in the Sea of Japan off the northwest coast of Hokkaido, Japan. Stranding records for this island could be important information in understanding the migration patterns of cetaceans in the Sea of Japan. A total of 21 stranding records were collected. Each stranding record consists of one individual. The records include six Stejneger’s beaked whales Mesoplodon stejnegeri (including one unidentified Mesoplodon); four Dall’s porpoises Phocoenoides dalli (one truei-type, two dalli-type and one type unidentified); four harbor porpoises Phocoena phocoena; three Baird’s beaked whales Berardius bairdii; one killer whale Orcinus orca; one beluga Delphinapterus leucas (sighting); and two unidentified cetaceans.
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• Recreational fishery as a conservation tool for endemic Dolly Varden Salvelinus malma miyabei in Lake Shikaribetsu, Japan

  Taku Yoshiyama, Jun-ichi Tsuboi, Takashi Matsuishi

  FISHERIES SCIENCE 83 (2) 171 - 180 0919-9268 2017/03 [Refereed][Not invited]
   

  Recreational angling is a popular leisure activity globally and can be a threat or useful conservation tool depending on the management strategy. Miyabe charr Salvelinus malma miyabei is an endemic fish that inhabits Lake Shikaribetsu, and a management program was established to harmonise recreational fishery and conservation. To examine the suitability of this program, population assessment was conducted with the cooperation of anglers. The population size in 2014 as assessed by tag-and-release angling was estimated to be 105,300 [95% confidence interval (CI) 37,300-178,600], much higher than the reported estimate in 1995. Further, angling mortality was estimated to be quite low. Moreover, no decreasing population trend was detected on analysing 8 years of anglers' catch data. Consequently, angling has facilitated stock assessments of Miyabe charr under the current program. This case is a good example of recreational angling acting as a conservation tool under appropriate management.
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• Concentration and congener pattern of polychlorinated biphenyls in blubber and liver of Hubbs' beaked whale (Mesoplodon carlhubbsi), using a sulfoxide and an Ag-ION solid phase extraction cartridge as a simplified cleanup technique for biological samples

  Katsunori Anezaki, Ayaka Matsuda, Takashi Matsuishi

  MARINE POLLUTION BULLETIN 113 (1-2) 282 - 286 0025-326X 2016/12 [Refereed][Not invited]
   

  We performed the first known study of polychlorinated biphenyls (PCBs) concentrations and patterns in the blubber and liver of a Hubbs' beaked whale. Samples were pretreated with Supeldean (TM) sulfoxide and Discovery (R) Ag-ION solid phase extraction cartridges to remove whale oil. PCB concentrations in the blubber and liver were 13,000 and 7300 ng/g lipid, respectively. Highly poisonous congeners such as dioxin-like (DL) PCBs tended to accumulate in the liver. The toxic equivalents (TEQ) of DL-PCBs in the liver (740 pg-TEO/g lipid) were higher than those in the blubber (74 pg-TEQ/g lipid). The blubber and liver samples showed that hexachlorinated biphenyls were dominant among homologues, and PCB-153 was dominant among congeners. Several congeners accumulated disproportionately in the blubber and the liver (PCB-28, 52, 74, 99, and 118), while others did not persist (PCB-31, 70, and 110). This indicates that PCBs are metabolized differently according to their specific composition. (C) 2016 Elsevier Ltd. All rights reserved.
• Population estimation of Kunimasu Oncorhynchus kawamurae in Lake Saiko

  Jun-ichi Tsuboi, Takashi Matsuishi, Katsuji Shibuya, Yoshihiro Takada, Toshihiro Aoyagi, Kosho Tanizawa, Ryo Ozawa, Takumi Okazaki

  NIPPON SUISAN GAKKAISHI 82 (6) 884 - 890 0021-5392 2016 [Refereed][Not invited]
   

  In Lake Saiko, Kunimasu Oncorhynchus kawamurae was discovered and has been caught by recreational angling indistinguishable from a related species Himemasu Oncorhynchus nerka. From 2012 to 2014, we conducted a creel survey for two days just after the start of the angling season, aging by scale, and species identification by DNA analysis. The total length composition was transformed into the age composition using age-length keys. Under the assumption of an equilibrium condition, total mortality Z was roughly estimated from the age composition. Fishing mortality F was estimated from Z by subtracting natural mortality empirically estimated from longevity (four to seven years). The populations of Kunimasu and Himemasu were estimated by the number of total catch C, F, and Z. Multiplying N and the ratio of the number of Kunimasu in the recreational catch, the population of Kunimasu was roughly estimated to be 4,300-11,000 individuals.
• Catch per unit effort estimation and factors influencing it from recreational angling of sockeye salmon (Oncorhynchus nerka) and management implications for Lake Toya, Japan

  Emmanuel A. Sweke, Yu Su, Shinya Baba, Takashi Denboh, Hiroshi Ueda, Yasunori Sakurai, Takashi Matsuishi

  Lakes and Reservoirs: Research and Management 20 (4) 264 - 274 1440-1770 2015/12/01 [Refereed][Not invited]
   

  The present study examined the factors influencing catch per unit effort (CPUE) and standardized the CPUE of sockeye salmon (Oncorhynchus nerka) from offshore angling in Lake Toya, northern Japan. A generalized linear model (GLM), based on a negative binomial error distribution, was used to standardize the catch-and-effort data collected from anglers, using questionnaires and interview surveys during the fishing season (June) in 1998, 1999 and 2001-2012. Year, week, fishing area, number of fishing rods, fishing duration and Year × Week were the factors that significantly (P < 0.05) influenced CPUE. Anglers' fishing experience had no significant effect (P = 0.06) on CPUE. Limiting fishing duration, number of anglers and fishing rods may reduce fishing pressure and ensure sustainable management of the fishery. The results of the present study on standardized CPUE can also be useful in fine-tuning age-based models, such as Virtual Population Analysis (VPA-ADAPT), for the fish species in the lake, studies that are currently lacking. Regular and interdisciplinary studies that include biophysical factors are required to provide more understanding of the variations in the abundance of the fish species in the lake and in the ecosystem at large.
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• Tissue physical property of the harbor porpoise Phocoena phocoena for investigation of the sound emission process

  Mika Kuroda, Motoki Sasaki, Kazutaka Yamada, Nobuhiro Miki, Takashi Matsuishi

  JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 138 (3) 1451 - 1456 0001-4966 2015/09 [Refereed][Not invited]
   

  The process by which sound is propagated in the head of a toothed whale is still a subject of discussion. Investigating the distribution of acoustic impedance calculated by density and Young's modulus is effective for quantitative comprehension because acoustic impedance determines the reflection coefficient of a sound wave. However, the sound propagation process of the toothed whale has been mainly examined by either anatomical techniques or the measurement of density or sound velocity. In the current study, the acoustic impedance of head tissue of harbor porpoise was measured. Results of this study should be a helpful information for further discussion about the relationship between the structure of sound-producing organ and clicks property. (C) 2015 Acoustical Society of America.
• Radiocesium contamination of cetaceans stranded along the coast of Hokkaido, Japan, and an estimation of their travel routes

  Tuguya Nakamura, Osamu Kimura, Ayaka Matsuda, Takashi Matsuishi, Mari Kobayashi, Tetsuya Endo

  MARINE ECOLOGY PROGRESS SERIES 535 1 - 9 0171-8630 2015/09 [Refereed][Not invited]
   

  We analyzed radiocesium (Cs-134 and Cs-137) levels in the muscle tissue of several odontocetes and mysticetes stranded on the coast of Hok kaido (the northernmost island of Japan) in 2011 and 2012, following the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident in March 2011. Since most of the radiocesium from the FDNPP was released into the western North Pacific Ocean and carried eastward from the Japan coast, there was little radiocesium contamination in the seawater around Hok kaido. Hokka ido is surrounded by the North Pacific Ocean, the Japan Sea, and the Okhotsk Sea, but radiocesium was predominantly detected in the cetaceans stranded along the North Pacific coast between June and October 2011. Among the stranded cetaceans, which included the Pacific white-sided dolphin, harbour porpoise and Dall's porpoise (odontocetes) as well as the common minke whale and humpback whale (mysticetes), the highest level of contamination was found in a common minke whale. The radiocesium contamination of these ceta ceans suggests that they moved seasonally from the south of Hokkaido, particularly through the contaminated area of the western North Pacific Ocean. The radiocesium levels in the tissues of these animals is likely a result of the contamination level of the seawater along their travel route, rather than their trophic level, because of the sudden changes in radiocesium transport and diffusion in seawater that occurred in 2011.
• イルカの発音器官の解剖学的構造と超音波の音響学的性質の関係

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 植草康浩, 天野雅男, 小林万里, 山田格, 松石隆

  海洋音響学会2015年度研究発表会講演論文集 15 - 16 2015/05 [Not refereed][Not invited]
  
• Stock assessment of sockeye salmon Oncorhynchus nerka by using adaptive framework virtual population analysis

  Yu Su, Emmanuel Andrew Sweke, Takashi Denboh, Hiroshi Ueda, Takashi Matsuishi

  NIPPON SUISAN GAKKAISHI 81 (3) 418 - 428 0021-5392 2015/05 [Refereed][Not invited]
   

  In Lake Toya, sockeye salmon Oncorhynchus nerka is heavily caught by recreational angling and its population has widely fluctuated from year to year. Adaptive framework virtual population analysis (ADAPT VPA) was conducted as a step towards sound management of the stock. Surveys by mail, access point, and questionnaire were carried out to collect data on fork length, wet body weight, species, and catch number of sockeye salmon from anglers. Additionally, we carried out gillnet sampling whose data included wet body weight, and fork length which was used in age length key of sockeye salmon. The catch data of sockeye salmon from Lake Toya Fisheries Cooperative Association (Lake Toya FCA) and anglers were used to calculate total catch. Catch per unit effort (CPUE) from anglers was used as an abundance index for the ADAPT VPA. The stock of sockeye salmon in the lake was estimated to be 8.31 tons in 1998, but decreased noticeably to 4.13 tons in 2002. This was followed by a considerable increase to 17.26 tons in 2009. In 2012, the estimated stock weight was 7.77 tons.
• Brown Adipose Tissue in Cetacean Blubber

  Osamu Hashimoto, Hirofumi Ohtsuki, Takehiko Kakizaki, Kento Amou, Ryo Sato, Satoru Doi, Sara Kobayashi, Ayaka Matsuda, Makoto Sugiyama, Masayuki Funaba, Takashi Matsuishi, Fumio Terasawa, Junji Shindo, Hideki Endo

  PLOS ONE 10 (2) e0116734  1932-6203 2015/02 [Refereed][Not invited]
   

  Brown adipose tissue (BAT) plays an important role in thermoregulation in species living in cold environments, given heat can be generated from its chemical energy reserves. Here we investigate the existence of BAT in blubber in four species of delphinoid cetacean, the Pacific white-sided and bottlenose dolphins, Lagenorhynchus obliquidens and Tursiops truncates, and Dall's and harbour porpoises, Phocoenoides dalli and Phocoena phocoena. Histology revealed adipocytes with small unilocular fat droplets and a large eosinophilic cytoplasm intermingled with connective tissue in the innermost layers of blubber. Chemistry revealed a brown adipocyte-specific mitochondrial protein, uncoupling protein 1 (UCP1), within these same adipocytes, but not those distributed elsewhere throughout the blubber. Western blot analysis of extracts from the inner blubber layer confirmed that the immunohistochemical positive reaction was specific to UCP1 and that this adipose tissue was BAT. To better understand the distribution of BAT throughout the entire cetacean body, cadavers were subjected to computed tomography (CT) scanning. Resulting imagery, coupled with histological corroboration of fine tissue structure, revealed adipocytes intermingled with connective tissue in the lowest layer of blubber were distributed within a thin, highly dense layer that extended the length of the body, with the exception of the rostrum, fin and fluke regions. As such, we describe BAT effectively enveloping the cetacean body. Our results suggest that delphinoid blubber could serve a role additional to those frequently attributed to it: simple insulation blanket, energy storage, hydrodynamic streamlining or contributor to positive buoyancy. We believe delphinoid BAT might also function like an electric blanket, enabling animals to frequent waters cooler than blubber as an insulator alone might otherwise allow an animal to withstand, or allow animals to maintain body temperature in cool waters during sustained periods of physical inactivity.
• Pacific saury fishing forecasting by using random forest

  Shinya Baba, Takashi Matsuishi

  NIPPON SUISAN GAKKAISHI 81 (1) 2 - 9 0021-5392 2015/01 [Refereed][Not invited]
   

  In Japan, Pacific saury fishing forecasts are indispensable information for fisheries. In this study, the abundance of Pacific saury in fishing grounds was predicted by using random forest and the forecast was evaluated by the Monte Carlo re-sampling method. A Pacific saury abundance index with three categories was used for the response variables. A total of 186 explanatory variables from 22 indices of marine environments from 1972 to 2011 were used. After variable selection by random forest, only four kinds of variable were chosen as explanatory variables. The hitting ratio became approximately 62% and exceeded the accuracy of present posted forecasts. By using random forest, the explanatory variables can be compressed and accurate forecasts can be made by using many explanatory variables.
• Evaluation of the Sustainability on the Walleye Pollock Fishery off Pacific Coast of Hokkaido by using the MSC Fishery Standard

  Fukutake C, Matsuishi T, Nagano I

  Bulletin of Fisheries Sciences, Hokkaido University 北海道大学大学院水産科学研究院 64 (3) 83 - 87 1346-1842 2014/12 [Not refereed][Not invited]
   

  To evaluate and improve the sustainability of Walleye Pollock fisheries for the Pacific stock according to the global standard, the fisheries is evaluated by MSC Fishery Standard which is a globally recognized requirements for an eco-label certification of sustainable fishery published by the Marine Stewardship Counsil. MSC Certification Requirements were used which describes the scoring of 31 performance indicators (PI) grouped to three principles, (1) stock assessment, (2) ecological consideration, and (3) fishery management. For the certification, all score should be over 60, and the average score for each principles should be over 80. The evaluation was carefully conducted by two researchers independently based on the disclosed information. As a result, the total average score was 78.3, and the average score for each principle was (1) 92.5, (2) 69.0, (3) 84.4. The scores of the 4 PIs in principle 2 were under 60. Thus, the fisheries of the Walleye Pollock Pacific stock does not meet the requirements as sustainable fishery as the current condition according to the MSC standards. The main cause for the low score is the lack of the monitoring of the otter trawl fishery on the damage to the sea bed, and on the by-catch. An observers program would improve the sustainability of the fisheries.
• Environmental preference of Pacific white-sided dolphin in Tsugaru Strait

  Maezawa T, Higashisaka H, Ishii M, Tashiro G, Kuroda M, Matsuda A, Matsuishi T

  Japan Cetology (24) 27 - 32 1881-3445 2014/11 [Refereed][Not invited]
   

  A Spatial distribution of cetacean has been thought to be closely related to marine environment, such as sea surface temperature, chlorophyll-a concentration, sea floor gradient, and water depth which may affect an abundance of prey and in turn may affect spatial distribution of cetacean. In this study, from the data of sighting survey in Tsugaru Strait conducted by Hokkaido University cetacean research group, encounter rate and degree of aggregation of Pacific white-sided dolphin (PWS) were examined for every division. In addition to this, a relationship of a spatial distribution of PWS to the marine environment ware also examined by using generalized linear mixed model (GLMM). From these analysis, it was shown that PWS is aggregated on one or two divisions inside a bay area. Moreover, the division where PWS aggregated had feature low sea surface temperature and low chlorophyll-a concentration. Prevented studies show that aggregation of cetacean related with high chlorophyll-a concentration, however, the result of this study indicated the opposite tendency to these studies. Additionally the aggregation of PWS was seen regardless of the feature low sea surface temperature and low chlorophyll-a concentration. Thus it was showed that in spite of the environment the spatial distribution of PWS is determined in Tsugaru Strait
• Stable isotope ratios of carbon, nitrogen and oxygen in killer whales (Orcinus orca) stranded on the coast of Hokkaido, Japan

  Tetsuya Endo, Osamu Kimura, Rie Sato, Mari Kobayashi, Ayaka Matsuda, Takashi Matsuishi, Koichi Haraguchi

  MARINE POLLUTION BULLETIN 86 (1-2) 238 - 243 0025-326X 2014/09 [Refereed][Not invited]
   

  We analyzed delta C-13, delta N-15 and delta O-18 in the muscle and liver from killer whales stranded on the coast of Japan. The delta N-15 values in the muscle samples from calves were apparently higher than those in their lactating mothers, suggesting that nursing may result in the higher delta N-15 values in the muscle samples of calves. The delta N-15 value in the muscle samples of male and female whales, except for the calves, were positively correlated with the delta C-13 values and body length, suggesting that the increases in delta N-15 were due to the growth of the whales and increase in their trophic level. In contrast, the delta O-13 values in the muscle samples of female whales except for the calves were negatively correlated with the delta C-13 and delta N-15 values. The delta O-15 may be lower in whales occupying higher trophic positions (delta N-15), although it might also be affected by geographic and climatic conditions. (C) 2014 Elsevier Ltd. All rights reserved.
• Evaluation of the predictability of fishing forecasts using information theory

  Shinya Baba, Takashi Matsuishi

  FISHERIES SCIENCE 80 (3) 427 - 434 0919-9268 2014/05 [Refereed][Not invited]
   

  The catch forecast is important for fisheries activities. Previous research has tried to improve forecast accuracy. However the forecast accuracy does not directly correspond to the forecast benefit, and an inaccurate forecast could be more beneficial than accurate one. Herein as part of the forecast utility, predictability was evaluated using information theory. Mutual information (MI) was used as index of predictability. MI denotes a reduction in uncertainty when a forecast is taken into account. Adding this, hit ratio (HR) and relative entropy (R) were used as consistency indices. HR denotes a frequency for which the predicted values are consistent with the actual values, and R denotes the distance of the probability distribution between the actual and forecasted fishing conditions. As an application, the long-term change-ratio forecasts in 1972-2009 (n = 36), short-term change-ratio forecasts (n = 34), and short-term level forecasts (n = 33) in 2004-2009 of Pacific saury Cololabis saira fishery were evaluated. The order of MI, HR, and R varied between these forecasts, indicating that forecast predictability and consistency do not correspond. Monitoring multiple indices would improve forecasting systems.
• An ectoparasite and epizoite from a western gray whale (Eschrichtius robustus) stranded on Tomakomai, Hokkaido, Japan

  Murase M, Tajima Y, Okamoto M, Matsuishi T, Yamada KT, Asakawa M

  Journal of Rakuno Gakuen University 酪農学園大学 38 (2) 149 - 152 2014/03 [Refereed][Not invited]
   

  Postmortem examination was performed on a female western gray whale (Eschrichtius robustus) stranded at Tomakomai-shi, Hokkaido, Japan in August, 2007, and amphipod whale lice (Cyamus scammoni) and cirripedian epizoites (Cryptolepas rachianecti) were obtained. The histopathological investigation of the epizoites was given.
• Halogenated phenolic contaminants in the blood of marine mammals from Japanese coastal waters

  Kei Nomiyama, Chika Kanbara, Mari Ochiai, Akifumi Eguchi, Hazuki Mizukawa, Tomohiko Isobe, Takashi Matsuishi, Tadasu K. Yamada, Shinsuke Tanabe

  MARINE ENVIRONMENTAL RESEARCH 93 15 - 22 0141-1136 2014/02 [Refereed][Not invited]
   

  Information on accumulation of halogenated phenolic contaminants in the blood of marine mammal is limited. The present study, we determined the residue levels and patterns of chlorinated and brominated phenolic contaminants (OH-PCBs, OH-PBDEs and bromophenols) in the blood collected from pinnipeds (northern fur seal, spotted seal, Steller sea lion and ribbon seal) and small cetaceans (harbor porpoise and Dall's porpoise) from Japanese coastal waters. Concentrations of PCBs and OH-PCBs found in pinnipeds were the same as in small cetaceans living in the same coastal area. However, significantly lower concentrations of brominated compounds (PBDEs, MeO-PBDEs, OH-PBDEs) were found in the blood of pinnipeds than the levels found in cetacean species which live same area (p < 0.05). This difference of accumulation pattern suggested pinnipeds have an enhanced capability to degrade organobromine compounds relative to cetaceans. (C) 2013 Elsevier Ltd. All rights reserved.
• Examination of the effects of largemouth bass (Micropterus salmoides) and bluegill (Lepomis macrochirus) on the ecosystem attributes of lake Kawahara-oike, Nagasaki, Japan

  Md. Monir Hossain, Gurbir Perhar, George B. Arhonditsis, Takashi Matsuishi, Akira Goto, Mikio Azuma

  ECOLOGICAL INFORMATICS 18 149 - 161 1574-9541 2013/11 [Refereed][Not invited]
   

  The introduction of largemouth bass (Micropterus salmoides) and bluegill sunfish (Lepomis macrochirus) into the freshwater ecosystems of Japan has resulted in the suppression and/or replacement of native species, generating considerable concerns among resource managers. The impacts of largemouth bass and bluegill on native fauna have been examined in aquaria and isolated farm ponds, but there is limited work examining the likelihood to fundamentally modifying Japan's lakes. The objective of the present study is to examine the direct and synergistic ecological effects of largemouth bass and bluegill on the biotic communities of Lake Kawahara-oike, Nagasaki, Japan, using an ecosystem (Ecopath) modeling approach. Specifically, we examine whether the two fish species have played a critical role in shaping the trophodynamics of the lake. We attempt to shed light on the trophic interactions between largemouth bass and bluegill and subsequently evaluate to what extent these interactions facilitate their establishment at the expense of native species. We also examine how these changes propagate through the Lake Kawahara-oike food web. Our study suggests that the introduction of bluegill has induced a range of changes at multiple trophic levels. The present analysis also provides evidence that largemouth bass was unable to exert significant top-down control on the growth rates of the bluegill population. Largemouth bass and bluegill appear to prevail over the native fish species populations and can apparently coexist in large numbers in invaded lakes. Future management strategies controlling invasive species are urgently required, if the integrity of native Japanese fish communities is to be protected. (C) 2013 Elsevier B.V. All rights reserved.
• Two genetically distinct stocks in Baird's beaked whale (Cetacea: Ziphiidae)

  Kitamura, S., Matsuishi, T., Yamada, T.K., Tajima, Y., Ishikawa, H., Tanabe, S., Nakagawa, H., Uni, Y., Abe, S.

  Marine Mammal Science 29 (4) 755 - 766 0824-0469 2013/10 [Refereed][Not invited]
  
• Seasonal variability and yearly trend of cetacean encouters in decadal sighting survey in the Tsugraru Strait, Japan

  Ichimori T, Suzuki S, Kojima S, Ishimori K, Sugitani M, Matsuda A, Ono Y, Matsuishi T

  Japan Cetology 日本セトロジー研究会 (23) 29 - 33 1881-3445 2013/08 [Refereed][Not invited]
   

  The cetacean sighting records from 375 sighting survey in the Tsugaru Strait for ten years were compiled and the seasonal variability and yearly trend of cetacean encounter was examined. A total of 1876 school 19065 individuals were observed, and at least 7 species are identified such as Pacific white-sided dolphin, Dall’s porpoise, Habour porpoise, Minke whale, Bottle nosed dolphin, Common dolphin, and Killer whale. Except for Killer whale, the encounter of all of the cetacean were peaked during April to June. The encounter is rare during August and October, and no encounter has been recorded for this season for 10 years except for Pacific white-sided dolphin and Habour porpoise. The encounter rate of Harbour porpoise has been significantly increased. No encounter of Common dolphin and Bottle-nosed dolphin has been recorded after 2004, and the encounter to Killer whales had been occurred after 2009.
• Accumulation of hydroxylated polychlorinated biphenyls (OH-PCBs) and implications for PCBs metabolic capacities in three porpoise species

  Mari Ochiai, Kei Nomiyama, Tomohiko Isobe, Hazuki Mizukawa, Tadasu K. Yamada, Yuko Tajima, Takashi Matsuishi, Masao Amano, Shinsuke Tanabe

  CHEMOSPHERE 92 (7) 803 - 810 0045-6535 2013/08 [Refereed][Not invited]
   

  The present study investigated polychlorinated biphenyls (PCBs) and hydroxylated metabolites of PCBs (OH-PCBs) in blood from three porpoise species: finless porpoises (Neophocaena phocaenoides), harbor porpoises (Phocoena phocoena), and Dall's porpoises (Phocoenoides dalli). The porpoises were found stranded or were bycaught along the Japanese coast. Concentrations of OH-PCB were the highest in Dall's porpoises (58 pg g(-1) wet wt), second highest in finless porpoises (20 pg g(-1) wet wt), and lowest in harbor porpoises (8.3 pg g(-1) wet wt). The concentrations in Dall's porpoises were significantly higher than the concentrations in finless porpoises and harbor porpoises (p < 0.05 and p < 0.01, respectively). There was a positive correlation between PCB and OH-PCB concentrations (r = 0.67, p < 0.001), suggesting the possible concentration-dependent induction of CYP enzymes. The three porpoise species may have exceptionally low metabolic capacities compared with other marine and terrestrial mammals, because low OH-PCB/PCB concentration ratios were found, which were 0.0016 for Dall's porpoises, 0.0013 for harbor porpoises, and 0.00058 for finless porpoises. Distinct differences in the OH-PCB congener patterns were observed for the three species, even though they are taxonomically closely related. (c) 2013 Elsevier Ltd. All rights reserved.
• Effects of stratification and misspecification of covariates on species distribution models for abundance estimation from virtual line transect survey data

  Yasutoki Shibata, Takashi Matsuishi, Hiroto Murase, Koji Matsuoka, Takashi Hakamada, Toshihide Kitakado, Hiroyuki Matsuda

  FISHERIES SCIENCE 79 (4) 559 - 568 0919-9268 2013/07 [Refereed][Not invited]
   

  The aim of this study was to examine the effects of stratification of the survey region on the performance of species distribution models (SDMs) described by generalized linear models or generalized additive models when estimating school abundance by using a line transect survey. True covariates that define spatial school distribution are not always obtainable explanatory variables. When the true covariates differ from explanatory variables in the model, the explanatory variables are determined to be misspecified. We evaluated the performance of SDMs in abundance estimation with misspecified covariates by using dummy datasets for which the true abundance was known. Simulated replicates of spatial distributions of a whale school and sighting data were generated from possible scenarios motivated by the spatial school distribution of Antarctic minke whales Balaenoptera bonaerensis. This distribution was obtained from the Japanese Whale Research Program under Special Permit in the Antarctic. Our results showed that the relative bias of the abundance estimators was large when covariates were misspecified and a survey region was stratified. Although stratification of the survey region is intended to produce a conventional line transect estimator with a smaller variance than that of non-stratified survey region, it also acts to increase the bias of the abundance estimate obtained from SDMs.
• Fish diversity and abundance of Lake Tanganyika: comparison between protected area (Mahale Mountains National Park) and unprotected areas

  Sweke,EA, Assam,JM, Matsuishi,T, Ch, e,A

  International Journal of Biodiversity 269141 (269141) 1 - 10 2013/02 [Refereed][Not invited]
   

  High biodiversity is the most remarkable characteristic of Lake Tanganyika including vertebrates, invertebrates, and plants. A few protected areas have been created along the lake to protect its biodiversity. However, limited studies have been carried out to ascertain their effectiveness. The current study aimed at assessing and comparing fish diversity and abundance of Lake Tanganyika in a protected area (Mahale Mountains National Park (MMNP)) and unprotected areas surrounding it. The data were collected in the near shore zone at 5?m and 10?m depths using stationary visual census (SVC) technique. The protected area recorded higher fish richness and abundance than unprotected areas. It was concluded that the protected area is effective in conserving the fish diversity and abundance of the lake. However, more studies should be carried out regularly to explore the efficacy of the protected area in conservation of aquatic biodiversity and abundance.
• 津軽海峡におけるカマイルカの推定来遊個体数と餌生物豊度の関係

  尾崎司宙, 黒田実加, 富安信, 伊藤啓仁, 岩井卓也, 高木優樹, 水野裕菜, 森光雄大, 岩原由佳, 松田純佳, 松石隆

  日本セトロジー研究 日本セトロジー研究会 (22) 1 - 4 1881-3445 2012/08/01 [Not refereed][Not invited]
  
• Stomach contents of Dall's porpoise Phocoenoides dalli stranded in Hokkaido

  Matsuda A, Matsuishi T

  Japan Cetology 日本セトロジー研究会 (22) 9 - 13 1881-3445 2012/08 [Refereed][Not invited]
   

  Dalls’s porpoise, Phocoenoides dalli stranded in Hokkaido were studied for their stomach contents. Seventeen individuals were reported from May to July in 2008. This is biggest number to have been reported within such a short period of time in the history of stranding recorded in the紅 白 Nine and ten individuals were reported in 1997 and 2005 respectively but neither clear details nor stomach contents were recorded. The paper reported the stomach contents of Dall’s porpoise and clarified the species of their prey. The stomachs were taken from thirteen individuals. Six individuals had empty stomachs. These individuals were small in size compared to individuals with partly filled or filled stomachs. To investigate the quantitative composition of the stomach contents, frequency of occurrences and composition of the prey species were determined. The stomach contents revealed that the porpoises fed mainly on Gonatidae species. This was different from the previous studies in which walleye pollock Theragra chalcogramma was the main prey. In this study, stomach contents showed that walleye pollock was not a prey in any Dall’s porpoise. This suggested that the main prey species have changed probably due to decrease in population of walleye pollock in recent years.
• The relationship between the estimated migrated population of Pacific white-sided dolphins Lagenorhynchus obliquidens and abundance of prey species

  Ozaki K, Kuroda M, Tomiyasu M, Ito T, Iwai T, Takagi Y, Mizuno H, Morimitsu K, Iwahara Y, Matsuda A, Matsuishi T

  Japan Cetology 日本セトロジー研究会 (22) 1 - 4 1881-3445 2012/08 [Refereed][Not invited]
   

  Pacific white-sided dolphin (PWS) Lagenorhynchus obliquidens is the most common cetacean species found in the Tsugaru Strait, Japan. It is suggested that PWS use this strait as a feeding ground and Japanese anchovy is one of the major prey species. PWS also feed Walleye Pollock, Squids and Salmonidae. The population of PWS migrated in the Tsugaru Strait fluctuate every year. In this study, the PWS population migrated in the Tsugaru Strait from 2004 to 2009 were estimated. Moreover, the relationship between the population of PWS and an abundance of Japanese anchovies was examined. The estimated population fluctuated between 2,000 and 8,000 every year. A significant correlation was found between the PWS population and the abundance of Japanese anchovy Pacific stock (r^2= 0.75, P=0.0249). Regression analysis between the PWS population and catches of other prey species, such as Walleye Pollock, Cherry salmon, Japanese common squid and Japanese anchovies in the Tsugaru Strait, and the surface water temperature were also conducted. As a result, no significant correlations were found. The fluctuation of PWS population migrated in the Tsugaru Strait was affected by the population of Japanese anchovies in the Pacific Ocean. It suggested that the majority of PWS in the Tsugaru Strait are migrated from Pacific Ocean.
• Accumulation of Halogenated Phenolic Compounds in Small Toothed Whales

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Matsuishi T, Amano M, Tanabe S

  Interdisciplinary Studies on Environmental Chemistry-Environmental Pollution and Ecotoxicology 187 - 192 2012 [Refereed][Not invited]
   

  Proceedings of Interdisciplinary Studies on Environmental Chemistry Vol. 6 Environmental Pollution and Ecotoxicology, Eds., M. Kawaguchi, K. Misaki, H. Sato, T. Yokokawa, T. Itai, T. M. Nguyen, J. Ono and S. Tanabe
• A comparative study on temporal trends of trace elements in harbor porpoise (Phocoena phocoena) from coastal waters of North Japan

  Yasuda Y, Hirata S, Itai T, Isobe T, Matsuishi T, Yamada TK, Tajima Y, Takahashi S, Tanabe S

  Interdisciplinary Studies on Environmental Chemistry-Environmental Pollution and Ecotoxicology 151 - 159 2012 [Refereed][Not invited]
   

  Proceedings of interdisciplinary studies on environmental chemistry Vol. 6 Environmental pollution and ecotoxicology, Eds., M. Kawaguchi, K. Misaki, H. Sato, T. Yokokawa, T. Itai, T. M. Nguyen, J. Ono and S. Tanabe
• Accumulation of anthropogenic and natural origin organohalogen compounds in three porpoise species

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Matsuishi T, Amano M, Tanabe S

  Organohalogen Compounds 73 1709 - 1712 2011/12 [Refereed][Not invited]
   

  Proceedings of the dioxin2011 in Brussels, Belgium
• Contamination status of brominated flame retardants in Harbor (Phocoena phocoena) and Dall's (Phocoenoides dalli) porpoises from Hokkaido, Japan

  Isobe T, Saito A, Matsuishi T, Yamada TK, Tajima Y, Tanabe S

  Organohalogen Compounds 73 1721 - 1724 2011/12 [Refereed][Not invited]
   

  Proceedings of the dioxin2011 in Brussels, Belgium
• Population estimation of Pacific white-sided dolphins Lagenorhynchus obliquidens in Tsugaru Strait, Japan

  Matsuda,A, Iwahara,Y, Kobayashi,S, Kaneko,N, Suzuki,R, Matsuishi,T

  Japan Cetology (21) 15 - 18 2011/10 [Refereed][Not invited]
   

  カマイルカLagenorhynchus obliquidensは津軽海峡において最も多く観察される鯨類である。2004年〜2010年に津軽海峡で行われた目視調査より得られた発見記録にもとづき、ライントランセクト法によって津軽海峡への本種の来遊個体数の規模を推定した。来遊個体数の推定は、カマイルカの来遊期間である3月〜7月と、来遊盛期である5月の2種類の期間について行った。データ数を確保するため、2004年〜2010年のデータをプールして、平均来遊個体数を推定した。その結果、3月〜7月には、有効探索幅111.75m、平均4,482個体（CV＝0.192）、5月には有効探索幅109.45m、平均9,592個体（CV＝0.251）となった。太平洋側と日本海側におけるカマイルカの個体数推定に関する既往の研究と比較したところ、津軽海峡に来遊するカマイルカはそれらの一部であり、大部分は別の経路を利用して回遊していることが示唆された。
• Value-per-recruit analysis of bighand thornyhead Sebastolobus macrochir caught off the Pacific coast of northern Honshu, Japan

  Pavarot Noranarttragoon, Yuji Ueda, Tsutomu Hattori, Takashi Matsuishi

  FISHERIES SCIENCE 77 (4) 497 - 502 0919-9268 2011/07 [Refereed][Not invited]
   

  The yield-per-recruit (YPR) analysis has been used to assess growth overfishing of exploited fish stocks. Since the ex-vessel price per weight widely depends on the size of the fish, the result of the YPR does not imply the revenue. The value-per-recruit (VPR) analysis, which is an economic expansion of the YPR analysis, was conducted for bighand thornyhead Sebastolobus macrochir caught off the Pacific coast of northern Honshu, Japan. The results showed that, for the current age at first capture (t (c) = 3), the current fishing mortality (F = 0.12) was close to the optimum level. However, for the current F, optimum t (c) in the VPR model was 8 years and would lead to a 47% increase compared to the current revenue. The maximum YPR was obtained at t (c) = 6 years, but the revenue at t (c) = 6 only gave a 20% increase in the maximum revenue. The difference was caused by the size dependency of the ex-vessel price per weight. The VPR model would generate fisheries management plans with both economical and biological consideration and would help in making general consensus of fisheries management strategies.
• Stranding network and its scientific significance

  Takashi Matsuishi

  NIPPON SUISAN GAKKAISHI 77 (2) 296 - 299 0021-5392 2011/03 [Refereed][Not invited]
  
• Accumulation of brominated flame retardants in harbour and Dall's porpoises from Hokkaido

  Saito A, Isobe T, Matsuishi T, Yamada TK, Tajima Y, Tanabe S

  Interdisciplinary Studies on Environmental Chemistry-Marine Environmental Modeling & Analysis 221 - 228 2011 [Refereed][Not invited]
   

  In the present study, stranded or by-caught Harbour porpoises (Phocoena phocoena) and Dall 's porpoises (Phocoenoides dalli) were collected from Hokkaido, Japan, and brominated flame retardants (PBDEs and HBCDs) and Polychlorinated bipl1enyls (PCBs) concentrations in their blubber were measured. All the target compounds were detected in all the specimens. Levels of PCBs were significantly higher thar1 those of PBDEs and HBCDs. PCBs, PBDEs and HBCDs levels in harbour porpoises of the present study were lower than those in Dall's porpoises (p=0.03). This result might reflect the difference in habitat and feeding behavior between these species. Additionally, HBCDs levels in harbor porpoises and Dall's porpoises analyzed in this study were higher than finless porpoises from Seto Inland Sea, suggesting contamination by HBCDs is more serious in Hokkaido. To evaluate the temporal trends, blubber samples of adult male harbour porpoises and Dall's porpoises collected in 1985- 2009 and 1980- 2008 were analyzed. Concentrations of PCBs in both species did not sl1ow any trend during 1980- 2009. In contrast, remarkable increasing trend of HBCDs in Harbour porpoise was observed. PBDEs and HBCDs concentrations ir1 Dall's porpoises also increased during the survey period. These results suggest growing consumption of these chemicals in Japan and surrounding countries in recent years.Proceedings of interdisciplinary studies on environmental chemistry Vol. 5 Modeling and analysis of marine envrionmental problems, Koji Omori, Xinyu Guo, Naoki Yoshie, Naoki Fujii, Itsuki C. Handoh, Atsuhiko Isobe, and Shinsuke Tanabe, (Eds)
• Inter-species differences of hydroxylated polychlorinated biphenyls (OH-PCBs) in the blood of small cetaceans

  Ochiai M, Nomiyama K, Isobe T, Matsuishi T, Yamada TK, Tanabe S

  Interdisciplinary Studies on Environmental Chemistry-Marine Environmental Modeling & Analysis 213 - 220 2011 [Refereed][Not invited]
   

  The present study investigated the accumulation features and metabolic capacities of PCBs and OH-PCBs in the blood of harbor porpoises, Dall's porpoises and finless porpoises stranded or bycaught along the Japanese coastal waters. OH-PCBs concentrations were the highest in Dall's porpoise (61 pg/g wet wt), followed by finless porpoise (23 pg/g wet wt) and harbor porpoise (14 pg/g wet wt), and the level in Dall's porpoise was significantly higher than that of harbor porpoise (p < 0.05). There was a positive correlation between PCBs and OH-PCBs concentrations (r = 0.62, p < 0.001), suggesting possible induction of CYP enzymes in a concentration dependent manner. Distinct OH-PCB congener patterns were observed among the three porpoise species. These species specific accumulation patterns are possibly due to the differences in their metabolic capacity for PCBs, such as the induction of CYP enzymes, substrate specificity in phase I and II enzymes and/or affinity of OH-PCB congeners to Transthyretin (TTR).
  Proceedings of interdisciplinary studies on environmental chemistry Vol. 5 Modeling and analysis of marine envrionmental problems, Koji Omori, Xinyu Guo, Naoki Yoshie, Naoki Fujii, Itsuki C. Handoh, Atsuhiko Isobe, and Shinsuke Tanabe, (Eds)
• Mitochondrial DNA phylogeography of the harbour porpoise Phocoena phocoena in the North Pacific

  Mioko Taguchi, Susan J. Chivers, Patricia E. Rosel, Takashi Matsuishi, Syuiti Abe

  MARINE BIOLOGY 157 (7) 1489 - 1498 0025-3162 2010/07 [Refereed][Not invited]
   

  Genetic structure and phylogeography of the harbour porpoise Phocoena phocoena in the North Pacific were examined using 358 bps sequences from the 5' end of the mitochondrial DNA control region including those reported previously and newly obtained from the west Pacific. AMOVA and pairwise population phi (st) estimates clearly revealed genetic differentiation between an east/south and a north/northwest group with the break along the Pacific Rim at British Columbia. In addition, nested clade phylogeographical analysis, neutrality tests, mismatch distribution analysis, genetic diversities and Mantel test, suggested that the observed genetic structure might have been influenced by contiguous range expansion with restricted gene flow in the direction from south to north along the North American coasts and east to west along the Pacific Rim in the middle to late Pleistocene.
• Elucidation of ecosystem attributes of an oligotrophic lake in Hokkaido, Japan, using Ecopath with Ecosim (EwE)

  Md. Monir Hossain, Takashi Matsuishi, George Arhonditsis

  ECOLOGICAL MODELLING 221 (13-14) 1717 - 1730 0304-3800 2010/07 [Refereed][Not invited]
   

  The fishing practices in the oligotrophic Lake Toya, Hokkaido, Japan, have profound implications in the ecosystem sustainability. The status of the sockeye salmon (Oncorhynchus nerka) population has become a serious concern among the lake managers and policy makers during the last decades. While the decline of the sockeye salmon population has been well documented in Lake Toya, there is considerable uncertainty with regards to the impact on the broader system dynamics. In this study, our objective is to address this knowledge gap by undertaking a synthesis of the Lake Toya food web using the mass-balance modeling software Ecopath with Ecosim (EWE). Our primary research question is to examine the repercussions of the declining sockeye salmon population on the trophic dynamics of the lake. Namely, we assess if there are any competing species that might have benefited from the decrease of sockeye salmon standing biomass and to what extent do these changes propagate through the Lake Toya food web? Our analysis pinpoints the critical role of the Japanese smelt (Hypomesus transpacificus nipponensis) in the system, which demonstrates a wide range of effects on several functional groups at both higher and lower trophic levels in Lake Toya. In particular, being a substantial portion of the masu salmon (Oncorhynchus masou) and adult sockeye salmon diets, the Japanese smelt has a positive impact on the top predators of the system. Amphipods, insects, and shrimp strongly benefit from the autochthonous and allochthonous organic matter in the system, while the tight coupling between phytoplankton and zooplankton seems to be particularly critical for the integrity of the Lake Toya food web. Whereas the values of the different ecosystem attributes (e.g., primary production/biomass, biomass/total throughput, system omnivory index, amount of recycled throughput, Finn's cycling index) provide evidence that Lake Toya is an immature system, we note that the internal redundancy and the system overhead estimates suggest that the lake possesses substantial reserves to overcome external perturbations. We also examined the effects of a variety of fishing policies on the biomass of masu salmon and adult sockeye salmon, which verify the belief that the adult sockeye population is quite fragile with high likelihood to collapse. Our analysis also predicts that sockeye will not rebound unless the fishing pressure exerted is substantially reduced (>50% of the reference levels used). Masu salmon seems to benefit under all the scenarios examined indicating that the intensity of the current fishing activities is significantly lower than its biomass accumulation rate in the system. (C) 2010 Elsevier B.V. All rights reserved.
• Temporal change of school size on Pacific white-sided dolphin Lagenorhynchus obliquidens in the Tsugaru Strait, Japan

  Ono Y, Sahashi G, Nishizawa B, Yamada W, Shibata Y, Matsuishi T

  Japan Cetology 日本セトロジー研究会 (20) 13 - 15 1881-3445 2010/06 [Refereed][Not invited]
   

  From the sighting survey in the TsugaruStrait, which is located betweenHokkaido and Honshu in northern Japan, it is known that Pacific white-sided dolphin (PWS) is the most common cetacean species in this strait, and is mostly observed from April to June. In this study, to show temporal changes of school size of PWS in the strait, the data were analyzed which is obtained from sighting surveys on a ferry between Hakodate,Hokkaido and Aomori, Honshu from May 2003 to September 2009 The school size of PWS in March to July was analyzed by using smooth spline. Its school size was large in April when PWS came to the strait, small in May to the beginning of June whenP WSf ed on prey in the strait,a nd large in mid-June again when PWS went out of the strait. These result supported the past study.
• Seasonal distribution of harbour porpoise (Phocoena phocoena) in Japanese waters inferred from stranding and bycatch records

  Mioko Taguchi, Hajime Ishikawa, Takashi Matsuishi

  MAMMAL STUDY 35 (2) 133 - 138 1343-4152 2010/06 [Refereed][Not invited]
   

  Little is known about the biology of harbour porpoises (Phocoena phocoena) around Japanese waters. This study estimates the seasonal distribution of harbour porpoises in Japan using 240 stranding and bycatch records from 1966 to August 2009 deposited at the Institute of Cetacean Research, Tokyo, the Stranding Network Hokkaido, Hokkaido, and records summarized in a previous study. Over 70% of all the records were bycatch from use of three types fishing gear: large set-nets, other type set-nets, and gill nets. Most of the bycatch records were derived from Usujiri, Hokkaido, where a regular monitoring survey on harbour porpoises caught incidentally by large set-nets has been conducted since the 1980s. These records showed that harbour porpoises migrate to the coast of Honshu (mainland of Japan) in the winter, and move north in the summer. Their latitudinal range coincided with the sea surface temperature (SST) range between 6 and 17 degrees C. Additionally, the stranding and bycatch records which were found only from April to June in Funka Bay, Hokkaido suggested that Funka Bay is used only for a few months in spring. Overall, the present study clarifies the finer seasonal distribution of harbour porpoise around Japan, and its strong dependence on SST.
• Polychlorinated biphenyls (PCBs) and hydroxylated PCBs (OH-PCBs) in three porpoise species: accumulation features and metabolic capacity

  Ochiai M, Nomiyama K, Isobe T, Matsuishi T, Yamada TK, Tanabe S

  Organohalogen Compounds 72 1027 - 1030 2010/02 [Refereed][Not invited]
   

  Proceedings of the dioxin2010 in San Antonio, USA
• Migration of Pacific white-sided dolphin Lagenorhynchus obliquidens in the Tsugaru Strait, Japan

  Horimoto T, Kaneko T, Shibata Y, Matsuishi T

  Japan Cetology (19) 13 - 15 1881-3445 2009/10 [Refereed][Not invited]
   

  In spring, the Pacific white-sided dolphin (PWS) comes to the Tsugaru Strait and is observed mostly from April to June. In this study, we analyzed the data of sighting surveys conducted from ferry vessels between Hakodate and Aomori from May 2003 to August 2008, and examined the migration of PWS in the strait. The distribution of PWS varied during this period. In March, April and early May, PWS were observed in the northern part of the Tsugaru Strait. Between mid-May and mid-June, the distribution of PWS expanded to cover all the Tsugaru Strait. Between late June and July, PWS were observed in the southern part of the Tsugaru Strait. Subsequently, PWS were not observed. This migration pattern was found in all survey years.
• Application of cohort analysis to large terrestrial mammal harvest data

  Mayumi Ueno, Takashi Matsuishi, Erling Johan Solberg, Takashi Saitoh

  MAMMAL STUDY 34 (2) 65 - 76 1343-4152 2009/06 [Refereed][Not invited]
   

  Cohort analysis (also known as virtual population analysis) is a method of population reconstruction from age-specific harvest data. Because cohort analysis requires data over a whole life span to reconstruct a population for a single year, this method is impracticable for longer-lived animals. Three models are routinely combined by fisheries scientists to make cohort analysis more cost effective and to provide real-time estimates of population size; these models may be applied to large terrestrial mammal harvest data. Each model has unique assumptions about hunting mortality rates or age distributions, and the reliability of estimates depends on meeting these assumptions. In this study, we first tested previously used assumptions for these models through an analysis of long-term moose (Alces alces) harvest data, followed by an examination of the robustness of estimates for each moose age class. We developed practical ways to achieve more realistic assumptions for two of three models and showed that meeting these assumptions was more important in estimations of large terrestrial mammal population parameters than for fish population parameters. Therefore, we recommend compliance with assumptions of the three models for more reliable population estimates of large terrestrial mammals.
• Elucidation of ecosystem attributes using ecopath with ecosim (EWE): Application to an oligotrophic lake in Hokkaido, Japan

  Hossain MM, Matsuishi T, Arhonditsis G

  Ecopath 25 Years 166 - 167 2009 [Refereed][Not invited]
   

  Proceedings of the symposium "Ecopath 25 years: conference and workshops", 30 August - 1 September, 2009, Vancouver, Canada
• Seasonal change of the appearance of Pacific white-sided dolphin, Lagenorhynchus obliquidens in the Tsugaru Strait, Japan

  Kitamura,S, Kurihara,Y, Shibata,Y, Matsuishi,

  Japan Cetology (18) 13 - 16 2008/10 [Refereed][Not invited]
   

  カマイルカは春に津軽海峡に来遊し、一年のうちで4月、5月に最も多く観察される。本研究では2003年5月から2007年8月までのフェリーからの鯨類目視調査記録を分析し、津軽海峡のカマイルカの来遊時期の経年変化を検討した。カマイルカの来遊時期は2003年から2007年まで年々早くなっていた。カマイルカの来遊時期に影響を及ぼすと考えられる、津軽海峡の水温や、餌となるカタクチイワシの来遊時期を検討した結果、これらはカマイルカの来遊時期と関係が示唆され、従来の研究結果を支持した。
• Evaluation of stock management procedures for walleye pollock in northern waters of the Sea of Japan using a simulation

  Hiroshi Yamaguchi, Takashi Matsuishi

  FISHERIES SCIENCE 74 (5) 955 - 969 0919-9268 2008/10 [Refereed][Not invited]
   

  To evaluate walleye pollock stock management procedures in the northern waters of the Sea of Japan, 30-year population dynamics, including uncertainties, were forecast. Errors in current stock size estimation, variability in future recruitment and changes in future fishing mortalities were incorporated. Results of virtual population analysis (VPA) from resampled catch-at-age data with bootstrap methods was used as the current stock size estimation with uncertainty. Performances of each scenario were evaluated using conservation, utilization, stability and reliability factors. Twenty-two management scenarios and continuing the current fishing mortality were evaluated. Scenarios with minor regulation changes and continuing the current fishing mortality showed poor stock conservation performances. Scenarios with minor regulation changes produced good short-term but poor long-term utilization. Stabilities were poor in continuing the current fishing mortality and fishing ban scenarios. Reliability in all scenarios after 30 years was smaller than in continuing the current fishing mortality; however, small differences among scenarios were observed. The simulation results indicated that multilateral assessment is needed to evaluate the management candidates. Uncertainty caused by recruitment variability mostly affected future population dynamics. The role of simulations in the production of effective scientific advice is discussed.
• Sighting survey of cetaceans in the Tsugaru Strait, Japan

  Ryusuke Sudo, Maya Uranishi, Takuma Kawaminami, Mika Ihara, Satoshi Iizuka, Mari Ueda, Md Monir Hossain, Takashi Matsuishi

  FISHERIES SCIENCE 74 (1) 211 - 213 0919-9268 2008/02 [Refereed][Not invited]
   

  津軽海峡の鯨類に関する知見は極めて乏しい。本研究では津軽海峡の鯨類の鯨種，それらの出現頻度を明らかにするため，2003 年 4 月から 2004 年 11 月まで函館・青森間を運行するフェリーからの目視調査を実施した。58 日 6,102 km の目視調査により，合計 415 群 3,010 個体の鯨類の発見があった。発見はカマイルカが優占し，マイルカ，イシイルカ，ハンドウイルカ，ネズミイルカ，コビレゴンドウ等が発見された。カマイルカの来遊のピークは 5〜6 月の年一回であった。
• RNA : DNA ratios of calanoid copepods from the epipelagic through abyssopelagic zones of the North Pacific Ocean

  Tsutomu Ikeda, Fumikazu Sano, Atsushi Yamaguchi, Takashi Matsuishi

  AQUATIC BIOLOGY 1 (2) 99 - 108 1864-7790 2007/12 [Refereed][Not invited]
   

  As indices of protein synthetic activity, RNA:DNA ratios were determined for > 80 copepod species caught from the epipelagic (0 to 500 m), mesopelagic (500 to 1000 m), upper bathypelagic (1000 to 2000 m), lower bathypelagic (2000 to 3000 m) and abyssopelagic (3000 to 5000 m) zones of the North Pacific Ocean. The copepods from the epipelagic zone exhibited higher RNA:DNA ratios compared to those from the mesopelagic through the abyssopelagic zones. Parameters (,other than the depth zones) affecting the ratios were explored, by grouping the copepods into 4 developmentalstage/sex categories (C4, C5 and C6 females and males), 3 feeding types (carnivore, detritivore and suspension feeder), or 2 phylogeny-related reaction-speed groups in which detecting the presence or absence of myelinated sheath enveloping axons indicated fast or slow reacting species, respectively. Stage and sex data showed that RNA:DNA ratios were greater in C6 females than in other groups. Among the feeding-type data, carnivores exhibited the lowest RNA:DNA values. Reaction-speed data indicated that slow-reacting species are characterized by lower ratios than fast-reacting species. Taking into account all of these biological parameters as independent variables, stepwise multiple regression analysis revealed that the pattern of the reduction in RNA:DNA ratios toward greater depths was still valid. The typical interzonal copepods, Neocalanus spp., showed that non-feeding C6 females of N. plumchrus and N. flemingeri collected from the mesopelagic through the abyssopelagic zones had high RNA:DNA ratios comparable to those of the epipelagic-zone copepods. The present results, combined with recent reports on the depth-related decline in the metabolism and body nitrogen content of pelagic copepods downward, suggest overall slower life modes of deeper-living species. We think the 'predation-mediated selection' hypothesis explains this 'slow' life more effectively than limited food supply or colder temperatures in the deep sea.
• Effects of sampling errors on abundance estimates from virtual population analysis for walleye pollock in northern waters of Sea of Japan

  Hiroshi Yamaguchi, Takashi Matsuishi

  FISHERIES SCIENCE 73 (5) 1061 - 1069 0919-9268 2007/10 [Refereed][Not invited]
   

  Effects of sampling errors on abundance estimates from virtual population analysis (VPA) were quantified with the bootstrap method for stock of walleye pollock in the the Sea of Japan. In the bootstrap method, individual fish measurements were resampled. A total of 1000 bootstrap samples were produced for each year from 1991 to 2001. The coefficients of variation (CV) of catch at age in 2001 ranged 6.1-33.1%. The CV of an abundance estimate in 2001 ranged 9.0-35.7%. Abundance estimates of the oldest age and the latest year, which had larger CVs than the other estimates, were sensitive to sampling errors. Effects of sampling errors became smaller when the catch at age had been accumulated over a few years. Although VPA includes various types of errors, only the sampling errors have room for improvement in reality. Quantifying the effect of sampling error on VPA estimates is essential for sound and efficient stock management, and is emphasized in this study.
• Modelling stock-recruitment relationships to examine stock management policies

  A. Kimoto, T. Mouri, T. Matsuishi

  ICES JOURNAL OF MARINE SCIENCE 64 (5) 870 - 877 1054-3139 2007/07 [Refereed][Not invited]
   

  Simulation studies are used widely for fish stock management. In such studies, forecasting future recruitment, which can vary greatly between years, has become an essential part of evaluating management strategies. We propose a new forecasting algorithm to predict recruitment for short- or medium-term stochastic projections, using a stock- recruitment relationship. We address cases in which the spawning stock has dropped below previously observed levels, or in which predicted recruitment is situated close to the maximum observed level. The relative prediction error of seven existing algorithms was compared with that of the new model using leave-one-out cross-validation for 61 data sets from ICES, the Japanese Fisheries Agency, and PICES. The new algorithm had the smallest prediction error for 49 of the data sets, but was slightly biased by the precautionary treatment of predictions of high recruitment.
• Seasonal and geographical distribution of Pacific white-sided dolphins (Lagenorhynchus obliquidens) in the Tsugaru Strait

  Shibata,Y, Katahira,H, Shinohara,S, Suzuki,H, Okada,Y, Ueda,M, Uyama,T, Iizuka,S, Matsuishi,T

  Japan Cetology (17) 11 - 14 0918-3930 2007/07 [Refereed][Not invited]
   

  カマイルカは津軽海峡において最も多く発見される鯨種である。本研究では2003年5月から 2006年2月までのフェリーからの鯨類の目視発見記録を分析し、津軽海峡内でのカマイルカの 季節的・地理的分布について考察した。発見記録から鯨類およびカマイルカの発見群数、遭遇率 を算出し、津軽海峡一陸奥湾聞を北からAB C.Dの4つの区域に分け、この区分を用いて月別発見群数を計数し分布推移を調べた。カマイルカの出現ピークは4〜6月であった。また、区域B, C,Dでは5月に遭遇率が最高値をとり、6月は減少した。津軽海峡での季節変化として、津軽海 峡を通過するカマイルカの大多数が春季に来遊し、夏季以降には稀にしか来遊しないと考えられ た。分布推移として、4月〜5月に日本海から津軽海峡に入ってきたカマイルカの多くは、一端、 陸奥湾入口付近〜陸奥湾内に滞留した後、津軽暖流水に乗って太平洋へと移動するものと推察された。
• Chemical composition and energy content of deep-sea calanoid copepods in the Western North Pacific Ocean

  Tsutomu Ikeda, Atsushi Yamaguchi, Takashi Matsuishi

  DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 53 (11) 1791 - 1809 0967-0637 2006/11 [Refereed][Not invited]
   

  Condition factor index [CFI = 1000 x DW/(PL)(3); DW: dry weight, PL: prosome length], water content, carbon (C), nitrogen (N), ash and energy content were determined on a total of 69 copepod species caught from the mesopelagic (500-1000m), upper-bathypelagic (1000-2000m), lower-bathypelagic (2000-3000m) and abyssopelagic (3000-5000m) zones of the western subarctic Pacific. Resultant data were grouped into these four sampling zones, four developmental stage/sex categories (C4, C5 and C6 females and males), three feeding types (carnivore, detritivore and suspension feeder), or two reaction speed groups by the presence/absence of myelinated sheath enveloping axons (fast and slow reacting species). Zone-structured data showed the overall ranges were 3.8-4.6 mm for PL, 1.6-2.6 mg for DW, 21.4-25.0 for CFI, 75.0-78.6% of wet weight (WW) for water, 51.3-53.7% of DW for C, 7.7-8.8% of DW for N, 6.2-7.0 (by weight) for C/N, 6.9-9.6% of DW for ash and 25.3-27.4 J mg(-1) DW for energy. Among these components, N and ash exhibited significant between-zone differences characterized by gradual decrease downward for the former, and only the upper-bathypelagic zone > abyssopelagic zone for the latter. Stage/sex-structured data showed no significant differences among them, but energy content of C5 was higher than that of C6 females. From the analyses of feeding type-structured data, carnivores were shown to have lower water, N, ash, but higher C, C/N and energy contents than suspension feeders do. Reaction speed-structured data indicated that slow-reacting species have significantly higher water but lower CFL C, N and energy contents than fast-reacting species. Designating these grouping criteria, PL and DW as independent variables, the attributes of these variables to the CFI, chemical composition or energy contents were evaluated by stepwise-multiple regression analysis, showing the most pronounced effect of suspension-feeder, followed by the presence of myelinated sheath, DW, C6 females and the abyssopelagic zone. Further analysis of zone-structured data, by adding epipelagic copepod data from identical thermal habitats (Arctic/Antarctic waters), revealed a more marked decline in N content from the epipelagic zone to the abyssopelagic zone, accompanied by an increase in C/N ratios downward. The decline in N ( = protein or muscle) contents with depth cannot be explained by the "visual interactions" hypotheses being proposed for the metabolism of pelagic visual predators, but is consistent with the "predation-.mediated selection" hypothesis for the metabolism of pelagic copepods. (c) 2006 Elsevier Ltd. All rights reserved.
• Notes on the ovarian histology of a young harbor porpoise, Phocoena phocoena, caught in Takashima Hokkaido, Sea of Japan

  Honma,Y, Ushiki,T, Takeda,M, Matsuishi,T

  Japan Cetology (15) 13 - 19 2006/10 [Refereed][Not invited]
   

  A histological examination was carried out on a young harbor porpoise, Phocoena phocoena (♀), 1.3m long, caught in a set net installed off Takashima, Otaru City, Hokkaido, facing the Sea of Japan. The formalin-preserved left lobe of the ovary was 13mm long and 0.2g in weight, the right lobe being 20mm and 0.2g, respectively. Both lobes were smooth, flat and disc-shaped, and revealed similar microscopic conditions which confirmed the young age of the animal. The cortical region comprised a number of primordial-and primary follicles, and few secondary follicles, whereas the medullary region, consisting of a large amount of interstitial tissue, included a few vesicular and many atretic follicles, in association with spiral arteries. However, no Graaffian follicles were encountered, and the uterine glands were simple and underdeveloped.
• Community based fisheries management as the future fisheries management option for small-scale fisheries of Bangladesh

  Hossain,MM, Islam,MA, Ridgway,S, Matsuishi,T

  Kokusai Gyogyo Kenkyu 7 (1-2) 67 - 79 2006/09 [Not refereed][Invited]
   

  Fisheries resources are resource is a great natural asset to this planet and ensuring the responsible use of these resources can enrich the lives of its people. However, global fishery resources are under high and mounting pressure which is severe, particularly in the developing countries. Until recently, traditional fisheries management failed to prevent over-exploitation and degradation and often ignored the socio economic aspects in the case of small-scale fisheries. Moreover, many developing countries face major constraints in capacity and the ability to promote implementation of long-term sustainable policies. International concern about people and their resources has significantly impacted thinking about how fisheries should be managed and the need for greater responsibility by fishers and managers is becoming more frequently heard. Bangladesh, a reverine developing country of South East Asia where more than 70% of the population lives in flood plain and coastal situations, fisheries resources suffer from severe over-exploitation so resource protection is important in sustaining the contribution of aquatic products to food security and livelihoods for the people. This situtation urgently requires effective management measures. This This can be best achieved by involving all user groups and the national fisheries agency, as the leader of the managers, for long term success oriented ultimately towards societal well-being, and based upon economic and resource sustainability. The purpose of this paper is to provide background information on the fisheries of Bangladesh and to justify the implementation of community-based fisheries management (CBFM) as vital if sustainable solutions are to be found.
• Metabolism of mesopelagic and bathypelagic copepods in the western North Pacific Ocean

  Tsutomu Ikeda, Fumikazu Sano, Atsushi Yamaguchi, Takashi Matsuishi

  MARINE ECOLOGY PROGRESS SERIES 322 199 - 211 0171-8630 2006/09 [Refereed][Not invited]
   

  Respiration (= oxygen consumption) rates and electron transport system (ETS) enzyme activities in conjunction with body carbon and nitrogen composition (for respiration) or protein (for ETS) were determined for over 50 copepod species from the mesopelagic (M; 500 to 1000 m), upper-bathypelagic (UB; 1000 to 2000 m) and lower-bathypelagic (LB; 2000 to 3000 m) zones of the western subarctic Pacific. Calculated specific respiration rates (SR, a fraction of body carbon respired) at in situ temperatures (3, 2 and 1.5 degrees C for the M, UB and LB zones, respectively) were greater for the M zone copepods (mean: 1.1% body C d(-1)) than that for the UB and LB zone copepods (both 0.6% body C d(-1)). Respiration rates adjusted to those at 1 degrees C by using a Q(10) value (2.0), and to those of specimens with 1 mg body nitrogen by using a body mass exponent (0.8) (e.g. adjusted metabolic rates, AMR, in mu l O-2 (mg body N)(-0.8) h(-1)) were also greater for the M zone copepods than for the UB and LB zone copepods. ETS activities, measured as mu l O-2 (Mg protein)(-0.8) h(-1), showed the same depth-related decline from the M zone to the LB zone. Stepwise regression analysis revealed that stage/sex, feeding type and/or reaction speeds (as judged by the presence/absence of myelin sheath enveloping axons) of copepods were possible additional variables affecting their respiration rates and ETS activities. The reduction in respiration rates and ETS activities from the M zone to the UB or LB zone is more pronounced when respiration rate data on Arctic/Antarctic epipelagic copepods is added; the same is true for ETS activities when respiration rate data is added from copepods dominant in the subarctic Pacific. The present results are compared with those of micronektonic crustaceans and fishes reported for specimens collected from 500 to 2000 m in other regions and discussed in the light of the 'visual interactions' hypothesis.
• The present state of imposex in several edible whelks in three coasts along Hokkaido, Japan

  Fujinaga K, Ilano AS, Hayakari C, Oyama Y, Matsuishi T, Nakao S

  Aquaculture Science 水産増殖談話会 54 (2) 179 - 185 0371-4217 2006/06/20 [Refereed][Not invited]
   

  along the coast of Hokkaido, Japan was examined based on RPSI, imposex frequency, and sex ratio. The extent of imposex was compared between species in shallow waters and deep waters. In whelks in shallow waters, imposex was observed, with low RPSI values. However, for whelks in deep waters, there is no need to put imposex in question in all localities. Imposex was not found at all among whelks, or if any, only very few whelks with very slight imposex were observed. From this fact, it is considered that whelks in deep waters are less subjected to the influence of TBT, or that at present, the whelk populations have recovered from imposex, even though they had been affected by the use of TBT compounds.
• Fishing efficiency estimated based on the abundance from virtual population analysis and bottom-trawl surveys of Pacific cod Gadus macrocephalus in the waters off the Pacific coast of northern Honshu, Japan

  Y Ueda, Y Narimatsu, T Hattori, M Ito, D Kitagawa, N Tomkawa, T Matsuishi

  NIPPON SUISAN GAKKAISHI 72 (2) 201 - 209 0021-5392 2006/03 [Refereed][Not invited]
   

  Fishing efficiency is one of the most important parameters to estimate population size using the swept area method based on bottom-trawl surveys. In the present study, the fishing efficiency of the stock of Pacific cod Gadus macrocephalus in the waters off the Pacific coast of northern Honshu, Japan was estimated based on the abundance obtained from virtual population analysis. Fishing efficiencies were estimated to fit the population size obtained from the swept area method to that obtained from virtual population analysis. Fishing efficiency was estimated as 0.54 for 1-year-old and 0.12 for 2-year-old fish, which had a significant difference. This is because, the fishing efficiency of 2-year-old fish was mainly affected by encounter rate to fishing gear caused by the difference of distribution area among the fish of different ages; many of the 2-year-old and over fish distributed on un-trawlable parts, e.g. rough-bottomed reefs.
• Management of inland open water fisheries resources of Bangladesh: Issues and options

  MM Hossain, MA Islam, S Ridgway, T Matsuishi

  FISHERIES RESEARCH 77 (3) 275 - 284 0165-7836 2006/03 [Refereed][Not invited]
   

  Despite the possession of a highly productive inland water area of about 45,000 km(2), the continuing decrease in fish catch increasingly threatens the livelihoods of more than 12 million fishers in Bangladesh. The government's open access and leasing policies have been identified as the principal causes of catch decline. Conflicting demands on the inland aquatic area also accelerate drastically the destruction of aquatic resources. Barriers to the access of fishers in the management of inland fisheries resources and over-exploitation by the relatively wealthier non-fisher population are reducing the options for sustaining the livelihoods of fishery dependent communities. The government has pursued a range of initiatives to arrest this continued decline but none has appeared to be appropriate. In this study we investigated the present fisheries management crisis of Bangladesh and justified the opportunities for existing fisheries management to evolve towards community based fisheries management (CBFM) to support the sustainable use of fisheries resources in future. (C) 2006 Elsevier B.V. All rights reserved.
• Are the exploitation pressures on the Nile perch fisheries resources of Lake Victoria a cause for concern?

  T Matsuishi, L Muhoozi, O Mkumbo, Y Budeba, M Njiru, A Asila, A Othina, IG Cowx

  FISHERIES MANAGEMENT AND ECOLOGY 13 (1) 53 - 71 0969-997X 2006/02 [Refereed][Not invited]
   

  Lake Victoria is one of the African Great Lakes, and an important source of affordable protein food in the form of fish. It provides employment, income, and export earnings to the riparian communities. Despite this importance there are major concerns about the status and exploitation of the fisheries. This study assesses if current extraction rates/yield of Nile perch, Lates niloticus (L.), from Lake Victoria are sustainable for the foreseeable future. The paper reviews trends in catch and effort in the Nile perch fishery and models the expected scenarios using ECOPATH. The fishery exhibits, classic indicators of intensive fishing, erring towards overexploitation, including: (i) decline in total estimated catch of Nile perch in recent years from the peaks in the 1990s. This is coupled with a shift in contribution of catches from higher trophic level species (Nile perch) to lower trophic level (dagaa) species. (ii) Three major trends in the fishing effort are evident: (a) almost doubling of the number of fishers and fishing boats between 1990 and 2000, and the even greater expansion between 2000 and 2002; (b) a large scale increase in the number of gears operational in the lake; and (c) the propensity for use of 'illegal' gears. (iii) Catch-per-unit-effort has declined from about 80 to 45 kg per boat day. (iv) Predictive modelling (ECOSIM) of the future of the Nile perch fisheries under a scenario of increased fishing effort suggests that the fisheries are unsustainable and will decline in the long term. It appears that the Nile perch stocks in the three riparian countries are under intense fishing pressure, and unless concerted action is taken, the potential for degradation of the resources is prevalent. In view of the importance of these fisheries, it is recommended that a precautionary approach to further intens-ification of the fisheries is adopted until such time empirical evidence shows that the fisheries are capable of further expansion and intensification. The main options for management are devolvement of responsibilities for the fisheries to the communities, enforcement of existing regulations, improved monitoring and data collection processes, reducing post-harvest losses and increasing the value of the products to the export market.
• Theoretical comparison of the methods of heritability estimation for a threshold trait on the basis of data from nested breeding system

  Ikeda H, Matsuishi T, Kanno Y

  Aquaculture Science 水産増殖談話会 53 (4) 377 - 382 0371-4217 2005/12/20 [Refereed][Not invited]
   

  閾値形質の遺伝率推定に用いられる4つの方法 (2値法, 逆正弦変換法, プロビット変換法およびDempseter and Lerner法) について, その推定精度を比較した。枝分かれ交配様式のモデルからコンピュータ上で仮想的な交配を行い, 閾値形質を持つ子を生成し, その遺伝率を4つの方法でそれぞれ推定した。2値法と逆正弦変換法は, 設定した真の遺伝率に対して常に過小推定であり, 両方法は同じ挙動を示した。プロビット変換法は偏り少なく遺伝率を推定したが, 高い遺伝率および極端な閾値形質の発生率において異常な過大推定を招いた。Dempster and Lerner法はすべてにおいて真に近い遺伝率を推定した。したがって, 閾値形質の遺伝率を推定するときには, Dempster and Lerner法を用いるのが最善であると考えられた。
• Length-based stock assessment and fisheries management of hair crab Erimacrus isenbeckii in Funka Bay, Hokkaido, Japan

  E Mihara, H Yamaguchi, Y Ueda, T Matsuishi

  NIPPON SUISAN GAKKAISHI 71 (6) 935 - 941 0021-5392 2005/11 [Refereed][Not invited]
   

  The hair crab fishery in Funka Bay, Hokkaido, has adopted a total allowable catch system. In order to examine management policy, a length-based population analysis (LPA) including yield per recruit (YPRL) was conducted on the hair crab in Funka Bay. LPA is effective for assessing fish stocks with uncertain aging characteristics. YPRL was developed for this study, as a method of calculating the YPR using parameters for each length class, which are estimated by LPA, instead of parameters for each age. The LPA model followed the population dynamics of this stock. Estimated abundance remained comparatively stable, but showed no recovery trend. As a result of YPRL, the fishing mortality coefficient, which is used for calculating total allowable catch, was 60% of F-0.1, a sufficiently safe value. Consequently, we. concluded that fisheries management should continue to be based on the existing reference points.
• Ovarian histology of a young harbour porpoise, Phocoena phocoena, caught off the coast of Funka bay, southern Hokkaido

  Honma,Y, Ushiki,T, Takeda,M, Matsuishi,T

  Japan Cetology (15) 11 - 16 2005/10 [Refereed][Not invited]
   

  The ovaries (each 25mm in length) of a female harbor popoise, Phocoena phocoena, accidently caught in a set net on 26 April 2004, were examined histologically to assess their degree of maturity. The sectioned cortical region was occupied entirely with numerous primordial and primary follicles, whereas in the medullary region a small number of secondary follicles, thick-walled arteries and thin-walled veins were apparent. A few atretic follicles were also encountered. However, more developed follicles, such as Graafian follicles, were not detected. No secretory substance could be demonstrated in the mucous epithelia of the oviduct and underdeveloped uterine glands. The specimen appeared to be an infant owing to its very immature ovarian architecture.
• Weight-based yield per recruitment and spawning-biomass per recruitment analyses of Pacific cod Gadus macrocephalus off the Pacific coast of southern Hokkaido, Japan

  Y Ueda, T Matsuishi

  FISHERIES SCIENCE 71 (4) 799 - 804 0919-9268 2005/08 [Refereed][Not invited]
   

  The present study assessed the stock state of Pacific cod Gadus macrocephalus caught off the coast of southern Hokkaido, Japan. Weight-based yield per recruitment (YPR) and spawning-biomass per recruitment (SPR) analyses were used for this assessment. The current fishing mortality (average from 1998 to 2000) was 0.65 and weight at first capture was 0.5 kg bodyweight. Under these fishing pressures, the YPR of Pacific cod in southern Hokkaido was 1.06 kg/recruitment and percentage of SPR (%SPR) was 6.9%. The %SPR was lower than the critical limit at 20%SPR. The main reason that values of both YPR and %SPR were not optimum, would be that the weight at first capture was too small. Raising the weight at first capture was thought to be a better strategy from the biological viewpoint, and reducing fishing mortality to 0.3 would be the next alternative strategy from the fisheries management viewpoint.
• Velocity control of harbor porpoise (Phocoena phocoena): a case study

  Ito K, Matsuishi T, Ito A, Kojima Y, Miyashita A, Aoyama M

  Studies in perception and action 8 77 - 81 2005/06/01 [Refereed][Not invited]
   

  Proceedings of 13th International conference on perception and action/ ed. by H. Heft and K. L. Marsh
• Ecopath with Ecosim

  Matsuishi T

  KAIYO Monthly 37 (3) 212 - 220 2005/03/01 [Not refereed][Invited]
  
• 養殖ヒラメ，鯨肉を事例とした携帯電話によるトレーサビリティシステムの開発と今後の展開

  長野 章, 三上 貞芳, 松石 隆, 若林 隆司, 鳴海 日出人, 桑原 伸司, 清野 克徳, 黄金崎 清人, 古屋 温美

  Kita Nihon Gyogyou 北日本漁業経済学会 (33) 60 - 71 1342-3207 2005/03 [Refereed][Not invited]
   

  食品の産地偽装が食の安全を脅かすことから、トレーサビリティシステムの確立が求められている。本研究では、QRコードと携帯電話を用いたトレーサビリティシステムを構築し、ヒラメと鯨肉を用いた実証実験を行った。その結果、概ね狙い通りの結果が得られたが、作業時間や消費者へのPR法などに問題があることが分かった。 (TM)
• Increase of inbreeding by stocking on wild population assessed by using individual-based life history model

  T Oota, T Matsuishi

  FISHERIES SCIENCE 71 (1) 73 - 78 0919-9268 2005/02 [Refereed][Not invited]
   

  The genetic impact of stocking on natural populations was assessed by using individual-based life history models. Models were constructed that included density-dependent mortality at the early life stage, natural mortality, fishing mortality, and the number of released fish. These variables were varied by using random numbers. The focus was on the genetic impact of the number of released fish, the number of parent fish producing seedlings that were released, the sex ratio of the parent fish, fishing mortality, and the methods to select the parents of the seedlings. When brood stock size in the hatchery was five males and five females, the coefficient of inbreeding was about 27-fold as high as that in the case of 50 males and 50 females at the 50th generation. The coefficient increased about fivefold at the 50th generation, when the sex ratio of the parents changed from 50 males and 50 females to 10 males and 90 females. When parents were taken from wild populations at random, extreme fishing mortality reduced genetic diversity.
• Development and future perspectives of a tracability system of Japanese flounder and whaleflesh by using mobile phone

  Nagano,A, Mikami,S, Matsuishi,T, Wakabayashi,T, Narumi,H, Kuwahara,S, Seino,K, Koganezaki,K, Furuya,A

  Kita Nihon Gyogyou (33) 2005
• Weight-based virtual population analysis of Pacific cod Gadus macrocephalus off the Pacific coast of southern Hokkaido, Japan

  Y Ueda, Y Kanno, T Matsuishi

  FISHERIES SCIENCE 70 (5) 829 - 838 0919-9268 2004/10 [Refereed][Not invited]
   

  Age-based population assessment is widely used, but there are cases where information on age or even body length of landed fish is difficult to collect. In the present study, the biomass and fishing mortality of the southern Hokkaido stock of Pacific cod Gadus macrocephalus was estimated directly from body weight composition, using weight-based virtual population analysis, from 1994 to 2000. The estimated biomass over 1 kg body weight was 5607 t in 1994 and increased to 7908 t in 2000. The increase was explained by an increase in recruitment.
• Surfacing Interval of Minke Whale Balaenoptera bonaerensis in Antarctic

  Saito T, Ikeda H, Matsuishi T

  Bulletin of Fisheries Sciences, Hokkaido University 北海道大学 55 (1) 7 - 10 1346-1842 2004/08 [Not refereed][Not invited]
   

  The surfacings of minke whales were collected through direct observation from JARPA (Japanese Whale Research Program under special permit in the Antarctic) and analyzed to see the distribution and average of the surfacing interval. The distribution of surfacing interval was found to be of single-peeked and long tailed. The average was 1’ 35’’ with all data. The averages for group size of 1, 2 and 3 were 2’ 11”, 1’ 54” and 55” respectively. The result of surfacing interval of this study was observed longer than that of the other studies in Antarctic. It is thought that this difference resulted from the difference of surfacing definition among studies.
• Histological observations on the reproductive organs of harbor porpoises Phocoena phocoena incidentally caught in a set net installed off Usujiri, southern Hokkaido

  Y Honma, T Ushiki, H Hashizume, M Takeda, T Matsuishi, Y Honno

  FISHERIES SCIENCE 70 (1) 94 - 99 0919-9268 2004/02 [Refereed][Not invited]
   

  A histological examination of two harbor porpoises Phocoena phocoena caught in a set net established off Usujiri, Hokkaido was conducted in order to further understand the reproductive biology of the species. In the male, a unilateral testis comprised a testicular lobe and rete testis, seminiferous tubules of the former being composed mostly of Sertoli (sustentacular) cells and a few primodial germ cells, whereas the latter contained numerous anastomosing tubules consisting of columnar epithelia. In the female, the smooth-surfaced ovary consisted mostly of primodial and secondary follicles and a few atretic follicles, although more developed Graafian follicles were not found. A highly intricate oviduct (fallopian tube) was constructed from simple high columnar cells, but did not contain AF-positive substance. Both individuals examined were considered to be infants owing to their very immature gonads.
• Necessary and sufficient conditions of mesh size and hang-in ratio and hang-out ratio for fish to pass through the mesh

  M Natsume, T Matsuishi

  NIPPON SUISAN GAKKAISHI 69 (4) 596 - 601 0021-5392 2003/07 [Refereed][Not invited]
   

  For a fish to pass through the mesh of a net, the mesh perimeter must be at least equal to the fish's maximum girth. Assuming the maximum girth as the circumference of an ellipse calculated from the maximum body depth (D.) and maximum body width (W.), We assessed the necessary conditions of the mesh size (L-n) for a fish passing through the mesh without entanglement and the sufficient conditions of the mesh size (L-s) for the cross-sectional shape of the fish body encountering the four sides of the mesh at four tangential points. For mesh size in a sufficient condition, the hang-in ratio (Si) and hang-out ratio (S.) were assessed. The necessary conditions of the mesh size can be expressed as, L-n = (pi/4) (1.5 (D-m + W-m) - rootD(m)W(m)), that is as half the circumference of the ellipse. Sufficient condition of the mesh size can be expressed as L, = D + W., that is as the total of the maximum body depth and maximum body width. The hang-in ratio and hang-out ratio were obtained as S-i = 1 - rootW(m)/(D-m + W-m), S-o = root(D-m + W-m)/W-m - 1. Based on measurements of the maximum body depth and maximum body width of Arabesque greenling, Pleurogrammus azonus, of about 30 cm standard length, the average values of the approximation were: L-n = 94.7 mm, L-s = 119.0 mm, S-i = 0.376, S-o = 0.604.
• Effect of temperature on development, growth and reproduction in the marine copepod Pseudocalanus newmani at satiating food condition

  HW Lee, S Ban, T Ikeda, T Matsuishi

  JOURNAL OF PLANKTON RESEARCH 25 (3) 261 - 271 0142-7873 2003/03 [Refereed][Not invited]
   

  Post-embryonic development time, somatic growth, egg production rate, survival and sex ratio for the marine calanoid copepod Pseudocalanus newmani from the Pacific coast off southwestern Hokkaido were determined at five temperatures (3, 6, 10, 15 and 20degreesC) when a mixed algal diet was provided at satiating food condition (0.36 mug C ml(-1)) in the laboratory. At temperatures between 3 and 15degreesC, the development time from hatching to adult female increased exponentially with decreasing temperature, being 23.3, 33.1, 46.7 and 74.6 days at 15, 10, 6 and 3degreesC, respectively. Males developed into adults 2-5 days earlier than did the females. At the highest temperature of 20degreesC, both embryonic and post-embryonic development and egg production of P. newmani were suppressed. This inhibitory effect of high temperature is consistent with the vertical distribution range and seasonal abundance cycle of this copepod in the field; it tends to avoid the warm surface layer (>15degreesC) and scarcely appears in the water column during summer and autumn. Body size of P. newmani was not affected by temperature until C1, but increased with decreasing temperature after C2. The weight-specific growth rate (SGR) increased linearly with temperature (T) until 15degreesC, which is expressed as SGR = 0.0095T + 0.0462 (r = 0.996). This growth pattern may also indicate high-temperature stress to this copepod, the general Pattern of copepod growth being exponential. The weight-specific egg production rate (SER) also increased with temperature (SER = 0.02 T + 0.014, r = 0.99), below 15degreesC. The proportion of mate offspring of P. newmani that grew to adulthood was nearly 50% at 3 and 6degreesC, but decreased with increasing temperature at 10-15degreesC. This unequal sex ratio may be due to sex change during juvenile development under temperature control. These results suggest that temperature plays an important role in life history traits of P. newmani through not only temperature-dependent growth and reproduction, but also through high-temperature inhibition and temperature-controlled sex ratio under sufficient food supply.
• Behavior of a harbor porpoise in an unfamiliar environment

  Y Honno, K Ito, T Matsuishi, M Okura, M Sasaki

  STUDIES IN PERCEPTION AND ACTION VII 7 191 - 194 2003 [Refereed][Not invited]
   

  Proceedings of 12th International conference on perception and action
• Population assessment of sockeye salmon Oncorhynchus nerka caught by recreational angling and commercial fishery in Lake Toya, Japan

  T Matsuishi, A Narita, H Ueda

  FISHERIES SCIENCE 68 (6) 1205 - 1211 0919-9268 2002/12 [Refereed][Not invited]
   

  We carried out mail and access point surveys to estimate the catch numbers, angling effort of recreational angling and the population of sockeye salmon Oncorhynchus nerka in Lake Toya in 1998 and 1999. The mail survey questions in questionnaires distributed to anglers with a recreational angling license included date of angling, caught fish species and size, and catch number. In the access point survey we also asked anglers if they had a license. We measured the fork length and weight of caught fish. The catch rate (catch number in a day by each angler) from both surveys showed no significant difference, suggesting no bias for the catch rate between surveys. The estimated total angling effort was 1760 people (1998), and 1516 people (1999). The estimated recreational catch was 28889 (1998) and 5455 (1999), that is, two or three times larger than the commercial catch. The fish population was estimated by using the DeLury method as 60 262 (1998) and 10806 (1999). The total exploitation rate was 62% (1998) and 78% (1999). The size of caught fish was much larger in 1999 than 1998 because of the difference in age composition.
• Relationship between the necessary swimming power for fish passing through a mesh and the narrow fish body tightened by the mesh

  M Natsume, T Matsuishi

  NIPPON SUISAN GAKKAISHI 68 (6) 881 - 886 0021-5392 2002/11 [Refereed][Not invited]
   

  In order to investigate the relationship between the girth of fish and the appropriate mesh size when the fish body passes through the mesh in case of wedged capture, a new device for measuring the maximum girth was developed. This device is capable of simultaneously measuring both the maximum girth of the fish body and the traction force as the force required to pass through the artificial mesh which is contracted by an attached load. Using the device, the maximum girth and traction force were measured for arabesque greenling Pleurogrammus azonus of about 30 cm standard length, as the contracted load was increased gradually in four steps from 0.49 N to 2.94 N. When the contracted loads were 0.98 N and 1.96 N, the mean forces of traction were 5.19 N and 10.01 N, respectively. The mean swimming power of arabesque greenling was about 6.57 N. These results suggest that arabesque greenling would not pass through a mesh contracted by a load of about 1.96 N, but would pass through a mesh contracted by a load of about 0.98 N. When the contracted load was 0.98 N, the shortening ratio of the girth was 97.3%.
• Effects of catch-and-release angling on growth, survival and catchability of white-spotted charr Salvelinus leucomaenis in wild streams

  J Tsuboi, K Morita, T Matsuishi

  NIPPON SUISAN GAKKAISHI 68 (2) 180 - 185 0021-5392 2002/03 [Refereed][Not invited]
   

  We examined the effects of catch-and-release angling on the growth, survival and catchability of white-spotted charr Salvelinus leucomaenis in four wild streams in northern Japan. Investigations were made twice at each stream. We angled fish with live bait and caught fish using electrofishing as controls. Angled and control fish were measured for fork length, marked individually and released. Fifty days later, we angled and caught by electrofishing again. A total of 282 angled fish and 376 control fish had fork lengths of 80.5 to 282.5 mm. Hooking mortality within a few minutes was 6.7%, which agreed well with previous data by studies of catch-and-release mortality. There was no significant difference in standardized growth rate between angled fish and control fish. The recapture rates of angled and control fish were 77.9 and 74.2% respectively, suggesting that the survival rate of angled fish is not lower than that of control fish. No significant difference in catchability was found between angled fish and control fish. The results show no evidence that catch-and-release angling affects growth, survival and catchability. We conclude that catch-and-release angling is effective to sustain white-spotted charr populations.
• Population assessment using a length-based population analysis for the Japanese hair crab (Erimacrus isenbeckii)

  H Yamaguchi, Y Ueda, Y Kanno, T Matsuishi

  CRABS IN COLD WATER REGIONS: BIOLOGY, MANAGEMENT, AND ECONOMICS 19 495 - 509 2002 [Refereed][Not invited]
   

  The purpose of this paper is to apply an improved length-based population analysis (LPA) to eastern Hokkaido hair crab, Erimacrus isenbeckii. The model incorporates stochastic growth and a gradual recruitment over length. The model contains a nonlinear least squares method to estimate growth, probability of molting, abundance, and recruitment. Abundance and catch data from 1992 to 1999 were used to test the model. The population abundances estimated by LPA fit the observed abundances well. Estimated abundance and recruitment showed that the hair crab popuIation in eastern Hokkaido was strongly influenced by yearly recruitment. A large abundance was the result of an abundant recruitment. This may be caused by the unsettled condition of the hair crab population in eastern Hokkaido. The estimated molt frequency by length differed from those previously reported, suggesting that some new-shelled crabs may molt. We suggest three more terms to improve the model.
• Winter sightings of humpback and Bryde's whales in tropical waters of the western and central North Pacific

  Ohizumi,H, Matsuishi,T, Kishino,H

  Aquatic Mammals 28 (1) 73 - 77 2002/01 [Refereed][Not invited]
   

  Sighting surveys of cetaceans were conducted in tropical waters of the western and central North Pacific during January and February 1993. In total, 51 schools and 1915 individuals were sighted, including humpback whales, Bryde's whales, sperm whales, striped dolphins, and other unidentified cetaceans. Humpback whales were sighted around Hawaii and Iwo Island. Surveys around the Pagan and Agrihan Islands in the Northern Mariana Islands yielded no sightings. The probable southernmost area of the common wintering and breeding grounds of humpback whales in the Ogasawara-Mariana region is around the Kazna Islands, including Iwo Island. A solitary humpback whale was sighted some distance from Hawaii, which may have been a 'wanderer' that was flexible in its selection of wintering grounds. Bryde's whales were sighted in the central North Pacific at about 20 degree N. This area is just south of the summer distribution of Bryde's whales. The wintering area of Bryde's whales in the central North Pacific partially overlaps with the summering area. About 20 degree N may be the northernmost boundary of the pelagic wintering area that extends from the western North Pacific to the central Pacific.
• Population assessment using a length-based population analysis for the Japanese hair crab Erimacrus isenbeckii

  Hiroshi Yamaguchi, Yuji Ueda, Takashi Matsuishi

  FISHERIES SCIENCE 68 (Suppl.I) 475 - 476 0919-9268 2002 [Refereed][Not invited]
   

  ケガニは重要な資源であるが、年齢形質が無いために体長ベース解析が不可欠である。本研究では、ケガニ用に改訂された体長ベースモデルを用いて道東沿岸のゲガニの資源量推定を行った。その結果、モデルとデータの当てはまりはよく、資源個体数は70万〜210万個体と推定された。 (TM)
• Stock assessment based on body size information

  Yuji Ueda, Takashi Matsuishi

  FISHERIES SCIENCE 68 (Suppl.I) 425 - 426 0919-9268 2002 [Refereed][Not invited]
   

  年齢ベースモデルによる解析が広く用いられているが、漁獲や成熟等は体サイズに依存することから、体サイズベースの資源評価が合理的である。本研究では、体サイズにもとづくYPRとSPR解析法を開発し、北海道沿岸のスケトウダラに適用した。その結果、年齢もとづく結果と遜色ない結果が得られることが分かった。 (TM)
• Effect of Individual Growth Variation on Stock Assessment and Management

  Takashi Matsuishi

  FISHERIES SCIENCE 68 (Suppl.I) 423 - 424 0919-9268 2002 [Refereed][Not invited]
   

  魚類の成長には大きな個体差があるが、資源管理モデルでは一般に考慮されていない。そのため、漁獲の体長選択性を通じて、成長個体差が管理効果に与える偏りが懸念される。本研究ではシミュレーションにより、成長個体差がYPR解析や%SPR解析結果に与える偏りについて評価した。その結果、個体差が大きくなるにつれ、YPRは過小評価、SPRは過大評価される傾向があり、成長の個体差を考慮した解析の必要性が示唆された。 (TM)
• A new model of growth back-calculation incorporating age effect based on otoliths

  K Morita, T Matsuishi

  CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES 58 (9) 1805 - 1811 0706-652X 2001/09 [Refereed][Not invited]
   

  We developed a simple back-calculation model that includes the age effect in which otolith size increases continuously during no-growth periods. To evaluate the validity of our proposed model, we back-calculated the past fish lengths and growth rates using the new model and seven traditional back-calculation models (scale-proportional hypothesis (SPH), body-proportional hypothesis (BPH), Fraser-Lee, biological intercept, nonlinear SPH, nonlinear BPH, and modified Fry) using the otoliths of individually tag-recaptured white-spotted char (Salvelinus leucomaenis). The estimated fish lengths corresponded well to observed fish lengths for simple traditional (SPH, BPH, and Fraser-Lee) and the new models. However, the back-calculated growth rates did not correspond to observed growth rates except for the new model. All previous models had considerable bias; growth rates of slow-growing fish were overestimated. As our model incorporating the age effect did not show such bias, this bias would be attributed to the age effect. Our proposed back-calculation model incorporating the age effect should be useful to estimate past growth rates at the individual level.
• Relationships between otolith weight and fish swimming speed

  Mori,T, Noda,T, Matsuishi,T, Lee,TH

  Journal of the Fisheries Society of Taiwan 28 (3) 203 - 207 2001/09/01 [Refereed][Not invited]
   

  The otolith is an important part of the sensory organ of fish in detecting their direction and keeping balance through the movement of the otolith when swimming. The size of the otolith tends to vary according to the swimming speed of different fishes as the higher the speed, the smaller the otolith. Therefore, the deduction model was made to show the relationships between gravitational force being received by one cilium according to the otolith and fish swimming speed, and the aspect ratio was used as index to estimate fish swimming speed. Various otoliths were obtained from seventeen species of fish and otolith weight/body weight and aspect ratio were measured and regression analysis was performed to check whether or not the formula fit these data of otoliths and aspect ratio. The formula fitted the actual data well (R^2=0.735), and suggesting that fish have taken a strategy of adapting to their different swimming sty les by changing the otolith size more than by changing the cilium sensitivity.
• Weight-based population analysis: an estimation method

  Y Ueda, T Matsuishi, Y Kanno

  FISHERIES RESEARCH 50 (3) 271 - 278 0165-7836 2001/03 [Refereed][Not invited]
   

  Generally, the individual weight of large fish is measured at landing, and thus, their weight composition is easily obtained. In this paper, we develop a method of population analysis using weight composition of fish, called weight-based population analysis, or WPA. WPA needs data of catch-at-weight, weight composition, weight from the growth and natural mortality M. We apply the method to the walleye pollack fishery in Funka Bay to evaluate its validity. The results show that the population size estimated from WPA reflects the features of population dynamics, and the estimated parameters reflect this walleye pollack fishery. Further, we compare the results of WPA with those of virtual population analysis (VPA) using catch-at-age data. The trend of population dynamics estimated using WPA was comparable to the results of VPA, suggesting that WPA can estimate population size as well as VPA. (C) 2001 Elsevier Science B.V. All rights reserved.
• Subpopulations of Pacific cod Gadus macrocephalus off the Pacific coast of northern Japan

  Y Kanno, Y Ueda, T Matsuishi

  NIPPON SUISAN GAKKAISHI 67 (1) 67 - 77 0021-5392 2001/01 [Refereed][Not invited]
   

  Density of the fish shoal and vertebral counts of Pacific cod at various locations in the Sea of Japan and in the Pacific Ocean off the Tohoku District, and in the Pacific Ocean off Hokkaido were studied. Off the Pacific coast, there were three high density areas of fish shoal, i.e., the waters off Sanriku in the Tohoku district, the waters off Cape Esan and the waters off Kushiro in Hokkaido. In the Sea of Japan, there were two high density areas of fish shoal, i.e., the waters off Aomori and Akita prefectures and the waters off Yamagata prefecture. In addition, factor analysis of the monthly catch per seine net showed that the fish in the eastern waters off Cape Erimo, those in the western waters off Cape Erimo, and those in the waters off Sanriku each have peculiar trends of change in the CPUE (catch/net) among monthly catches. Furthermore, the statistical analysis of the vertebral counts showed that the Pacific cod from the eastern waters off Cape Erimo had significantly higher vertebral counts than the Pacific cod in other areas. The results of the present research and the information on spawning grounds previously reported, suggest that there are three subpopulations of Pacific cod in the present research area in the Pacific Ocean, i.e., a subpopulation in the eastern waters off Cape Erimo, a subpopulation off Cape Esan and a subpopulation off Sanriku District. Further studies are needed to determine the locations of subpopulations of this species in the Sea of Japan.
• Population assessment using a length-based population analysis for the Eastern Hokkaido hair crab Erimacrus isenbeckii

  H Yamaguchi, Y Ueda, Y Kanno, T Matsuishi

  NIPPON SUISAN GAKKAISHI 66 (5) 833 - 839 0021-5392 2000/09 [Refereed][Not invited]
   

  A length-based population analysis (LPA) was applied to the Eastern Hokkaido hair crab Erimacrus isenbeckii, incorporating stochastic growth and gradual recruitment over length. A nonlinear least squares approach was used to estimate growth, probability of molting, abundance, and recruitment. The model was applied to abundance and catch data from 1992 to 1997. The estimated population abundances by LPA fit observed abundances well. This suggests that the LPA model can describe the population dynamics of hair crab in Eastern Hokkaido. Furthermore, the LPA model may apply to other populations of unknown age structure like the hair crab in this study. Estimated abundances and recruitments show that the hair crab population in Eastern Hokkaido is strongly influenced by yearly recruitment. A large abundance is the result of abundant recruitment. It may be caused by the unsettled condition of the hair crab population in Eastern Hokkaido. LPA can estimate yearly recruitment. It makes possible clearly indicating the reference,point such as YPR or SPR. It can ensure that effective stock management of hair crabs in Eastern Hokkaido is realized.
• Genetic variability of masu salmon in Hokkaido, by restriction fragment length polymorphism analysis of mitochondrial DNA

  KT Suzuki, T Kobayashi, T Matsuishi, K Numachi

  NIPPON SUISAN GAKKAISHI 66 (4) 639 - 646 0021-5392 2000/07 [Refereed][Not invited]
   

  Mitochondrial DNA (mtDNA) of masu sah-non among eight populations from six rivers around Hokkaido island were examined to clarify their genetic features and population structure. Restriction fragment length polymorphism (RFLP) analysis using 10 restriction endonucleases (Acc I, Ava I, BamH I, Bgl I, Bgl II, EcoR I, Hinc II, Hind III, Pst I, Xba I) revealed considerable variation. We found 20 haplotypes in 180 specimens. Restriction patterns were polymorphic for 7 enzymes examined. Nucleotide divergence among haplotypes ranged from 0.14 to 2.41%. Nucleotide divergence among populations ranged from 0.49 to 0.70%. Dendrogram constructed by UPGMA among 20 haplotypes showed no clustering groups of localities. Nucleotide diversity and nucleon diversity of each locality ranged from 0.0043 to 0.0072, and from 0.7617 to 0.9304, respectively. These results showed masu salmon populations in Hokkaido have a high mtDNA variability. It is important that high genetic variability be highly regarded in stock enhancement of masu salmon.
• Validation of auto-counting method by NIH Image using otoliths of white-spotted char Salvelinus leucomaenis

  Y Takashima, T Takada, T Matsuishi, Y Kanno

  FISHERIES SCIENCE 66 (3) 515 - 520 0919-9268 2000/06 [Refereed][Not invited]
   

  The ages of individual specimens of white-spotted char Salvelinus leucomaenis, collected from the Furuu River in Hokkaido, Japan, were determined from otoliths using NIH Image. We employed two methods to determine age. First, for a surface method (traditional method), the ages were made from examinations of otoliths under a microscope by experienced readers A, B and an unexperienced reader C. Second, for an auto-counting method, a computer program was used to detect the peaks from otolith images. We made a mathematical model to estimate the probability of a correct reading for each reader, using the results of the age determination and the percent age agreement among readers. The ability to determine the age of white-spotted char depended on whether or not the reader had ever previously made age determinations. The ability of auto-counting method was below that of reader A tone of the experts), and the method was slightly superior to reader B (the other expert).
• Stock structure of walleye pollock, Theragra chalcogramma, around Hokkaido and Sakhalin in the term of mitochondrial DNA RFLP

  Mizuno M, Kobayashi T, Matsuishi T, Maeda K, Saitoh K

  Science Reports of Hokkaido Fisheries Experimental Station 北海道立水産試験場 57 (1) 1 - 8 0914-6830 2000/03/31 [Not refereed][Not invited]
   

  For the understanding about stock structure of walleye pollock, Theragra chalcogramma, around Hokkaido and Sakhalin, variation in mitochondrial DNA (mtDNA) was examined via restriction endonuclease digestions in 196 walleye pollock from 7 areas. Ten enzymes produced variant restriction patterns both within and among populations, and significant differences in their haplotype frequencies were detected between walleye pollock from off the east coast of Sakhalin and the others, therefore its genetic independence was estimated. But all of their genetic divergences in terms of nucleotide substitution were fairly small. From these evidences, we could draw tentative conclusions about stock structure of walleye pollock around Hokkaido and Sakhalin, that a genetically distinct population existed in the Okhotsk Sea, and that among stocks of around Hokkaido and Sakhalin either genetic differentiation was not so progressed or genetic exchange occurred.
• Genetic variability of Japanese Longfin Smelt by restriction fragment length polymorphism analysis of mitochondrial DNA

  KT Suzuki, T Kobayashi, T Matsuishi, K Numachi

  NIPPON SUISAN GAKKAISHI 66 (2) 269 - 274 0021-5392 2000/03 [Refereed][Not invited]
   

  Mitochondrial DNA (mtDNA) of Japanese Longfin Smelt Spirinchus lanceolatus among four river populations were examined to clarify their genetic feature and population structure. Restriction fragment length polymorphism (RFLP) analysis using 9 kinds of B-base recognized restriction endonucleases (APa I, Aya I, BamH I, Bgl II, BstE II, EcoR I, Pst I, Pvu II, Xba I) revealed considerable variaton. Pie found 17 haplotypes in 91 specimens. Restriction fragment patterns were polymorphic for 7 enzymes examined. Nucleotide divergence between haplotypes ranged from 0.27 to 2.33%. Nucleotide divergence between populations ranged from 0.37 to 0.54%. A dendrogram constructed by UPGMA among 17 haplotypes showed no clustering groups of localities. Nucleotide diversity and nucleon diversity of each locality ranged from 0.0028 to 0.0052, and from 0.7758 to 0.9074, respectively. Distinguishable two stocks by morphological analysis showed significant difference in their haplotype freqencies.
• Effect of maternal growth history on egg number and size in wild white-spotted char (Salvelinus leucomaenis)

  Kentaro Morita, Shoichiro Yamamoto, Yoshinobu Takashima, Takashi Matsuishi, Yasuji Kanno, Kinya Nishimura

  Canadian Journal of Fisheries and Aquatic Sciences 56 (9) 1585 - 1589 0706-652X 1999/09 [Refereed][Not invited]
   

  Differences in egg number and egg size within a wild population of white-spotted char (Salvelinus leucomaenis) were examined from the perspective of maternal growth history by using a back-calculation method. Relatively greater egg size variation occurred among females (61.6%) than within females (38.4%). Larger females produced a larger number of eggs, which were also larger in size. To understand the causes of variation in egg number and egg size, several contributory factors determining maternal size were considered (initial size, growth rate for each age, total age). Egg number was not associated with maternal growth history. Contrary to egg number, egg size was strongly associated with maternal growth history high growth in the first year was negatively associated with egg size, but high growth in the second year was positively associated with egg size. The results indicated that white-spotted char potentially exhibit phenotypic plasticity in egg size according to their growth history.
• Population structure of Pacific herring Clupea pallasii in the eastern Hokkaido waters

  T Hotta, T Matsuishi, H Sakano, Y Kanno

  NIPPON SUISAN GAKKAISHI 65 (4) 655 - 660 0021-5392 1999/07 [Refereed][Not invited]
   

  In order to clarify population structure of local herring in eastern Hokkaido, and to design an effective release program of seed fish artificially cultivated in aquariums, five samples of Pacific herring, Clupea pallasii, were caught from four spawning grounds. Six meristic characters were counted and statistically analyzed. Furthermore, allele frequencies of two enzymatic loci, GPI and PGM, were examined by using a starch gel electrophoresis. The sample from Yudo Lake had significantly fewer numbers in the upper and the lower gill rakers than in the others. A cluster analysis using the six meristic measurements on five samples showed that there are two local populations in the eastern Hokkaido, i.e, Yudo population and others, the former was a morphologically specific population different from the latter. In addition, Nei's genetic distances using allozyme data of the two loci also suggested that the Yudo sample is the farthest distances from all other samples. It is suggested that the singular characteristics of the Yudo population were connected with a later spawning time in this ground than in others.
• Examination of a length-based population analysis

  T Matsuishi

  FISHERY STOCK ASSESSMENT MODELS 15 659 - 662 1998 [Refereed][Not invited]
   

  Proceedings of the International Symposium on fishery stock assessment models for the 21st century, October 8-11, 1997, Anchorage, Alaska, eds. F. Funk, T. J. Quinn II, J. Heifetz, J. N. Ianelli, J. E. Powers, P. J. Sullivan and C. -I. Zhang, Alaska Sea Grant College Program Report No. AK-SG-98-01
• Development and accuracy assessment of a method of separable VPA based on catch-at-length data

  Matsuishi, T

  Memoirs of the Faculty of Fisheries Hokkaido University 43 (1-2) 1997 [Not refereed][Not invited]
   

  博士論文 東京大学 博士(農学) 乙第12752号
• Estimation of growth function parameters from age-length data including ring-skipping error

  T Matsuishi, H Kishino, Y Kanno

  NIPPON SUISAN GAKKAISHI 62 (1) 28 - 31 0021-5392 1996/01 [Refereed][Not invited]
   

  When age-length data are estimated from growth rings on scale or otolith of fish, a ring-skipping error may be caused by shipping some illegible rings. This error will cause bias in the estimated parameters of growth function. In this study, we developed a maximum likelihood estimation method to estimate the growth parameters and occurrence probability of skipping-error from age-length data, which is obtained from measuring the same individual twice independently. We also examined the bias and accuracy of the method using a simulation technique. When skipping error was considered in the estimation, the bias and the root mean square error of the estimate became smaller than the estimate when skipping error was not considered. This method was robust against the measurement error for the growth function including age-length data.
• Growth curve of abalone

  Matsuishi T, Saito K, Kanno Y

  Bulletin of the Faculty of Fisheries Hokkaido University 北海道大学 46 (3) 53 - 62 0018-3458 1995/12 [Not refereed][Not invited]
   

  von Bertalanffy's growth curve has been widely used to express the growth of abalone, but this curve is known to fit poorly for the young growth stages. We used the von Bertalanffy, Logistic, Gompertz's, and Richards's growth curves to fit the length-at-age data of three populations of abalone collected in the southern part of Akita Prefecture, Japan. Generally, the AIC of the von Bertalanffy's growth curve was highest, and the logistic growth curve had a low AIC. Thus the logistic growth curve is thought to express abalone growth best. We also fitted this curve to length-at-age data by individuals, and examined the correlation among the parameters. Loo has a positive correlation with K and a negative correlation with c. This indicates that individuals that undergo slow growth during their young stages tend to become large.
• A MODEL OF GENE DISPLACEMENT BY STOCKING ACTIVITIES

  T MATSUISHI, H KISHINO, K NUMACHI

  NIPPON SUISAN GAKKAISHI 61 (3) 326 - 330 0021-5392 1995/05 [Refereed][Not invited]
   

  Recent advances in aquatic hatcheries with a variety of fish and shellfish made a large scale stocking of artificially produced seeds into natural fishing grounds possible. When the genetic properties of the stocking population are different from the wild population, displacement of the gene in the wild population will gradually occur by the gene of the stocking population through reproduction. In this study, we investigate the change of the composition of both genes, in terms of the rate of stocking and fitness of the individuals of each genotype, using a simple mathematical model. When the fitness is equal in each genotype and the rate of stocking is 10%, the term that the gene of the wild becomes half (Genetic Halving Time, GHT) is 8 generations, and the term that the gene of the wild becomes 1% (Genetic Displacement Time, GDT) is 49 generations. When the fitness of the hybrid between wild and stocking individuals is smaller that both parents, GHT and GDT are much smaller.
• An estimation method of population abundance using purse seine fishery catch-effort data

  Matsuishi T

  Bulletin of the Faculty of Fisheries Hokkaido University 北海道大学 44 (3) 116 - 126 0018-3458 1993/08 [Not refereed][Not invited]
   

  The catch per shot (CPUE) is often used as a population index, not only for demersal fish but also pelagic fish. However, this only represents the weight of the school in purse seine fishery, because one school is caught in one shot. Because there is no direct relationship between the weight of a school and its population abundance, CPUE cannot be used as an index of the population abundance in purse seine fishery. When searching time data for schools is available, the number of schools can be estimated from this data. From the estimate of school number and weight of school (CPUE), the population abundance can be estimated as the product of both estimates. A method to estimate the population abundance from these data was proposed, and was applied to the purse seine fishery data in the Southeastern Hokkaido region. From the results of such an estimation, a strong correlation was found between the weight of a school and the number of schools. The possibility of school selection in relation to the population density is suggested.
• OPTIMAL SCHOOL SELECTION AND ABUNDANCE INDEX IN PURSE SEINE FISHERY

  T MATSUISHI, T WADA, Y MATSUMIYA, H KISHINO

  NIPPON SUISAN GAKKAISHI 59 (2) 273 - 278 0021-5392 1993/02 [Refereed][Not invited]
   

  In purse seine fisheries which target pelagic fish in the daytime, the catch per shot represents the weight of the school, because schools are caught in one shot. Under the constraint of limited working time, purse seine fishery does target large schools to maximize the benefit. Because of this selectivity, the catch per shot is not proportional to the population abundance. In this paper we clarify the relationships between the catch per shot, the number of shots, the total catch, and the population abundance, assuming the ideal behaviour of fishermen maximizing the total catch. According to the result of a numerical example, the relationship between the catch and the population is a concave function. Thus the responses of total catch weight or catch per shot to changes in population abundance are not sensitive unless the population is highly depleted. In this situation, there is some risk that the detection of changes in population may be delayed when the change is observed only in terms of the catch per shot or the total catch.
• Precision of the estimated natural mortality coefficient and recruitment rate evaluated by Monte Carlo simulation

  Matsuishi T, Kishino, H

  Report of Scientific Committee of International Whaling Committee 43 (Mi) 21  1991 [Not refereed][Not invited]
  
• ESTIMATION OF POPULATION PARAMETERS BY OPTIMIZING CATCH EFFORT ALLOCATION

  Y MATSUMIYA, T MATSUISHI

  RESEARCHES ON POPULATION ECOLOGY 31 (2) 305 - 310 0034-5466 1989/12 [Refereed][Not invited]
   

  In this study, we have developed a new method to estimate population parameters and applied it to a concrete example on the situation that there are two fisheries resources which are depleted only by catch, and that these two resources are not caught equally because of the difference of prices. Switching function, which is originally used to describe the effort allocation that one predator eats two preys, has been introduced. We have constructed a model of fishery in which each fisherman pursues economical optimum. The population size of two species at the beginning of the fishing season, catchability coefficient and parameters of switching function are estimated by the criterion of minimum error sum of squares between CPUE (catch per unit effort) of data and that by model. We have applied it to the diver fishery of abalone in Ojika Island, Nagasaki Prefecture. The model describes well the situation during the season that CPUE of the less expensive species increases gradually as the population of the other species is depleted.
• Precision of the estimated natural mortality coefficient and recruitment rate evaluated by Monte Carlo simulation

  Matsuishi,T, Kishino, H

  Report of Scientific Committee of International Whaling Committee 43/Mi21 1970/01

Books etc

• 水産資源学

  松石隆 (Single work)
  海文堂出版 2022/02 (ISBN: 9784303563349) 

  水産資源を適切に利用するための科学的理論である水産資源学を中心に、その背景、歴史、資源評価結果を用いた漁業管理を含めて論じる。北海道大学水産学部での授業をもとに、水産資源学の全体を俯瞰するために必ず知っておくべき事項に絞りつつ、現場で資源管理・漁業管理を担当する実務者のために具体的な適用例も解説。
• Marine Environments - Diversity, Threats and Conservation

  Endo T, Matsuishi T, FUjii Y, Haraguchi K (ContributorChapter 4 Marine environment and contaminations of radiocesium and organohalogens in cetaceans and Pacific cod inhabiting the coustal waters around Hokkaido, Northern Japan.)
  Nova Science Publishers, Inc., New York 2020/12 (ISBN: 9781536188745) 503 199-256
• Encyclopedia of Bioacoustics

  Matsuishi T, Kuroda M, The Society of Bioacoustics(ed) (Contributor4-2 Hearing of Dolphins)
  Asakura Publishing Co. Ltd. 2019/11 (ISBN: 9784254171679) xii, 441, 4p, 図版 [4] p 146-147
• Encyclopedia of Bioacoustics

  MATSUISHI Takashi, KURODA Mika, The Society of Bioacoustics(e (Contributor4-1 Sound Propagation of Dolphins)
  Asakura Publishing Co. Ltd. 2019/11 (ISBN: 9784254171679) xii, 441, 4p, 図版 [4] p 144-145
• Practice of Fisheries and Marine Environmental Sciences.

  MATSUISHI T, Training ship textbook editing committee Faculty of Fisheries, Hokkaido University (Contributor2.2 Cetacean sighting sruvey)
  Kaibundo 2019/08 (ISBN: 9784303115005) vii, 242p 58-63
• SHUTSUDOU IRUKA, KUJIRA, 110: KAIGANSEN 3066km KARA MIETA YORIKUJIRA NO KAGAKU

  MATSUISHI Takashi Fritz (Single work)
  海文堂出版 2018/11 (ISBN: 9784303800024) 126p
• Fisheries handbook completely revised

  島, 一雄, 関, 文威, 前田, 昌調, 木村, 伸吾, 佐伯, 宏樹, 桜本, 和美, 末永, 芳美, 長野, 章, 森永, 勤, 八木, 信行, 山中, 英明 (Contributor2.4.4 成長・生残モデル)
  講談社 2012 (ISBN: 9784061537361) xix, 699p

Conference Activities & Talks

• Utilizing Bootstrapping on Length Data for Improved Yellowfin Tuna (Thunnus albacares) Resource Management in Indonesia  [Not invited]

  Wiwiet Teguh Taufani, Matsuishi Takashi Fritz

  11th International Fisheries Symposium IFS2023  2023/11  Novotel Bangkok Future Park Rnasit
• Status of Trash Fish Originating from Trawl Fisheries in the Gulf of Thailand  [Not invited]

  Jeeratorn Yuttharax, Pavarot Noranarttragoon, Weerapol Thitipongtrakul, Chonlada Meeanan, Matsuishi Takashi Fritz

  11th International Fisheries Symposium IFS2023  2023/11  Novotel Bangkok Future Park Rnasit
• Estimation of Spatiotemporal Distribution of Fish and Fishing Grounds from Surveillance Information Using Machine Learning: The Case of Short Mackerel (Rastrelliger brachysoma) in the Andaman Sea  [Not invited]

  Chonlada Meeanan, Pavarot Noranarttragoon, Piyachoke Sinanun, Takahashi Yuki, Methee Kaewnern, Matsuishi Takashi Fritz

  11th International Fisheries Symposium IFS2023  2023/11  Novotel Bangkok Future Park Rnasit
• Applying a Length-Based Method for Stock Assessment of Data-Limited Encrasicholina Species (Encrasicholina devisi and E. punctifer) of the Tanzanian Coastal Marine Waters  [Not invited]

  Changoma, Fransis M, Matsuishi, Takashi F

  11th International Fisheries Symposium IFS2023  2023/11  Novotel Bangkok Future Park Rnasit
• A Novel Length-Based Reference Point for Robust Optimization of Yields in Data-Poor Fisheries Management  [Not invited]

  KANNO Hayato, MATSUISHI, Takashi Fritz

  11th International Fisheries Symposium IFS2023  2023/11  Novotel Bangkok Future Park Rnasit
• Le réseau échouages régional de l’île d’Hokkaido au Japon  [Invited]

  KANNO Hayato, MATSUISHI Takashi Fritz

  25ème Séminaire du Réseau National Echouages  2023/11  La Rochelle Université  La Rochelle Université
  
• The attempt to assess the POPs impact of marine plastic debris in the gastrointestinal tracts of stranded cetaceans in Japan  [Not invited]

  Toru OedaTomoya, SunouchiTatsuya, KunisueAyaka T, MatsudaTakashi Matsuishi FKeiko, NishimaniwaTadasu K, YamadaYuko Tajima

  The 16th Asian Society of Conservation Medicine Conference  2023/10  Heavichi Hotel & Resort Jeju, Jeju Island, Republic of Korea  Asian society of conservation medicine
  
• Bootstrapping: An approach to validating important value in fisheries management  [Not invited]

  Wiwiet Teguh Taufani, MATSUISHI Takashi Fritz

  Global Center for Food, Land and Water Resources (GCF) International Symposium 2023  2023/09  Auditorium, Hokkaido University
• Data-poor fisheries management: robust optimization of yields  [Not invited]

  KANNO Hayato, MATSUISHI, Takashi Fritz

  Global Center for Food, Land and Water Resources (GCF) International Symposium 2023  2023/09  Auditorium, Hokkaido University
• Assessment of trash fish supplies originating from trawlers under tropical multispecies fisheries for global sustainable utilization  [Not invited]

  Jeeratorn Yuttharax, MATSUISHI Takashi Fritz

  Global Center for Food, Land and Water Resources (GCF) International Symposium 2023  2023/09  Auditorium, Hokkaido University
• Estimation of the spatiotemporal distribution of fish and fishing grounds from surveillance information using machine learning: the case of short mackerel (Rastrelliger brachysoma) in the Andaman Sea, Thailand  [Not invited]

  Chonlada Meeanan, MATSUISHI Takashi Fritz

  Global Center for Food, Land and Water Resources (GCF) International Symposium 2023  2023/09  Auditorium, Hokkaido University
• Applying a length-based method for stock assessment of data-limited Encrasicholina species of the Tanzanian coastal marine waters  [Not invited]

  Changoma Fransis Marko, MATSUISHI Takashi Fritz

  Global Center for Food, Land and Water Resources (GCF) International Symposium 2023  2023/09  Auditorium, Hokkaido University
• Comparative transcriptomics shows the evolutionary origin of acoustic fat bodies through a trade-off with skull muscles in toothed whales  [Not invited]

  竹内颯, 松石隆, 早川卓志

  日本遺伝学会 第95回大会  2023/09  くまもと県民交流館パレア 9F・10F
• Horizontal gene transfer evolution from marine bacteria to gut microbiome in cetacean lipid digestive adaptation  [Not invited]

  Hayate Takeuchi, Takashi Fritz Matsuishi, Takashi Hayakawa

  日本進化学会第25回大会  2023/09  琉球大学千原キャンパス共通教育棟（8月31日-9月1日） 沖縄県市町村自治会館（9月2-3日）
• 北海道沿岸に生息するネズミイルカの相対成長  [Not invited]

  名倉のどか, 松田純佳, 松石 隆

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• ネズミイルカ腺性下垂体の濾胞星状細胞とその増殖能に関する研究  [Not invited]

  池澤 泉, 佐々木基樹, 堂元菜々実, 石黒佑紀, 松田純佳, 黒田実加, 松石 隆, 田島木綿子, 北村延夫

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• 漂着鯨類消化管内の海洋プラスチックの由来同定と種間比較  [Not invited]

  大枝 亮, 松田純佳, 松石 隆, 西間庭恵子, 田島木綿子

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• ストランディング個体計測データを用いた鯨類の体長－尾鰭幅間の関係性の比較  [Not invited]

  生田元希, 菅野隼人, 松田純佳, 小林万里, 松石 隆

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• 日本周辺海域におけるコマッコウ属の胃内容物  [Not invited]

  松田純佳, 松石 隆, 能登文香, 天野雅男, 田島木綿子, 山田 格

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• Stranding Records along the coast of Hokkaido in 2022.  [Not invited]

  Takashi F. Matsuishi, Ayaka T. Matsuda, Mika Kuroda, Hayate Takeuchi, Natsumi Shibata, Nodoka Nagura, Nanami Doumoto, Motoki Sasaki, Mari Kobayashi

  日本セトロジー研究会第33回（佐世保）大会  2023/06
• Gap passability estimation in harbour porpoises for preventing bycatch in set nets  [Not invited]

  Natsumi Shibata, Seiichi Kaji, Masatoshi Tsunokawa, Takashi F. Matsuishi

  The 33rd Annual Meeting of The Cetology Study Group of Japan Sasebo  2023/06  佐世保市山澄地区コミュニティセンター
• データ不足資源のためのサイズ選択的管理  [Not invited]

  菅野隼人, 松石隆

  令和5 年度日本水産学会春季大会  2023/03
• 北海道沿岸における鯨類ストランディングレコード  [Not invited]

  松石 隆, 松田純佳, 黒田実加

  令和5年度日本水産学会大会春季大会  2023/03  東京海洋大学
• Genome co-evolution of host-gut microbiome through cetacean aquatic adaptation  [Not invited]

  Takeuchi Hayate, Matsuishi Takashi Fritz, Hayakawa Takashi

  第70回 日本生態学会大会 （仙台大会）  2023/03  仙台国際センター（仙台）  日本生態学会
  
• 定置網での混獲防止を目的としたネズミイルカの間隙認知に関する再検討  [Not invited]

  柴田夏実, 梶 征一, 角川 雅俊, 松石隆

  2022年度勇魚会シンポジウム  2022/12  名古屋港ポートビル  勇魚会
  
• ストランディング個体外部形態計測データを用いた化石鯨類の尾鰭幅の推定  [Not invited]

  生田元希, 菅野隼人, 松田純佳, 新村龍也, 小林万里, 松石隆

  2022年度勇魚会シンポジウム  2022/12  名古屋港ポートビル  勇魚会
  
• Attempts to identify fishing gears in stranded cetacean with entangled nets and hooked angling gear  [Not invited]

  Makoto Tomiyasu, Yuri Takenaka, Yasuzumi Fujimori, Ayaka Matsuda, Takashi F. Matsuishi

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Immunohistochemical study on follicle-stellate cells in the adenohypophysis of harbor porpoises, Phocoena phocoena  [Not invited]

  Izumi Ikezawa, Motoki Sasaki, Nanami Domoto, Yuki Ishiguro, Ayaka T. Matsuda, Mika Kuroda, Takashi F. Matsuishi, Yuko Tajima, Nobuo Kitamura

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Temporal trends and interspecies comparison of POPs in Dall’s porpoise (Phocoenoides dalli) and Melon-headed whale (Peponocephala electra)  [Not invited]

  Tomoya Sunouchi, Honoka Kikuchi, Kana Egashira, Akitoshi Goto, Mari Ochiai, Takashi Matsuishi, Yuko Tajima, Tadasu K. Yamada, Shinsuke Tanabe, Tatsuya Kunisue

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Does the tongue of odontocetes change with growth?  [Not invited]

  Junji Shindo, Ayumi Okada, Ayaka Matsuda, Mika Kuroda, Takashi Matsuishi

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Dietary analyses on a mass-stranding event of Dall’s porpoise (Phocoenoides dalli) in Hokkaido, Japan.  [Not invited]

  Ayaka T. Matsuda, Ayano Kuwagaki, Mari Kobayashi, Takashi F. Matsuishi

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Stranding Records along the coast of Hokkaido in 2021  [Not invited]

  Takashi F. Matsuishi, Ayaka T. Matsuda, Mika Kuroda, Nanami Domoto, Mari Kobayashi

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Morphological and molecular profiles of two Pseudaliid nematodes from the lung and air sinuses of the harbor porpoise  [Not invited]

  Shuhei Harada, Hirotaka Katahira, Ayaka Matsuda, Akira Shiozaki, Takashi F. Matsuishi

  32nd Annual Meeting of the Cetology Study Group of Japan  2022/06  Fuji Exchange Plaza  The Cetology Study Group of Japan
  
• Cetacean stranding and bycatch in Hokkaido, Japan  [Not invited]

  Matsuishi Takashi Fritz

  2nd Japan and Malaysia Online international Exchange Symposium  2021/12  Online
• Small-scale artisanal fisheries and its management  [Invited]

  Matsuishi Takashi Fritz

  ASEAN-FEN Webinar 2021  2021/12  Online  ASEAN Fisheries Education Network
  
• Verification of the evolutionary origin of acoustic adipose tissue in the order Cetacea by whole gene expression analysis

  Takeuchi Hayate, Matsuishi Takashi Fritz, Hayakawa Takashi

  2021年度勇魚会シンポジウム  2021/12  Online  勇魚会
  
• Histological structure, steroidogenesis and iron transport in the placenta of the Pacific white-sided dolphin (Lagenorhynchus obliquidens)  [Not invited]

  Domoto Nanami, Sasaki Motoki, Ishiguro Yuki, Matsuda T. Ayaka, Kuroda Mika, Tajima Yuko, Matsuishi, Takashi Fritz, Kitamura Nobuo

  31st Annual Meeting of the Cetology Study Group of Japan,Online  2021/12  Online  Cetology Study Group of Japan
  
• A method for quantifying the social relationships between captive dolphins using individual distance at the synchronous breathing  [Not invited]

  TAGE Kaori, MATSUISHI Takashi Fritz, ISHIKAWA Hajime

  31st Annual Meeting of the Cetology Study Group of Japan,Online  2021/12  Online  Cetology Study Group of Japan
  
• Stranding Records along the coast of Hokkaido in 2019-2020  [Not invited]

  MATSUISHI Takashi Fritz, MATSUDA T. Ayaka, KURODA Mika, KOBAYASHI Mari

  31st Annual Meeting of the Cetology Study Group of Japan,Online  2021/12  Online  Cetology Study Group of Japan
  
• Acoustical property in the junk of a sperm whale calf  [Not invited]

  KURODA Mika, MATSUISHI Takashi Fritz

  31st Annual Meeting of the Cetology Study Group of Japan,Online  2021/12  Online  Cetology Study Group of Japan
  
• Placental structure and steroidogenesis of a Pacific white-sided dolphin (Lagenorhynchus obliquidens)  [Not invited]

  Domoto Nanami, Sasaki Motoki, Ishiguro Yuki, Matsuda T. Ayaka, Kuroda Mika, Tajima Yuko, Matsuishi Takashi Fritz, Kitamura Nobuo

  The 14th Asian Society of Conservation Medicine / The 27th Japanese Society of Zoo and Wildlife Medicine 2021Joint Conference Front Line of One Health in Asia  2021/09  Online&Sapporo
• Cetacean strandings in Hokkaido and its survey regime.  [Not invited]

  Matsuishi Takashi Fritz, Matsuda Ayaka, Kuroda Mika

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate  Japanese Scociety of Fisheries Science
  
• Quantification of social relationship indices based on inter-individual distances in captive bottlenose dolphins, bottlenose dolphins and Pacific white-sided dolphins  [Not invited]

  Tage Kaori, Matsuishi Takashi Fritz

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate  Japanese Scociety of Fisheries Science
  
• The fisheries assessment on the arrow-shaped trap fishery in Tonle Sap Lake, Cambodia, using the Fishery Performance Indicators tools  [Not invited]

  Thuch Panha, Matsuishi Takashi Fritz

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate Campus, Hokkaido University  Japanese Scociety of Fisheries Science
  
• Best Practice in combating Illegal, Unreported and Unregulated Fishing in Thailand  [Not invited]

  Chonlada Meeanan, Matsuishi Takashi Fritz

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate Campus, Hokkaido University  Japanese Scociety of Fisheries Science
  
• The stock assessment of elasmobranch in Southeast Asia using yield per recruit and spawning per recruit analyses  [Not invited]

  Supapong Pattarapongpan, Matsuishi Takashi Fritz

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate Campus, Hokkaido University  Japanese Scociety of Fisheries Science
  
• Validation of a stock assessment method based on catch length composition for data deficient stocks  [Not invited]

  Kanno Hayato, Matsuishi Takashi Fritz

  2021 Autumn Conference of the Japanes Society of Fisheries Science  2021/09  Hakodate Campus, Hokkaido University  Japanese Scociety of Fisheries Science
  
• Anatomical characteristics of the forelimb of Hubbs’ beaked whales (Mesoplodon carlhubbsi)  [Not invited]

  Domoto Nanami, Sasaki Motoki, Tsuzuki Nao, Nakagun Shotaro, Matsuishi Takashi Fritz, Matsuda Ayaka, Kuroda Mika, Tajima Yuko, Kitamura Nobuo

  The 2021 Annual Meeting of the Mammal Society of Japan  2021/08  Online
• Enlarged neural spine of fossil porpoise from Hokkaido.  [Not invited]

  Morita Naoki, Murakami Mizuki, Nakajima Yasuhisa, Shimada Chieko, Hikida Yoshinori, Tajima Yuko, Suzuki Kunihiro, Tajiri Rie, Suzuki Daisuke, Matsuishi Takashi Fritz, Kobayashi Mari

  The 2021 Annual Meeting The Palaeontological Society of Japan  2021/07  Online  Palaeontological Society of Japan
  
• Exploring the potential of Copepod fisheries as a lower trophic level fishery  [Not invited]

  Yamaguchi Atsushi, Matsuishi Takashi, Mukai Toru, Fujimori Yasuzumi, Beppu Fumiaki, Hosokawa Masashi

  2021年度日仏海洋学会学術研究発表会  2021/06  Online  日仏海洋学会
  
• Morphological study of the forelimbs of the humpback whale, Mesoplodon carlhubbsi  [Not invited]

  Domoto Nanami, Sasaki Motoki, Tsuzuki Sunao, Nakagori Shotaro, Matsuishi Takashi, Kuroda Mika, Matsuda Ayaka, Tajima Yuko, Kitamura Nobuo

  日本獣医解剖学会／獣医解剖分科会 春期学術集会 第１回 日本獣医解剖アカデミア  2021/03  Online  北海道大学 大学院獣医学研究院 基礎獣医科学分野 解剖学研究室
  
• Individual distance at synchronous breathing relating to the social relationship between harbor porpoises  [Not invited]

  TAGE Kaori, SUZUKI Honoka, KAJI Seiichi, TSUNOKAWA Masatoshi, MATSUISHI Takashi Fritz

  Online Symposium 2020 of Isanakai  2020/12  オンライン
• 低次栄養段階生物を対象とした「かいあし漁業」の可能性を探る  [Not invited]

  山口篤, 松石隆, 向井徹, 藤森康澄, 別府史章, 細川雅史

  令和２年度日本水産学会北海道支部大会  2020/12  オンライン
• Migration and foraging areas of baleen whales revealed by radiocarbon isotopic signatures of baleen plates  [Not invited]

  Matsuda A, Nagata T, Matsuishi T, Tajima Y, Yamada K T, Miyairi Y, Yokoyama Y

  The 2nd World Marine Mammal Conference  2019/12  Centre de Convencions Internacional de Barcelona, Barcelona  European Cetacean Society, The Society for Marine Mammalogy
  
• The growth and sex maturation parameters of harbor porpoise around Hokkaido, Japan  [Not invited]

  Matsui N, Sasaki M, Kobayashi M, Shindo J, Matsuishi T

  The 2nd World Marine Mammal Conference  2019/12  Centre de Convencions Internacional de Barcelona, Barcelona  European Cetacean Society, The Society for Marine Mammalogy
  
• Clicks-sound production and frequency determining mechanism in the head of small toothed whales; functional morphology with acoustical interpretation  [Not invited]

  Kuroda-Matsuo M, Sasaki M, Yamada TK, Miki N, Matsuishi T

  The 2nd World Marine Mammal Conference, Spain  2019/12  Centre de Convencions Internacional de Barcelona, Barcelona  European Cetacean Society, The Society for Marine Mammalogy
  
• ハッブスオウギハクジラ (Mesoplodon carlhubbsi)メロンの形態学的解析  [Not invited]

  Miyazaki A, Sasaki M, Kuroda M, Matsuishi T, Tajima Y, Yamada TK, Nakagun S, Suzuki C, Tsuduki N, Kitamura N

  日本哺乳類学会2019年大会  2019/09  東京  日本哺乳類学会
  
• ハッブスオウギハクジラ(Mesoplodon carlhubbsi)頭部のCT画像および肉眼解剖学的解析  [Not invited]

  宮崎彩乃, 佐々木基樹, 黒田実加, 松石隆, 田島木綿子, 山田格, 中郡翔太郎, 鈴木千尋, 都築直, 北村延夫

  第162回日本獣医学会学術集会  2019/09  つくば市  日本獣医学会
  
• A new species of a beaked whale (Berardius) and role of a stranding network for the discovery  [Not invited]

  Matsuishi T F, Matsuda A, Kuroda M, Matsui N, Abe S, Nakagun S, Kobayashi M, Kitamura S, Yamada K T, Tajima Y, Mead J G

  Third Asian Marine Mammal Stranding Network Symposium & Workshop, Marine Mammal Stranding Symposium  2019/09  Kaohsiung  Ocean affares council, National academy of marine research, Taiwan
  
• Assessments of fisheries management of small-scale fisheries --Evidence from blue-swimming crab fisheries in Kep, Cambodia --  [Not invited]

  Takano K, Sornkliang J, Matsuishi TF

  International Symposium "Biodiversity in the Global Food System"  2019/07  Sapporo, Hokkaido  Hokkaido university
  
• Evaluating the effectiveness of real-time closure for sustainable capture fisheries  [Not invited]

  Munehara M, Kaewnern M, Matsuishi TF

  International Symposium "Biodiversity in the Global Food System"  2019/07  Sapporo, Hokkaido  Hokkaido university
  
• Designing the survey for consumer's willingness to pay for blue swimming crab digital traceability in Thailand  [Not invited]

  Chavalittumrong P, Kaewnern M, Matsuishi TF

  International Symposium "Biodiversity in the Global Food System"  2019/07  Sapporo, Hokkaido  Hokkaido university
  
• Cytotoxicity and proteomics analyses of POPs using cetacean fibroblats  [Not invited]

  Ochiai M, Kurihara N, Matsuda A, Matsuishi T, Nishida S, Kunisue T, Iwata H

  1st Korea-Japan Joint Symposium on Adverse Outcome Pathways: From Exposome to Phenotypic Effects  2019/07  松山市
• Did they eat dolphin at the jomon period from the Mawaki archaelological site in Japan!? - Evaluation of exploitation of marine mammals in Japanese archipelago by lipid analysis in pottery-  [Not invited]

  Miyata Y, Miyauchi N, Matsuzaki H, Yoshida K, Mitani Y, Matsuishi T, Muramoto S, Takada H, Hirakouchi T, Kobayashi K, Namkamura K Horiuchi A

  日本セトロジー研究会 第30回（東京）記念大会  2019/06  東京  日本セトロジー研究会
  
• Stranding records along the coast of Hokkaido in 2null18  [Not invited]

  Matsuishi T, Matsuda A, Kuroda M Matsui N, Nakagun S, Kobayashi M

  日本セトロジー研究会 第30回（東京）記念大会  2019/06  東京  日本セトロジー研究会
  
• Morphological study of the tongue of Hubbs' beaked whale  [Not invited]

  Shindo J, Nakamura M, Okada A, Nakagun S, Matsui N, Matsuda A, Matsuishi T

  日本セトロジー研究会 第30回（東京）記念大会  2019/06  東京  日本セトロジー研究会
  
• Synchronous breathing in captive harbour porpoises Phocoena phocoena  [Not invited]

  Matsui N, Matsuda A, Kuroda M, Matsuishi T

  日本セトロジー研究会 第30回（東京）記念大会  2019/06  東京  日本セトロジー研究会
  
• 小型ハクジラ類の発音器官におけるクリックスの周波数決定機構に関する音響学的検討  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  第16回内耳ひずみ研究会  2019/05  リオン株式会社講堂，東京  日本聴覚医学会
  
• オガワコマッコウを用いた水生哺乳類における発声機構の検討  [Not invited]

  小寺稜, 井上孝二, 植草康浩, 黒田実加, 小寺春人, 佐藤哲二

  第124回日本解剖学会総会・全国学術集会  2019/03  新潟市
• Diet and weaning period of Dall’s porpoise around Hokkaido, Japan  [Not invited]

  Matsuda A, Matsuishi T F

  The 34th International Symposium on Okhotsk Sea and Polar Oceans 2019  2019/02  Monbetsu  Executive Committee of Symposium
  
• 小型ハクジラ類の発音器官における周波数帯域決定過程の音響学的検討,  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  第4回北海道大学部局横断シンポジウム  2019/01  札幌市  北海道大学遺伝子制御研究所
  
• Sound production and frequency-determining mechanism in the head of toothed whales  [Not invited]

  Kuroda M, Sasaki M, Miki N, Matsuishi T

  5th annual meeting of the Society for Bioacoustics, 2018年12月9日, 熊本県市, 日本. （ポスター発表）  2018/12  Kumamoto
• Possible Fisheries Management Measures for Multispecies Fisheries  [Not invited]

  Matsuishi T

  ASEAN-FEN 8th International Fisheries Symposium - 2018 "Sustainable Fisheries and Aquaculture for the Benefits of Mankind"  2018/11  Songkhla, Thailand  ASEAN-FEN
  
• Developing of Consumer Facing Traceability (CFT) for shrimp supply chain in Mekong Delta, Vietnam: current situation and challenges  [Not invited]

  Khuu TPD, Saito Y, Tojo N, Nguyen NH, Duong TT, Matsuishi T

  ASEAN-FEN 8th International Fisheries Symposium - 2018 "Sustainable Fisheries and Aquaculture for the Benefits of Mankind"  2018/11  Songkhla  ASEAN-FEN
  
• 出動！イルカ・クジラ11null番 ～海岸線3null66㎞から視えた寄鯨の科学～  [Invited]

  Matsuishi T

  平成30年度北海道大学水産学部公開講座「海をまるごとサイエンス」  2018/08  函館市  Hokkaido university
  
• 大謀網へのネズミイルカの混獲について  [Not invited]

  Matsuishi T

  第48回北洋研究シンポジウム―北日本の定置網を取り巻く諸問題：その解決に向けて―  2018/08  函館市  水産海洋学会
  
• ネズミイルカとカズハゴンドウの頭部における周波数応答の比較  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  . 日本セトロジー研究会 第29回（福岡）大会  2018/06  福岡市
• Estimation of migration routes of humpback whale Megaptera novaeangliae and Balaenoptera acutorostrata by using carbon-14.  [Not invited]

  Matsuda A, Matsuishi T, Nagata T, Miyairi Y, Yokoyama Y

  日本セトロジー研究会 第29回（福岡）大会  2018/06  福岡市  日本セトロジー研究会
  
• Stranding Records along the coast of Hokkaido in 2null17  [Not invited]

  Matsuda A, Kuroda M, Matsui N, Maeda S, Nakagun S, Kobayashi M, Matsuishi T

  日本セトロジー研究会 第29回（福岡）大会  2018/06  福岡市  日本セトロジー研究会
  
• Diet of Pacific White-sided dolphin Lagenorhynchus obliquidens around Japan.  [Not invited]

  Matsuda A, Tajima Y, Yamada TK, Matsuishi T

  日本セトロジー研究会 第29回（福岡）大会  2018/06  福岡市  日本セトロジー研究会
  
• Clicks propagation in the head of melon-headed whale Peponocephala electra  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Matsuishi T

  2nd Oceanoise Asia  2018/06  函館市
• 北海道朱鞠内湖におけるイトウ遊漁者の消費金額  [Not invited]

  Yoshiyama T, Nakano N, Matsuishi T

  北日本漁業経済学会第46回大会  2017/11  北海道
• Evaluation of Feedback Fishery Management Strategy Applied for Mixed Species Data  [Not invited]

  Matsuishi T, Wu D, Kinashi R, Harlyan LI

  ASEAN-FEN International Fisheries Symposium - 2017 "Projecting ASEAN-FEN-plus for Sustainable Aquaculture, Fisheries and Aquatic Ecosystem."  2017/11  East Java, Indonesia  ASEAN-FEN
  
• Diet study of melon-headed whale Peponocephala electra mass-stranded in Hokota, Ibaraki, Japan  [Not invited]

  Matsuda A, Yamada KT, Tajima Y, Matsuishi T

  The Society for Marine Mammalogy's 22nd Biennial Conference on the Biology of Marine Mammals  2017/10  Nova Scotia, Canada
• Presence and behaviour of harbour porpoises around a bottom-gillnet observed by passive acoustic monitoring  [Not invited]

  Maeda S, Matsuishi T, Akamatsu T

  International Symposium "Fisheries Science for Future Generations"  2017/09  東京
• Validation of feed back management procedure applied for mixed species data  [Not invited]

  Matsuishi T, Wu D, Kinashi R, Harlyan LI

  International Symposium "Fisheries Science for Future Generations"  2017/09  東京都
• Parturition of captive harbour porpoise Phocoena phocoena in Otaru Aquarium, Japan  [Not invited]

  Matsui N, Ise N, Tsunokawa M, Kaji S, Matsuda A, Matsuishi T

  International Symposium "Fisheries Science for Future Generations"  2017/09  東京
• An overview of purse seine fisheries management in Malaysia  [Not invited]

  Harlyan LI, Matsuishi T

  International Symposium "Fisheries Science for Future Generations"  2017/09  東京都
• The Factors Affecting Import Proce of Frozen Shrimp in Japan Market: Evidences of Thailand and Vietnam  [Not invited]

  Khuu TPD, Matsuishi T

  International Symposium "Fisheries Science for Future Generations"  2017/09  東京都
• Angling for endemic fish as a conservation tool: the challenge of Miyabe charr recreational fishery in Lake Shikaribetsu, Japan  [Not invited]

  Yoshiyama T, Tsuboi J, Tabata T, Takeda K, Matsuishi T

  8th World Recreational Fisheries Conference  2017/07  Canada
• Distribution of the acoustic impedance in the head of melon-headed dolphin Peponocephala electra: the shape of rostrum and the clicks property  [Not invited]

  Kuroda M, Sasaki M, Miki N, Matsuishi T

  日本セトロジー研究会第28回(札幌)大会  2017/06  札幌市  日本セトロジー研究会
  
• Stranding Records along the coast of Hokkaido in 2null16  [Not invited]

  Matsuishi T, Matsuda A, Kuroda M, Matsui N, Maeda S, Nakagun S, Kobayashi M, Sakurai K

  日本セトロジー研究会第28回(札幌)大会  2017/06  札幌市  日本セトロジー研究会
  
• The observation of gonads of stranded harbor porpoises around Hokkaido  [Not invited]

  Matsui N, Kobayashi M, Sasaki M, Matsuishi T

  日本セトロジー研究会第28回(札幌)大会  2017/06  札幌市  日本セトロジー研究会
  
• Presence and behaviour of harbour porpoises around a bottom-gillnet observed by passive acoustic monitoring  [Not invited]

  Meda S, Matsuishi T, Sakurai K, Akamatsu T

  日本セトロジー研究会第28回(札幌)大会  2017/06  札幌市  日本セトロジー研究会
  
• Morphological study on the surface of tongue of newborn Minke whale(Balaenoptera acutorostrata)  [Not invited]

  Ishii M, Shindo J, Okada A, Matsuda A, Matsui N, Matsuishi T

  日本セトロジー研究会第28回(札幌)大会  2017/06  札幌市  日本セトロジー研究会
  
• Ten years’ activities of Stranding Network Hokkaido  [Not invited]

  Matsuishi T

  日本セトロジー研究会第28回(札幌)大会 シンポジウム  2017/06  札幌市  日本セトロジー研究会
  
• Temporal trends of organohalogen compounds in toothed whales stranded at coastal areas in Japan  [Not invited]

  Egashira K, Ochiai M, Tue NM, Matsuda A, Matsuishi T, Tajima Y, Yamada T, Isobe T, Tanabe S, Kunisue T

  第26回環境化学検討会  2017/06  静岡市
• English Title Not Available  [Not invited]

  Yokoyama Y, Miyairi Y, Matsuda A, Matsuishi T, Nagata T

  日本地球惑星科学連合JpGU-AGU Joint Meeting 2017  2017/05  千葉市
• English Title Not Available  [Not invited]

  Yoshiyama T, Tsuboi J, Matsuishi T

  平成29年度日本水産学会春季大会  2017/03  東京都  日本水産学会
  
• ネズミイルカ頭部におけるクリックス伝搬経路の音響学的妥当性の検討  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  2016年度勇魚会シンポジウム  2016/12  名古屋市
• Hepatic trematode induces striking ductular reaction in a Hubb's beaked whale (Mesoplodon carlhubbsi)  [Not invited]

  Nakagun S, Shiozaki A, Ochiai M, Matsuda A, Matsuishi T, Horiuchi N, Kobayashi Y

  2016 American College of Veterinary Pathologists (ACVP) and American Society for Veterinary Clinical Pathology (ASVCP) Concurrent Annual Meeting  2016/12  New Orleans
• Tissue physical property in the head of small toothed whales: effect on the clicks propagation and directivity  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Amano M, Yamada TK, Matsuishi T

  5th Joint Meeting : Acoustical Society of America and Acoustical Society of Japan  2016/12  Honolulu
• Passive acoustic monitoring of Harbour porpoise Phocoena phocoena around a bottom gillnet  [Not invited]

  Maeda S, Matsuishi T

  10th international conference of Asian Fisheries Acoustic Society AFAS2016  2016/11  Hakodate
• Acoustical property in the head of toothed whale influence the directivity of clicks  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Amano M, Yamada TK, Matsuishi T

  10th international conference of Asian Fisheries Acoustic Society AFAS2016  2016/11  Hakodate
• New higher education for solving the issues of global food resources  [Not invited]

  Matsuishi T

  International Fisheries Symposium – IFS 2016  2016/10  Phu Quoc Island  ASEAN-FEN
  
• Significance of the diet analysis of cetaceans for ecosystem-based fisheries management  [Not invited]

  Matsuda A, Matsuishi T

  International Fisheries Symposium – IFS 2016  2016/10  Phu Quoc Island  ASEAN-FEN
  
• 北海道における鯨類のストランディング  [Invited]

  Matsuishi T

  第16回漂着物学会北海道大会  2016/10  札幌市  漂着物学会
  
• English Title Not Available  [Invited]

  Matsuishi T, Ito K

  日本生態心理学会第6回大会  2016/09  札幌市
• Sound propagation in the head of small toothed whales: combining tissue physical properties and anatomical structure  [Invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Uekusa Y, Amano M, Kobayashi M, Yamada TK, Matsuishi T

  8th European Conference on Behavioural Biology (ECBB2016)  2016/07  Vienna
• Observation of Harbour porpoise Phocoena phocoena until bycatch in a set net by using passive acoustic monitoring  [Not invited]

  Maeda S, Matsuishi T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Stomach contents of melon-headed whale (Peponocephala electra) mass-stranded in Hokota, Ibaraki, Japan  [Not invited]

  Matsuda A, Yamada TK, Yuko Tajima, Matsuishi T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Diet of harbour porpoise (Phocoena phocoena) in the coastal water around Hokkaido  [Not invited]

  Matsui N, Matsuda A, Matsuishi T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Contribution of propagation characteristics in the head of toothed whale on clicks directivity  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Amano M, Yamada TK, Matsuishi T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Stranding records along the coast of Hokkaido in 2null15  [Not invited]

  Matsuishi T, Matsuda A, Kuroda M, Matsui N, Nakagun S, Kobayashi M

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Morphological observations on the tongue and marginal papillae of the Newborn Killer whale (Orcinus orca)  [Not invited]

  Shindo J, Okada A, Matsuda A, Kuroda M, Matsuishi T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• Accumulation Feature of Organohalogen Compounds in Baleen and Toothed Whales Stranded in Coastal Areas off Hokkaido  [Not invited]

  Egashira K, Isobe T, Ochiai M, Matsuishi T, Matsuda A, Yamada TK, Tajima Y, Tanabe S, Kunisue T

  日本セトロジー研究会 第27回（寺泊）大会  2016/06  寺泊町  日本セトロジー研究会
  
• ミヤベイワナ・サクラマス・ニジマスの 釣られやすさの違い  [Not invited]

  芳山拓, 坪井潤一, 松石 隆

  平成28年度日本水産学会春季大会  2016/03  東京都  日本水産学会
  
• 然別湖における遊漁対象魚種の資源尾数推定  [Not invited]

  芳山拓, 坪井潤一, 山本佑樹, 松石 隆

  平成28年度日本水産学会春季大会  2016/03  東京都  日本水産学会
  
• Comparison of feeding habits among five small odontocetes around Hokkaido, Japan  [Not invited]

  Matsuda A, Matsuishi T

  21st Biennial Conference on the Biology of Marine mammals  2015/12  San Francisco
• The acoustical anatomy in the head of small toothed whales: connect the physical property of clicks with anatomical structure  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Uekusa Y, Amano M, Kobayashi M, Yamada TK, Matsuishi T

  21st Biennial Conference on the Biology of Marine mammals  2015/12  San Francisco
• Presence and behaviour of harbour porpoises around a set net by using passive acoustic monitoring  [Not invited]

  Higashisaka H, Matsuishi T, Akamatsu T

  The Ninth Annual Meeting of Asian Fisheries Acoustics Society, AFAS2015  2015/11  Bangkok
• Contamination levels and temporal trends of legacy and emerging POPs accumulated in small cetacean species from Japan  [Not invited]

  Isobe T, Tajima Y, Yamada TK, Amano M, Matsuishi T, Kunisue T, Tanabe S

  PICES 2015 Annual Meeting —Change and Sustainability of the North Pacific—  2015/10  Qingdao
• Persistent environmental pollutants in Asian coastal waters---contamination of dolphin brains  [Not invited]

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Makara M, Amano M, Matsuishi T, Iwata H, Tanabe S

  8th Asian Society of Conservation Medicine Meeting, Myanmar 2015  2015/10  Yangon
• チューニングVPAを用いた宮崎県海域のアカアマダイの資源評価  [Not invited]

  齋藤友則, 中村充志, 松石隆

  2015年度水産海洋学会研究発表大会  2015/10  北海道  水産海洋学会
  
• ストランディングネットワーク北海道の紹介  [Not invited]

  松石隆

  第21回日本野生動物医学会大会  2015/08  江別市  日本野生動物医学会
  
• Contribution of propagation characteristics in the head of toothed whale on clicks directivity  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Uekusa Y, Amano M, Isobe T, Kobayashi M, Yamada TK, Matsuishi T

  Vth International Wildlife Management Congress  2015/07  Sapporo
• Seasonal distribution of Dall’s porpoises Phocoenoides dalli in Tsugaru Strait, Japan  [Not invited]

  Kambayashi J, Matsuda A, Matsuishi T

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• Stomach contents of striped dolphin (Stenella coeruleoalba) mass-stranded in Minamisatsuma, Kagoshima, Japan  [Not invited]

  Matsuda A, Yamada TK, Tajima Y, Kunisue T, Amano M, Matsuishi T

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• The process of pregnancy and birth delivery of harbour porpoise Phocoena phocoena in Otaru aquarium  [Not invited]

  Matsui N, Ise S, Tsunokawa M, Seiichi K, Matsuishi T

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• Acoustical investigation of the clicks propagating process in the head of pygmy sperm whale, Kogia breviceps.  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Uekusa Y, Matsuishi T

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• Retrospective analysis of persistent organic pollutants in small toothed whales from Japanese coasts  [Not invited]

  Isobe T, Kunisue T, Tanabe S, Amano M, Matsuishi T, Yamada TK, Tajima Y

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• Stranding Records along the coast of Hokkaido in 2null14  [Not invited]

  Matsuishi T, Matsuda A, Kuroda M, Kambayashi J, Uni Y, Kobayashi M M

  日本セトロジー研究会第26回（あきた白神）大会  2015/07  八峰町  日本セトロジー研究会
  
• 洞爺湖産ヒメマス資源動向の将来予測  [Not invited]

  蘇宇, 傳法隆, 松石隆

  平成27年度日本水産学会春季大会  2015/03  東京都  日本水産学会
  
• 混合魚種漁獲統計にもとづく余剰生産モデルパラメータ推定の妥当性  [Not invited]

  松石隆, 呉登科

  平成27年度日本水産学会春季大会  2015/03  東京都  日本水産学会
  
• 然別湖におけるミヤベイワナ遊漁の持続可能性の検討  [Not invited]

  芳山拓, 坪井潤一, 松石隆

  平成27年度日本水産学会春季大会  2015/03  東京都  日本水産学会
  
• 然別湖におけるミヤベイワナの資源量推定  [Not invited]

  芳山拓, 坪井潤一, 松石隆

  平成27年度日本水産学会春季大会  2015/03  東京都  日本水産学会
  
• The relationship between the structure of sound-propagating organs and the acoustic properties of clicks in small toothed whales  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 植草康浩, 磯部友彦, 天野雅男, 小林万里, 山田格, 松石隆

  海洋音響学会2015年研究発表会  2015/05  東京  海洋音響学会
  
• Analysis and comparison of metal concentrations in organs of cetacean stranded at coastal area of Hokkaido  [Not invited]

  Kawata D, Matsuda A, Matsuishi T, Nakayama S, Ishizuka M,AsakawaM, Noda J

  第21回日本野生動物医学会大会  2015/07  江別市  日本野生動物医学会
  
• 然別湖における遊漁対象魚種のＣＰＵＥ標準化と資源動向の推定  [Not invited]

  芳山 拓, 武田耕次, 田畑貴章, 松石 隆

  平成26年度日本水産学会北海道支部大会  2014/12  函館市  日本水産学会
  
• 定置網近傍におけるネズミイルカの行動  [Not invited]

  東坂博樹, 松石隆, 赤松友成

  平成26年度日本水産学会北海道支部大会  2014/12  函館市  日本水産学会
  
• PCBs, PBDEs and their hydroxylated metabolites in the brain of free-ranging toothed and baleen whales  [Not invited]

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Makara M, Amano M, Matsuishi T, Iwata H, Tanabe S

  6th Bilateral Seminar Italy-Japan “Physical and Chemical Impacts on Marine Organisms Supporting Blue Growth in meaningful mutual symbiosis with the marine environment”  2014/11  Palermo
• Combining Acoustic Survey and Age-based Model for Stock Assessment  [Not invited]

  Matsuishi T

  The Eighth Annual Meeting of Asian Fisheries Acoustics Society, AFAS2014 -- The International Conference on Underwater Acoustics for Sustainable Fisheries in Asia  2014/11  Taiwan
• Acoustic consideration on the relationship between the structure of sound-propagation organ and clicks properties in small toothed whales  [Invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Uekusa Y, Isobe T, Amano M, Yamada TK, Matsuishi T

  The Eighth Annual Meeting of Asian Fisheries Acoustics Society, AFAS2014 -- The International Conference on Underwater Acoustics for Sustainable Fisheries in Asia  2014/11  Taiwan
• 北海道で座礁死したシャチの炭素、窒素、酸素安定同位体比と水銀の分析  [Not invited]

  遠藤哲也, 木村治, 佐藤里理, 小林万里, 松田純佳, 松石隆, 原口浩一

  平成26年日本水産学会秋季大会  2014/09  福岡県  日本水産学会
  
• ネズミイルカの発音器官における超音波の伝搬過程  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  日本音響学会2014年秋季研究発表会  2014/09  札幌市
• The acoustical examination between the process of sound emission and the habitat environment using P. phocoena and S. coeruleoalba  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Matsuishi T

  日本セトロジー研究会第25回（松山）大会  2014/05  松山市  日本セトロジー研究会
  
• The stomach contents in three small odontoceti species around Hokkaido  [Not invited]

  Matsuda A, Matsuishi T

  日本セトロジー研究会第25回（松山）大会  2014/05  松山市  日本セトロジー研究会
  
• Environmental preference of Pacific white-sided dolphin in Tsugaru Strait  [Not invited]

  Maezawa T, Higashisaka H, Ishii M, Kitagawa M, Tashiro G, Kuroda M, Matsuda A, Matsuishi T

  日本セトロジー研究会第25回（松山）大会  2014/05  松山市  日本セトロジー研究会
  
• Accumulation features of organohalogen metabolites in the blood and brain of toothed and baleen whales  [Not invited]

  Ochiai M, Nomiyama K, Isobe T, Yamada TK, Tajima Y, Makara M, Amano M, Matsuishi T, Tanabe S

  日本セトロジー研究会第25回（松山）大会  2014/05  松山市  日本セトロジー研究会
  
• 定置網近傍におけるネズミイルカの出現  [Not invited]

  東坂博樹, 松石隆, 赤松友成

  日本セトロジー研究会第25回（松山）大会  2014/05  松山市  日本セトロジー研究会
  
• ヒゲクジラ・ハクジラ類におけるOH-PCBsおよびOH-PBDEsの蓄積特性と脳移行  [Not invited]

  落合真理、野見山桂、磯部友彦、山田格、田島木綿子、真柄真実、天野雅男、松石隆、田辺信介

  第23回環境科学討論会  2014/05  京都市
• 洞爺湖産ヒメマスの自然死亡係数の推定  [Not invited]

  蘇 宇, 傳法 隆, 松石 隆

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• 然別湖と洞爺における遊漁者の満足度と釣果関係  [Not invited]

  芳山 拓, 坪井潤一, 蘇 宇, 松石 隆

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• 北海道南海域におけるコビレゴンドウ発見位置と海洋環境との関係―海洋環境に依存しない!?―  [Not invited]

  東坂博樹, 馬場真哉, 佐々木裕子, 松石隆

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• 西湖におけるクニマスの資源量推定  [Not invited]

  坪井潤一, 松石 隆, 渋谷和治, 青柳敏裕, 岡崎巧, 高橋一孝

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• TAC期中改定によるスケトウダラ太平洋系群の資源管理効果への影響の評価  [Not invited]

  松石 隆, 村上 祐一

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• ネズミイルカとスジイルカの発音器官における音響学的比較  [Not invited]

  黒田実加, 佐々木基樹, 山田一孝, 三木信弘, 松石隆

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• 北海道周辺海域に生息する小型ハクジラ3種の食性  [Not invited]

  松田純佳, 遠藤哲也, 松石隆

  平成26年度日本水産学会春季大会  2014/03  函館市  日本水産学会
  
• MSC漁業審査規準を用いたスケトウダラ太平洋系群を対象とする漁業の持続可能性  [Not invited]

  福武千尋, 永野一郎, 松石隆

  平成26年度日本水産学会春季大会  2014/03  北海道  日本水産学会
  
• Geographical Distribution of Acoustic Impedance in the Head of Harbour Porpoise Phocoena phocoena  [Not invited]

  Kuroda M, Sasaki M, Yamada K, Miki N, Matsuishi T

  The Seventh Annual Meeting of Asian Fisheries Acoustics Society, AFAS2013, The International Conference on Underwater Acoustics for Sustainable Fisheries in Asia  2013/11  東京都
• 安定同位体分析による日本周辺おけるネズミイルカの季節的移動パターン推定の試み  [Not invited]

  田口美緒子, 吉岡基, 淀太我, 松石隆, 南浩史

  平成25年度公益社団法人日本水産学会秋季大会  2013/09  三重県  日本水産学会
  
• 1992年から2002年における北海道松前町の鯨類漂着記録  [Not invited]

  松田純佳, 松石隆, 山田格

  第24回日本セトロジー研究会  2013/05  富山県  日本セトロジー研究会
  
• ネズミイルカにおけるクリックス放射過程の音響学的検証  [Not invited]

  黒田実加, 佐々木基樹, 三木信弘, 松石隆

  第24回日本セトロジー研究会  2013/05  富山県  日本セトロジー研究会
  
• 北海道沿岸における2012年のストランディングレコード  [Not invited]

  松石隆, 松田純佳, 黒田実加

  第24回日本セトロジー研究会  2013/05  富山県  日本セトロジー研究会
  
• スケトウダラのTAC、ABCと漁獲量の関係  [Not invited]

  松石隆, 村上祐一

  平成25年度日本水産学会春季大会  2013/03  東京都  日本水産学会
  
• 単一種VPAと多種VPAの資源量推定精度 ―仮想生態系モデルを用いた比較―  [Not invited]

  小野雄大, 松石隆

  平成25年度日本水産学会春季大会  2013/03  東京都  日本水産学会
  
• VPAを用いた洞爺湖産ヒメマスの資源量推定  [Not invited]

  蘇宇, Sweke EA, 傳法隆, 春名寛幸, 松石隆

  平成25年度日本水産学会春季大会  2013/03  東京都  日本水産学会
  
• タイヘイヨウアカボウモドキの舌形態  [Not invited]

  進藤順治, 岡田あゆみ, 三村春奈, 松田純佳, 松石 隆

  第19回日本野生動物医学会大会  2013/08  京都府  日本野生動物医学会
  
• ネズミイルカ(Phocoena phocoena)、スジイルカ(Stenella coeruleoalba)、カズハゴンドウ(Peponocephala electra)における水銀汚染の経年変化  [Not invited]

  磯部 友彦, 安田 悠佑, 板井 啓明, 宝来 佐和子, 松石 隆, 北村 志乃, 松田 純佳, 小林 万里, 天野 雅男, 田島 木綿子, 山田 格, 田辺 信介

  日本セトロジー研究会第23回大会  2012/06  松島町  日本セトロジー研究会
  
  Download
• 津軽海峡における鯨類の構成種と地理的・季節的分布についてⅨ ～鯨類目視調査10年間の報告～  [Not invited]

  市森 大地, 杉谷 舞, 小島 千里, 石森 謙太郎, 浦杉 朝子, 鈴木 駿介, 田所 洋平, 松石 隆

  日本セトロジー研究会第23回（松島）大会大会  2012/06  松島町
  Download
• 北海道におけるイシイルカ漂着個体の胃内容物  [Not invited]

  松田純佳, 松石隆

  日本セトロジー研究会第23回（松島）大会大会  2012/06
  Download
• 北海道沿岸における2007～2011年のストランディングレコード  [Not invited]

  松石隆, 松田純佳

  日本セトロジー研究会第23回（松島）大会  2012/06  松島町
  Download
• 134Cs and 137Cs in toothed and baleen whales stranded on the coast of Hokkaido  [Not invited]

  遠藤哲也, 木村治, 松石隆, 藤井美妃, 中村次也

  日本薬学会第132年会（札幌）  2012/03  札幌市
• 情報理論を用いたサンマ漁況予報の有用性の評価  [Not invited]

  馬場真哉, 松石隆

  日本水産学会大会講演要旨集  2012/03
• ズワイガニの資源量直接推定における海域層化方法の改善(その2)  [Not invited]

  上田祐司, 松石隆, 木下貴裕

  日本水産学会大会講演要旨集  2012/03
• ライントランセクト法の枠組みにおけるデザインベースとモデルベースによる個体数推定法の正確度・精度・頑健性に与える要因のシミュレーションによる検討  [Not invited]

  柴田泰宙, 松石隆, 北門利英, 村瀬弘人, 松岡耕二, 袴田高志, 松田裕之

  統計関連学会連合大会講演報告集  2011/09
• ネズミイルカ科の小型鯨類に残留する人為起源および天然起源ハロゲン化フェノール類の蓄積特性  [Not invited]

  落合真理, 野見山桂, 磯部友彦, 磯部友彦, 山田格, 田島木綿子, 松石隆, 天野雅男, 田辺信介

  第20回環境化学討論会要旨集  2011/07  熊本市
• 北海道沿岸のネズミイルカ(Phocoena phocoena)およびイシイルカ(Phocoenoides dalli)における有機ハロゲン化合物汚染の実態と経年変動  [Not invited]

  磯部友彦, 斎藤亜実, 田口美緒子, 北村志乃, 松石隆, 田島木綿子, 山田格, 田辺信介

  第20回環境化学討論会  2011/07  熊本市
• 北日本に分布するネズミイルカ(Phocoena phocoena)の微量元素蓄積特性と経年変動  [Not invited]

  安田悠佑, 平田佐和子, 板井啓明, 磯部友彦, 松石隆, 山田格, 田島木綿子, 高橋真, 田辺信介

  第20回環境化学討論会要旨集  2011/07  熊本市
• 津軽海峡におけるカマイルカの来遊個体数推定  [Not invited]

  松田純佳, 岩原由佳, 小林沙羅, 金子信人, 鈴木励, 松石隆

  日本セトロジー研究  2011/06
• 鯨類の捕食がMSYに与える影響—サンマとスケトウダラを例に—  [Not invited]

  小野雄大, 松石隆

  日本水産学会大会講演要旨集  2011/03
• ズワイガニの資源量直接推定における海域層化方法の改善  [Not invited]

  上田祐司, 松石隆, 木下貴裕

  日本水産学会大会講演要旨集  2011/03
• 資源量調査における特異値について〜日本海ズワイガニを例に〜  [Not invited]

  松石隆, 上田祐司, 木下貴裕

  日本水産学会大会講演要旨集  2011/03
• 同所的に棲むイワナとヤマメの成熟開始サイズ〜釧路川水系10支流間で見られた多様性の謎〜  [Not invited]

  佐橋玄記, 森田健太郎, 松石隆

  日本生態学会大会講演要旨集  2011/03
• ツチクジラ属の遺伝的変異と分子系統  [Not invited]

  北村志乃, 松石隆, 山田格, 石川創, 田辺信介, 中川元, 阿部周一

  平成22年度日本水産学会大会  2010/09  京都市
• ネズミイルカのミトコンドリアDNA系統地理  [Not invited]

  田口美緒子, 阿部周一, 松石隆

  平成22年度日本水産学会大会  2010/09  京都市
• ネズミイルカ科の小型鯨類から検出された有機ハロゲン代謝物の蓄積特性  [Not invited]

  落合真理, 野見山桂, 水川葉月, 江口哲史, 高橋真, 松石隆, 山田格, 田辺信介

  第19回環境化学討論会  2010/06  春日井市
• ネズミイルカ前肢骨格の可動域に関するCT画像解析  [Not invited]

  峯弘, 佐々木基樹, 田口美緒子, 松石隆, 山田一孝, 北村延夫

  第15回野生動物医学会大会  2009/09  富山市
• ネズミイルカ精巣の性ステロイドホルモン合成に関する免疫組織化学的研究  [Not invited]

  石川恭平, 佐々木基樹, 田口美緒子, 松石隆, 坪田敏男, 横山知里, 早川大輔, 北村延夫

  第15回野生動物医学会大会  2009/09  富山市
• 北太平洋と周辺海域におけるネズミイルカの分子系統地理学的解析  [Not invited]

  田口美緒子, 阿部周一, 松石 隆

  平成21年度日本水産学会春季大会(口頭発表)講演要旨集  2009/03  東京
• 経験式にもとづく自然死亡係数の推定  [Not invited]

  松石 隆, 山口宏史

  平成21年度日本水産学会春季大会(口頭発表)講演要旨集  2009/03
• Genetic variation of harbour porpoise in Japanese waters  [Not invited]

  Taguchi M, Abe S, Matsuishi T

  5th World Fisheries Congress  2008/10  Yokohama
• Function of set net fishery for local community sustenance, education and coastal environment monitoring  [Not invited]

  Nomura, Y, Asada, M, Seino, S, Asada, T, Matsuishi, T, Shimizu, S, Sakurai, Y

  5th World Fisheries Congress  2008/10
• Monitoring on sockeye salmon population caught by commercial and sports fishermen in Lake Toya  [Not invited]

  Matsuishi, T, Ueda, H

  5th World Fisheries Congress  2008/10
• Will fishing bans always rehabilitate stocks?  [Not invited]

  Kimoto, A, Matsuishi, T

  5th World Fisheries Congress  2008/10
• 聴覚システムとアフォーダンス  [Not invited]

  伊藤精英, 木村健一, 松石 隆

  第10回日本感性工学会大会要旨集  2008/09
• Mitochondrial DNA variation in Japanese harbour porpoise  [Not invited]

  Taguchi, M, Abe, S, Matsuishi, T

  The 4th PICES Workshop on the Okhotsk Sea and Adjacent Waters  2008/08  網走市
• 2007-2008年に漂着したオオギハクジラ  [Not invited]

  谷田部明子, 松石 隆, 福島広行, 東出幸真, 工藤英美, 和田昭彦, 北村志乃, 山田格

  日本セトロジー研究会第１９回(金沢)大会  2008/06  金沢市
• 2007年度北海道沿岸のストランディングレコード  [Not invited]

  松石隆, 田口美緒子

  日本セトロジー研究会第１９回(金沢)大会発表要旨集  2008/06
• 津軽海峡における鯨類の構成種と地理的・季節的分布について?〜カマイルカの地理的分布と水温の関係〜  [Not invited]

  堀本高矩, 金子拓未, 山口鉄平, 岡崎宏美, 寺岡峻, 東勝輝, 大岡恵里, 北山春菜, 柴龍太郎, 松石 隆

  日本セトロジー研究会第１９回(金沢)大会 要旨集  2008/06
• 2007年度北海道沿岸のストランディングレコード  [Not invited]

  松石隆, 田口美緒子

  日本セトロジー研究会第１９回(金沢)大会 要旨集  2008/06
• 洞爺湖のヒメマス資源変動  [Not invited]

  松石 隆, 上田 宏

  洞爺湖環境フォーラム  2008/06
• 聴覚システムとアフォーダンス  [Not invited]

  伊藤精英, 木村健一, 松石隆

  日本感性工学会大会予稿集(CD−ROM)  2008
• ミトコンドリアDNA解析に基づく日本近海のネズミイルカの遺伝的特徴  [Not invited]

  田口美緒子, 松石隆, 阿部周一

  平成19年度日本水産学会大会秋季大会  2007/09  函館市
• 北海道における鯨類の座礁・漂着・混獲  [Not invited]

  松石隆, 田口美緒子, 石川創

  平成19年度日本水産学会大会秋季大会  2007/09  函館市
• 北海道における鯨類の座礁・漂着・混獲  [Not invited]

  松石 隆, 田口美緒子, 石川 創

  平成19年度日本水産学会秋季大会 大会要旨集  2007/09
• 禁漁すると本当に資源量は回復するのか〜水産資源管理における通説の検討〜  [Not invited]

  木元 愛, 松石 隆

  平成19年度日本水産学会秋季大会 大会要旨集  2007/09
• 禁漁すると本当に資源量は回復するのか〜水産資源管理における通説の検討〜  [Not invited]

  木元愛, 松石隆

  日本水産学会大会講演要旨集  2007/09
• 雌雄で成長差のある魚類に対する資源解析と評価—ソウハチ北海道北部系群—  [Not invited]

  板谷和彦, 山口宏史, 山口浩志, 松石隆

  日本水産学会大会講演要旨集  2007/09
• 漂着・混獲個体を用いた日本近海におけるネズミイルカの遺伝解析  [Not invited]

  田口美緒子, 阿部周一, 松石 隆

  2007年度日本哺乳類学会  2007/09  厚木市
• Current Fish Stock Management Procedure of Walleye Pollock in Japan  [Not invited]

  Matsuishi,T

  The Second Taiwan-Japan Seminar on Development and Management of Fisheries  2007/07
• 沿岸資源管理と漁村の振興  [Not invited]

  松石 隆

  平成18年度全国資源管理推進会議 発表要旨集  2006/11
• A simulation method for predicting future population dynamics with uncertainty  [Not invited]

  Kimoto, A, Matsuishi, T

  The thirteenth biennial conference of the International institute of fisheries economics and trade  2006/07
• 漁獲量・魚体サイズによる価格変動を考慮した資源診断法  [Not invited]

  松石 隆, 原田弥永子, 山崎拓也

  平成１８年度日本水産学会大会講演要旨集  2006/04
• 資源管理効果検討のための再生産関係モデルの比較  [Not invited]

  木元 愛, 毛利隆志, 松石 隆

  平成１８年度日本水産学会大会講演要旨集  2006/04
• Trophic modelling of Kawahara-oike, a small lake in western Japan by using Ecopath with Ecosim  [Not invited]

  Hossain,M.M, Matsuishi,T, Goto,A, Azuma,M

  平成１８年度日本水産学会大会講演要旨集  2006/04
• 漁獲量・魚体サイズによる価格変動を考慮した資源診断法  [Not invited]

  松石隆, 原田弥永子, 山崎拓也

  日本水産学会大会講演要旨集  2006/03
• 資源管理効果検討のための再生産関係モデルの比較  [Not invited]

  木元愛, 毛利隆志, 松石隆

  日本水産学会大会講演要旨集  2006/03
• 津軽海峡における鯨類の種構成と地理的・季節的分布について III  [Not invited]

  柴田泰宙, 片平浩孝, 篠原沙和子, 鈴木初美, 上田茉利, 鵜山貴史, 松石 隆

  日本海セトロジー研究会第17回大会講演要旨集  2006
• 津軽海峡における鯨類の種構成と地理的・季節的分布についてII  [Not invited]

  長尾優輝, 須藤竜介, 浦西茉耶, 川南拓丸, 井原美香, 飯塚慧, 上田茉莉, 松石隆

  日本海セトロジー研究会第16回大会発表要旨集  2005/06
• 噴火湾の定置網に混獲されるネズミイルカについてII  [Not invited]

  松石隆, 石上朋子, 坂本渚

  日本海セトロジー研究会第16回大会発表要旨集  2005/06
• 北海道大学水産資料館の「ニタリクジラ」骨格標本（77N62）について  [Not invited]

  浦西茉耶, 飯塚慧, 川南拓丸, 狩谷智子, 松石隆, 和田志郎, 大石雅之

  日本海セトロジー研究会第16回大会発表要旨集  2005/06
• 生態心理学的アプローチによるネズミイルカの間隙通過判断に関する研究.  [Not invited]

  伊藤精英, 松石 隆, 西脇茂利, 佐々木正人, 青山守

  日本海セトロジー研究会第16回大会発表要旨集  2005/06
• 北海道南部噴火湾沖の定置網に混獲された幼ネズミイルカの卵巣組織  [Not invited]

  本間義治, 牛木辰男, 武田政衛, 松石隆

  日本海セトロジー研究会第16回大会発表要旨集  2005/06
• Ecosystem of a Small Lake (Kawahara-oike, Japan) Invaded by Bluegill Lepomis macrochirus and Largemouth Bass Micropterus salmoides  [Not invited]

  Matsuishi, T, Hossain, M.M, Goto, A, Azuma, M

  2005 FORUM of the North American Association of Fisheries Economists  2005
• イルカはなぜ超音波を発するのか  [Not invited]

  松石隆

  （社）計測自動制御学会システムインテグレーション部門講演会概要集  2004/12
• 資源管理効果検討のための再生関係モデルの比較  [Not invited]

  木元愛, 毛利隆志, 山口宏史, 松石隆, 本田聡, 八吹圭三, 志田修, 石田良太郎, 本間隆之, 武藤卓志, 和田昭彦, 下田和孝

  平成16年度日本水産学会北海道支部大会講演要旨集  2004/11
• 資源管理効果検討のための再生産関係モデル  [Not invited]

  木元愛, 毛利隆志, 松石 隆

  平成16年度日本水産学会大会要旨集  2004/04
• ネズミイルカの環境認知について  [Not invited]

  松石 隆, 本野吉子, 三浦健治, 常田悠, 伊藤精英

  平成16年度日本水産学会大会要旨集  2004/04
• クロミンククジラの発見距離に影響を与える要因  [Not invited]

  齊藤朋子, 池田尚聡, 松石 隆, 西脇茂利

  平成16年度日本水産学会大会要旨集  2004/04
• 鯨類目視観測データを用いた正面発見確率g(0)の推定  [Not invited]

  池田尚聡, 齊藤朋子, 松石 隆, 西脇茂利

  平成16年度日本水産学会大会要旨集  2004/04
• ABCルールにもとづくスケトウダラ太平洋系群の資源管理  [Not invited]

  毛利隆志, 木元愛, 松石 隆, 八吹圭三

  平成16年度日本水産学会大会要旨集  2004/04
• 噴火湾の定置網に混獲されるネズミイルカについて?  [Not invited]

  宮下篤子, 伊藤精英, 大谷誠司, 西脇茂利, 本間義治, 松石 隆

  日本海セトロジー研究会第15回大会講演要旨集  2004
• 津軽海峡における鯨類の種構成と地理的・季節的分布について  [Not invited]

  須藤竜介, 飯塚慧, 内宮万里央, 浦西茉耶, 川南拓丸, 楠目祐子, 松石 隆

  日本海セトロジー研究会第15回大会講演要旨集  2004
• Community based fisheries management (CBFM) as the future fisheries management option for small-scale fisheries of Bangladesh  [Not invited]

  Monir, H. M, Islam, M. A, Ridgway, S, Matsuishi, T

  Proceedings of the twelfth Biennial Conference of the International Institute of Fisheries economics and Trade  2004
• Conflicts between recreational and commercial fishing in Lake Toya, Hokkaido, Japan  [Not invited]

  Matsuishi, T, Ueda, H

  Proceedings of the Twelfth Biennial Conference of the International Institute of Fisheries Economics and Trade  2004
• 鯨類目視調査の発見距離角度分布に与える群頭数の影響  [Not invited]

  池田尚聡, 斉藤朋子, 松石 隆, 西脇茂利

  平成15年度日本水産学会春季大会要旨集  2003/04
• 水槽内におけるネズミイルカの行動の変化  [Not invited]

  本野吉子, 堀井直人, 松石 隆, 伊藤精英

  平成15年度日本水産学会春季大会要旨集  2003/04
• マダラ襟裳西系群の資源評価V 〜体重にもとづくコホート解析法の妥当性の検討〜  [Not invited]

  上田 祐司, 松石 隆, 菅野 泰次

  平成15年度日本水産学会春季大会要旨集  2003/04
• マダラ襟裳西系群の資源評価VI 〜最近の資源動向〜  [Not invited]

  上田 祐司, 松石 隆, 菅野 泰次

  平成15年度日本水産学会春季大会要旨集  2003/04
• ECOPATHモデルによるビクトリア湖の生態系解析〜外来魚導入の顛末〜  [Not invited]

  松石 隆

  平成15年度日本水産学会春季大会要旨集  2003/04
• 噴火湾産エゾボラモドキの資源管理について  [Not invited]

  早狩千秋, 松石 隆

  平成15年度日本水産学会春季大会要旨集  2003/04
• 定置網に混獲されるネズミイルカについて  [Not invited]

  松石 隆, 本野吉子, 堀井直人, 宮田愛, 竹上健太郎, 常田悠, 末廣 富士代

  平成15年度日本水産学会春季大会要旨集  2003/04
• 北海道南部臼尻沖の定置網に混獲されたネズミイルカの生殖腺組織像  [Not invited]

  本間義治, 牛木辰男, 橋都浩哉, 武田政衛, 松石 隆, 本野吉子

  平成15年度日本水産学会春季大会要旨集  2003/04
• 洞爺湖遊魚釣獲量調査に基づくヒメマスの資源量動態  [Not invited]

  田中玲良, 松石 隆, 上田宏

  日本水産学会北海道支部例会要旨集  2003
• ネズミイルカ鳴音の多様性  [Not invited]

  三浦健治, 本野吉子, 常田悠, 松石 隆, 澤村雅美, 伊藤精英, 鈴木健太郎, 籠島健二

  日本水産学会北海道支部例会要旨集  2003
• 2002年度洞爺湖遊漁釣獲量調査報告書  [Not invited]

  松石 隆, 田中 玲良, 上田 宏

  北海道大学大学院水産科学研究科  2003
• 噴火湾の定置網に混獲されるネズミイルカについて  [Not invited]

  松石 隆, 本野吉子, 常田悠, 三浦健治, 本間義治, 牛木辰男

  日本海セトロジー研究会第14回大会発表要旨集  2003
• ECOPATHモデルと適用例  [Not invited]

  松石 隆

  東京大学海洋研究所共同利用研究集会要旨集  2003
• 漂着または混獲されたネズミイルカの器官組織像  [Not invited]

  本間義治, 牛木辰男, 橋都浩哉, 武田政衛, 松石 隆, 本野吉子

  日本水産学会中部支部大会講演要旨集  2003
• 国の定めた「漁獲制御ルール」に基づく資源管理効果の検討〜スケトウダラ太平洋系群を例に〜  [Not invited]

  木元愛, 松石 隆, 八吹圭三

  平成15年度日本水産学会春季大会要旨集  2003
• 過去10年の洞爺湖における生態学的変化  [Not invited]

  菜畑優樹, 工藤 勲, 松石 隆, 春名寛幸, 上田 宏

  平成15年度日本水産学会春季大会要旨集  2003
• Behavior of a harbor porpoise in an unfamiliar environment  [Not invited]

  Honno, Y, Ito, K, Matsuishi, T. Okura, M, Sasaki, M

  Second International Symposium on Fisheries Sciences and Technology for Academic Exchange between Hokkaido University and Pukyong National University, Korea  2003
• Behavior of a harbor porpoise in an unfamiliar environment  [Not invited]

  Honno, Y, Ito, K, Matsuishi, T, Okura, M, Sasaki, M

  Studies in perception and action VII Proceedings of 12th International conference on perception and action  2003
• Genetic impact assessment of stocking on native populations  [Not invited]

  Oota, T, Matsuishi, T

  Second international symposium on stock enhancement and sea ranching  2002
• 噴火湾におけるエゾボラモドキの蓋輪紋による年齢査定の妥当性  [Not invited]

  早狩千秋, 松石 隆

  平成14年度日本水産学会春季大会要旨集  2002
• ABC算定方法に基づく管理効果の検討〜スケトウダラ太平洋系群を例に〜  [Not invited]

  木元 愛, 八吹 圭三, 松石 隆

  平成14年度日本水産学会北海道支部・東北支部合同支部大会講演要旨集  2002
• 2次元空間シミュレーターの構築とライントランセクト法の妥当性の検討  [Not invited]

  池田尚聡, 松石 隆, 西脇茂利

  平成14年度日本水産学会春季大会要旨集  2002
• イワナの釣獲経験回数と釣られやすさの関係  [Not invited]

  坪井潤一, 森田健太郎, 松石 隆

  平成14年度日本水産学会春季大会要旨集  2002
• 洞爺湖における遊漁釣獲量調査?-2001年までの結果と有珠山噴火の影響-  [Not invited]

  松石 隆, 成田厚博, 上田宏

  平成14年度日本水産学会春季大会要旨集  2002
• 2001年度洞爺湖遊漁釣獲量調査報告書  [Not invited]

  松石 隆, 成田 厚博, 上田 宏

  北海道大学大学院水産科学研究科  2002
• 体サイズ情報にもとづく資源診断法  [Not invited]

  上田 祐司, 松石 隆

  平成13年度日本水産学会春季大会要旨集  2001/04
• 2000年有珠山噴火による洞爺湖生態系への影響  [Not invited]

  菜畑優樹, 太田晃史, 帰山雅秀, 福山龍次, 齊藤修, 今田和史, 安富亮平, 知北和久, 工藤勲, 伴修平, 松石 隆, 春名寛幸, 上田宏

  平成13年度日本水産学会春季大会講演要旨集  2001
• キャッチ＆リリースされたイワナの成長・生残・釣られやすさ  [Not invited]

  坪井潤一, 森田健太郎, 松石 隆

  平成13年度日本水産学会春季大会要旨集  2001
• 成長の雌雄差を考慮した資源評価法  [Not invited]

  中村真歩, 松石 隆

  平成13年度日本水産学会春季大会要旨集  2001
• 平成12年度洞爺湖ヒメマス資源量等調査報告書  [Not invited]

  成田厚博, 松石 隆, 上田宏

  北海道大学大学院水産科学研究科  2001
• 若齢魚の漁獲が資源に与える影響─年齢構成モデルによる検討─  [Not invited]

  横田聡, 松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000/09
• マダラ陸奥湾道南系群の資源評価IV─資源変動の要因─  [Not invited]

  上田祐司, 菅野泰次, 松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000/09
• 体サイズに基づく漁業資源管理  [Not invited]

  松石 隆

  東京大学海洋研究所共同利用シンポジウム「漁業管理、野生生物管理、害虫防御、疫学における個体群管理の最前線」講演要旨集  2000
• 洞爺湖における遊漁釣獲量調査II─1998年と1999年の比較─  [Not invited]

  成田厚博, 上田宏, 松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000
• マスタークロノロジー法によるスケトウダラの年齢査定  [Not invited]

  高島義信, 片倉靖次, 三原行雄, 松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000
• 個体ベースモデルにもとづく種苗放流方策の検討II─種苗放流が生態系に与える遺伝的影響と資源管理─  [Not invited]

  太田武行, 松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000
• 漁獲選択性による成長曲線の偏り  [Not invited]

  松石 隆

  平成12年度日本水産学会秋季大会要旨集  2000
• バックカリキュレーション法の問題点  [Not invited]

  松石 隆, 森田健太郎

  平成12年度日本水産学会秋季大会要旨集  2000
• 年齢査定者の能力を推定するモデルの評価? シミュレーションによる検証  [Not invited]

  高島義信, 松石 隆, 菅野泰次

  平成12年度日本水産学会春季大会講演要旨集  2000
• マダラ陸奥湾道南系群の資源評価?資源量推定と資源診断  [Not invited]

  上田祐司, 松石 隆, 菅野泰次

  平成11年度日本水産学会春季大会講演要旨集  1999
• シミュレーションによるコホート解析の推定精度の比較  [Not invited]

  立川 大地, 松石 隆

  平成11年度日本水産学会秋季大会講演要旨集  1999
• 個体ベースモデルにもとづく種苗放流方策の検討  [Not invited]

  太田 武行, 松石 隆

  平成11年度日本水産学会秋季大会講演要旨集  1999
• 年齢査定者の能力を推定するモデルの評価  [Not invited]

  高島義信, 高田壮則, 松石 隆, 菅野泰次

  平成10年度日本水産学会秋季大会講演要旨集  1998
• イワナの生活史を変えた砂防ダム  [Not invited]

  森田健太郎, 山本祥一郎, 星野昇, 松石 隆, 西村欣也, 菅野泰次

  道立孵化場と北大水産学部の合同セミナー要旨集  1998
• 年齢構成モデルによる宮古湾産ヒラメ放流方策の検討  [Not invited]

  岩田和之, 松石 隆, 菅野泰次, 山下洋, 服部圭太

  平成10年度日本水産学会春季大会講演要旨集  1998
• 耳石を用いた画像解析による年齢査定法の評価  [Not invited]

  高島義信, 高田壮則, 松石 隆, 菅野泰次

  平成10年度日本水産学会春季大会講演要旨集  1998
• イワナの生活史を変えた砂防ダム  [Not invited]

  森田健太郎, 山本祥一郎, 星野昇, 松石 隆, 西村欣也, 菅野泰次

  平成10年度日本水産学会春季大会講演要旨集  1998
• 洞爺湖における遊漁釣獲量調査  [Not invited]

  松石 隆, 坂野博之, 上田 宏

  平成10年度日本水産学会秋季大会講演要旨集  1998
• 北海道南部の原木川と亀川におけるイワナ(Salvelinus leucomaenis)の卵サイズ・孕卵数変異  [Not invited]

  森田健太郎, 山本祥一郎, 高島義信, 松石 隆, 菅野泰次, 西村欣也

  平成10年度日本水産学会秋季大会講演要旨集  1998
• マダラ陸奥湾道南系群の資源評価  [Not invited]

  上田祐司, 松石 隆, 菅野泰次

  平成10年度日本水産学会秋季大会講演要旨集  1998
• 種苗放流と生態系管理  [Not invited]

  松石 隆

  共同利用シンポジウム 新海洋秩序時代における水産資源の保全と管理-海域環境保全と水産資源管理の接点を探る-要旨集  1998
• 常呂海域ほたてがい漁業終漁予想  [Not invited]

  松石 隆, 藤原 博

  平成9年度日本水産学会春季大会講演要旨集  1997/04
• 北海道・サハリン周辺海域スケトウダラのmtDNA制限酵素断片長解析  [Not invited]

  水野政巳, 小林敬典, 松石 隆, 前田圭司, L.M.ズベリコーワ

  平成9年度日本水産学会春季大会講演要旨集  1997
• 年齢構成モデルに基づく最適種苗放流方策の検討  [Not invited]

  岩田和之, 松石 隆, 西村欣也, 菅野泰次

  平成9年度日本水産学会春季大会講演要旨集  1997
• 道南海域におけるヒラメの移動について  [Not invited]

  松石 隆, 倉地宏樹, 石野健吾, 菅野泰次

  平成9年度日本水産学会秋季大会講演要旨集  1997
• 性比を考慮した年令構成モデルに基づく最適種苗放流方策の検討  [Not invited]

  岩田和之, 松石 隆, 菅野泰次

  平成9年度日本水産学会秋季大会講演要旨集  1997
• 漁獲物の体重組成にもとづくコホート解析  [Not invited]

  上田祐司, 松石 隆, 菅野泰次

  平成9年度日本水産学会秋季大会講演要旨集  1997
• LPA; An estimation method of fish population size based on catch at length data  [Not invited]

  Matsuishi, T

  15th Lowell Wakefield Symposium Abstracts  1997
• 耳石を用いた画像解析による年齢査定法の評価  [Not invited]

  高島義信, 高田壮則, 松石 隆, 菅野泰次

  魚の研究-道立孵化場と北大水産学部の合同セミナー要旨集  1997
• 漁獲物の体長組成にもとづく秋田県南部地区のアワビ資源量推定  [Not invited]

  松石 隆, 齋藤和敬, 菅野泰次

  平成8年度日本水産学会春季大会講演要旨集  1996/04
• 漁獲物の体長組成にもとづく噴火湾のスケトウダラ資源量推定  [Not invited]

  松石 隆, 三原行雄, 菅野泰次

  平成8年度日本水産学会春季大会.講演要旨集  1996/04
• 北海道噴火湾沖に産卵するスケトウダラ個体群の年令と成長について  [Not invited]

  平山和幸, 松石 隆, 西村欣也, 菅野泰次

  平成8年度日本水産学会春季大会講演要旨集  1996/04
• RAPD-PCR分析によるマハゼ個体群間の遺伝的特性  [Not invited]

  星野昇, 小林敬典, 松石 隆

  平成8年度日本水産学会春季大会講演要旨集  1996/04
• スケトウダラの資源管理に関する研究  [Not invited]

  松石 隆, 平山 和幸, 菅野 泰次

  水産学術研究・改良補助事業報告(平成７年分)  1996
• 道南太平洋における一時来遊種を含む魚類の漁獲量と海況の関係  [Not invited]

  松石 隆, 磯田 豊

  第27回北洋シンポジウム 北海道・東北の水産資源の長期変動と海洋環境のレジームシフト〜 講演要旨集  1996
• 体長組成によるマルチコホート解析  [Not invited]

  松石 隆, 菅野泰次

  平成7年度日本水産学会春季大会講演要旨集  1995/04
• 北海道東部沿岸域に産卵するニシンの個体群構造  [Not invited]

  堀田卓朗, 坂野博之, 今田昌光, 山本和久, 松石 隆, 菅野泰次

  平成7年度日本水産学会春季大会講演要旨集  1995/04
• コード法による閾値形質の遺伝率推定とその推定精度の評価  [Not invited]

  菅野泰次, 松石 隆

  成7年度日本水産学会春季大会講演要旨集  1995/04
• 体長組成によるコホート解析の新しい方法  [Not invited]

  松石 隆

  平成6年度日本水産学会春季大会講演要旨集  1994/04
• ブートストラップ法によるDeLury法の精度評価  [Not invited]

  松石 隆, 岩田雅弘, 菅野泰次, 齋藤和敬

  平成6年度日本水産学会春季大会講演要旨集  1994/04
• アワビの年令-殻長データの解析  [Not invited]

  松石 隆, 齋藤和敬, 岸野洋久

  平成5年度日本水産学会春季大会講演要旨集  1993/04
• 放流事業による遺伝子のおきかわり  [Not invited]

  松石 隆, 岸野洋久, 沼知健一

  平成4年度日本水産学会春季大会講演要旨集  1992/04
• まき網漁業におけるCPUE;魚群重量と魚群数〜道東のまき網漁業を例として〜  [Not invited]

  松石 隆, 岸野洋久, 松宮義晴, 和田時夫

  平成3年度日本水産学会春季大会講演要旨集  1991/04
• 魚群選択と操業時間〜まき網漁業における最適漁獲方式〜  [Not invited]

  松石 隆, 岸野洋久, 松宮義晴

  平成3年度日本水産学会春季大会講演要旨集  1991/04
• 混合した魚種項目を単独魚種項目に分配する方法  [Not invited]

  松石 隆, 松宮義晴

  平成2年度日本水産学会秋季大会講演要旨集  1990/11
• まき網漁業におけるCPUEと資源量の関係  [Not invited]

  松石 隆, 松宮義晴

  平成2年度日本水産学会秋季大会 講演要旨集  1990/11
• 漁船の魚群探索時間に基づく浮魚類の絶対資源量推定  [Not invited]

  松石 隆, 松宮義晴, 和田時夫

  平成2年度日本水産学会春季大会講演要旨集  1990/04
• 漁船の魚群探索時間に基づく浮魚類の絶対資源量推定  [Not invited]

  松石 隆, 松宮義晴, 和田時夫

  平成元年第39回サンマ研究検討会講演要旨集  1990
• 最適探索戦略による浮魚類の資源量推定への予察  [Not invited]

  松石 隆, 松宮義晴

  日本生態学会第36回大会(ポスター発表) 講演要旨集  1990
• 2魚種への努力量配分の最適化による資源特性値の推定  [Not invited]

  松宮義晴, 松石 隆

  日本計量生物学会(Bulletin of The Biometric Society of Japan)講演要旨集  1989/04
• 漁獲魚種選択の最適化による資源特性値の推定  [Not invited]

  松宮義晴, 松石 隆

  平成元年度日本水産学会春季大会講演要旨集  1989/04
• 漁船の魚群探索モデルからの資源量推定への予察  [Not invited]

  松石 隆

  研究集会「ゲーム理論による水産資源解析と管理」講演要旨集  1989
• 最適探索戦略による浮魚類の資源量推定への予察  [Not invited]

  松石 隆, 松宮義晴

  水産海洋学会研究発表大会講演要旨集  1989
• 漁船の魚群探索モデル  [Not invited]

  松石 隆

  研究集会「浮魚類の資源変動と管理」講演要旨集  1989
• 浮魚漁業の共同探索へのゲーム理論的アプローチ  [Not invited]

  松石 隆, 松宮義晴, 松田裕之

  水産海洋学会研究発表大会講演要旨集  1989

Works

• Cetacean Stranding and Bycatch in Hokkaido, Japan

  Matsuishi Takashi Fritz Balanced Ocean, Hokkaido University, Youtube 2022/04
• Small-scale Artisanal Fisheries and Their Management

  Matsuishi Takashi Fritz Balanced Ocean, Hokkaido University, Youtube 2022/04
• New species Sato's beaked whale

  MATSUISHI Takashi Fritz LASBOS Moodle 2020/11

MISC

• Exploring the Possibility of a “Copepod Fishery” targeting on the Marine Lower Trophic Organisms

  山口篤, 松石隆, 向井徹, 藤森康澄, 別府史章, 細川雅史  日本ベントス学会・日本プランクトン学会合同大会講演要旨集  2021-  2021
• 低次栄養段階生物を対象とした「かいあし漁業」の可能性を探る

  山口篤, 松石隆, 向井徹, 藤森康澄, 別府史章, 細川雅史  日仏海洋学会学術研究発表会講演要旨集  2021 (CD-ROM)-  2021
• 低次栄養段階生物を対象とした「かいあし漁業」の可能性を探る

  山口篤, 松石隆, 向井徹, 藤森康澄, 別府史章, 細川雅史  日本水産学会北海道支部大会講演要旨集  2020 (CD-ROM)-  2020
• New Species KUROTSUCHI KUJIRA

  MATSUISHI Takashi Fritz  Megaptera  82-  5  -6  2019/11  [Not refereed][Invited]
  
• ハッブスオウギハクジラ(Mesoplodon carlhubbsi)メロンの形態学的解析

  宮崎彩乃, 佐々木基樹, 黒田実加, 松石隆, 田島木綿子, 山田格, 中郡翔太郎, 鈴木千尋, 都築直, 北村延夫  日本哺乳類学会大会プログラム・講演要旨集  2019-  168  2019/09/15  [Not refereed][Not invited]
  
• ハッブスオウギハクジラ(Mesoplodon carlhubbsi)頭部のCT画像および肉眼解剖学的解析

  宮崎彩乃, 佐々木基樹, 黒田実加, 松石隆, 田島木綿子, 山田格, 中郡翔太郎, 鈴木千尋, 都築直, 北村延夫  日本獣医学会学術集会講演要旨集  162nd-  331  2019/08/20  [Not refereed][Not invited]
  
• ハッブスオウギハクジラ(Mesoplodon carlhubbsi)頭部の形態学的解析

  宮崎彩乃, 佐々木基樹, 黒田実加, 松石隆, 田島木綿子, 山田格, 中郡翔太郎, 鈴木千尋, 都築直, 北村延夫  日本哺乳類学会大会プログラム・講演要旨集  2018-  155  2018/09/08  [Not refereed][Not invited]
  
• 炭素14によるザトウクジラMegaptera novaeangliae及びミンククジラBalaenoptera acutorostrataの回遊経路推定

  松田純佳, 松石隆, 永田俊, 宮入陽介, 横山祐典  日本哺乳類学会大会プログラム・講演要旨集  2018-  149  2018/09/08  [Not refereed][Not invited]
  
• 北海道沿岸のネズミイルカの成長・成熟

  松井菜月, 佐々木基樹, 進藤順治, 小林万里, 松石隆  日本哺乳類学会大会プログラム・講演要旨集  2018-  2018
• 炭素14を用いたクジラ等海棲哺乳類の回遊履歴および生態情報の復元

  横山祐典, 横山祐典, 横山祐典, 宮入陽介, 松田純佳, 松石隆, 永田俊  日本地球惑星科学連合大会予稿集(Web)  2017-  ROMBUNNO.AOS26‐P04 (WEB ONLY)  2017  [Not refereed][Not invited]
  
• Tissue physical property in the head of small toothed whales: Effect on the clicks propagation and directivity

  Mika Kuroda, Motoki Sasaki, Kazutaka Yamada, Nobuhiro Miki, Masao Amano, Tadasu K. Yamada, Takashi Matsuishi  The Journal of the Acoustical Society of America  140-  (4)  3302  -3302  2016/10  [Not refereed][Not invited]
  
• 北海道沿岸にストランディングした鯨類の臓器における金属濃度の測定とその比較検討

  川田大紀, 松田純佳, 松石隆, 中山翔太, 石塚真由美, 浅川満彦, 能田淳  日本野生動物医学会大会・講演要旨集  21st-  76  2015/07/01  [Not refereed][Not invited]
  
• 平成25 年度日本水産学会論文賞受賞-Effects of stratiffication and misspeciffication of covariates on species distribution models for abundance estimation from virtual line transect survey data

  柴田泰宙, 松石隆, 村瀬弘人, 松岡耕二, 袴田高志, 北門利英, 松田裕之  日本水産学会誌  (80)  533  2014/08  [Not refereed][Not invited]
  
• An ectoparasite and epizoite from a western gray whale (Eschrichtius robustus) stranded on Tomakomai, Hokkaido, Japan

  MURASE Mayumi, TAJIMA Yuko, OKAMOTO Minoru, MATSUISHI Takashi, YAMADA Tadasu K., ASAKAWA Mitsuhiko  Journal of the College of Dairying. Natural science  38-  (2)  149  -152  2014/04/20
• タイヘイヨウアカボウモドキの舌形態

  進藤順治, 岡田あゆみ, 三村春奈, 松田純佳, 松石隆  日本野生動物医学会大会・講演要旨集  19th-  2013
• ネズミイルカ科の小型鯨類から検出された有機ハロゲン代謝物の蓄積特性

  落合真理, 野見山桂, 水川葉月, 江口哲史, 高橋真, 松石隆, 山田格, 田辺信介  環境化学討論会講演要旨集  19th-  244  -245  2010/06/20  [Not refereed][Not invited]
  
• 北海道大学大学院・水産科学研究院 松石研究室 北海道大学鯨類研究会 (特集 海棲哺乳類について学べる! 国内大学の研究室紹介2010)

  松石 隆  勇魚  (52)  17  -19  2010/06
• キャッチ & リリースされたイワナの成長・生残・釣られやすさ

  坪井 潤一, 森田 健太郎, 松石 隆  日本水産学会誌 = Bulletin of the Japanese Society of Scientific Fisheries  67-  (6)  1153  -1153  2001/11/15
• 魚類の放流と生態系への影響 (総特集 水産資源の管理と保全) -- (4章 水産資源の保全への新展開)

  松石 隆  号外海洋  (17)  154  -159  1999/05
• Relationship between SST and catch rates of migrant and stagnant species in the southern North Pacific off Hokkaido

  MATSUISHI Takashi, ISODA Yutaka  Bulletin of the Japanese Society of Fisheries Oceanography  61-  (1)  71  -75  1997/02/28
• Analysis of MtDNA restriction enzyme fragment length polymorphism of Alaska pollack in the sea area around Hokkaido and Sakhalin.

  水野政巳, 小林敬典, 松石隆, 前田圭司, ズベリコーワ L M  日本水産学会大会講演要旨集  1997-  1997
• Difference in genetic characters between yellowfin goby populations by RAPD - PCR method.

  星野昇, 小林敬典, 松石隆  日本水産学会大会講演要旨集  1996-  1996

Research Grants & Projects

• Exploring the Possibility of a "Copepod Fishery" targeting on the Marine Lower Trophic Organisms

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Challenging Research (Pioneering)

  Date (from‐to) : 2020/07 -2026/03 

  Author : 山口 篤, 松石 隆, 向井 徹, 藤森 康澄, 別府 史章

   

  今年度はかいあし漁業の内容を広く一般に普及させるための情報発信を主に行った。国内学会の発表２件に加え、Fish of the Month (FoM) という、北海道大学水産学部の研究成果を紹介するHPにおいて、本科研費の研究分担者を主とする５名による、かいあし漁業に関する内容を紹介した。紹介内容と紹介者は以下の通りである：「海洋生態系におけるカイアシ類の重要性とかいあし漁業への夢（山口 篤）」、「カイアシ類の音響探知（向井 徹）」、「カイアシ類の音響散乱特性（福田美亮）」、「カイアシ類を対象とした商業漁業（藤森康澄）」、「カイアシ類-新たな水産脂質供給源として（別府史章）」。 カイアシ類を対象とした研究論文として、北太平洋亜寒帯域に優占する日周鉛直移動を行うカイアシ類Metridia pacificaの一次生産への摂餌インパクトを推定し、呼吸量による輸送量の推定を行った。これは、表層（0-50 m）と深海（50-200 m）の水温条件下において、同種の雌成体を飼育し、呼吸による酸素消費量を測定し、現場の表層における摂餌量の推定と、深海における呼吸による炭素輸送量を推定したものである。夜間の表層における個体数は１平方メートルあたり27～5422個体の間にあり、昼間の表層には本種は出現せず、これは日周鉛直移動の反映と考えられた。日周鉛直移動バイオマスは、１平方メートルあたり1-309 mg Cであった。1日の夜間表層と昼間深海での滞留時間を考慮すると、1日あたり１平方メートルあたりの摂餌量は0.04-11.04 mg Cと推定され、これは現場一次生産量の0-2.4％を占めていた。一方、昼間深海での1日あたり１平方メートルあたりの呼吸量は0.02-9.39 mg Cと計算された。これは有光層からの沈降粒子輸送量の0-10％に相当しており、物質循環における重要性が示された。
• Research on the conflict between Harbour Porpoise and Fisheries

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)

  Date (from‐to) : 2014/04 -2017/03 

  Author : MATSUISHI Takashi, MATSUDA Ayaka, KURODA Mika, MATSUI Natsuki, MAEDA Saki, SAKURAI Kenji

   

  Harbour porpoise is strongly affected by human activities because its habitats is near shore. Wide range of researches are conducted in Europe and North America but little in Japan. Recently, stranding network and acoustic observation devices has developed in Japan, which enable to conduct new approach to the research of harbour porpoise. In the current study, specimens are collected from stranded and by caught harbour porpoise to analyse the diet and the conflict between fisheries. Also by using acoustic devices, observations are conducted around fishing gears to clarify the behaviour around the gears. From these result, conflicts between harbour porpoise and fisheries are described which will help to find a sound coexistence between cetacean and human.
• Levels and temporal trends of brominated flame retardants and organochlorine POPs

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 2013/04 -2016/03 

  Author : Isobe Tomohiko, TAJIMA YUKO, YAMADA TADASU, MATSUISHI TAKASHI, AMANO MASAO, KUNISUE TATSUYA

   

  We investigated organohalogen contaminants in blubber of cetaceans stranded at the Japanese coast to elucidate the contamination status and to estimate the toxicological risk of those contaminants. Concentrations of PCBs, DDTs, HCHs and HCB in adult male blubber showed significant decreasing trends during the research period (p < 0.05). Because the use of POPs was restricted worldwide, these chemicals showed decreasing trends. On the other hand, substantial increase of PBDEs and HBCDs were observed, suggesting growing consumption in Japan and other Asian countries during the study period. Since the contaminant levels exceeded the reference dose of some toxicological effects, adverse effects on cetaceans’ health were concerned.
• Estimate of biological productivity of estuarine and coastal areas as nursery grounds for commercially important fish juveniles

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 2009 -2012 

  Author : YAMASHITA Yoh, KASAI Akihide, TOMINAGA Osamu, MATSUISHI Takashi, SHOJI Jun

   

  In order to develop methods to estimate the carrying capacity of commercially important coastal fish nursery grounds, we built two models based on field data important to the production of temperate sea bass and Japanese flounder juveniles. We examined the ecosystem for hydrodynamics, nutrients, primary and secondary production in the Yura River Estuary and Tango Sound and built a hydrodynamics-primary production model (Delft3D) and an ecosystem model (Ecopath)
• 鯨類におけるウイルス検出と免疫遺伝子との相互関係

  日本学術振興会：科学研究費助成事業 挑戦的萌芽研究

  Date (from‐to) : 2008 -2009 

  Author : 小池 裕子, 松石 隆, 西田 伸

   

  本研究では、鯨類の特に座礁集団および個体に着目し、座礁の原因究明の一つの手段として、ウィルス感染の有無とその動向のモニタリング、および検出されたウィルスの系統解析をおこない、宿主-ウィルスの共進化関係の有無と、免疫遺伝子MHCとの相互関係について探ることを目的としてきた。本年度も引き続き日本各地において座礁・混獲された鯨類より試料の収集をおこない、10鯨種・47個体の試料を得た。これは北海道ストランディングネットワーク・北海道大学・国立科学博物館・大村湾スナメリネットワーク(仮称)・宮崎くじら研究会との連携によるものであり、本プロジェクトもこれらネットワークの構築・運営の一部に携わっている。これまでに蓄積された試料について、DNA診断によるウィルス検出をおこなったところ、4鯨種・4個体よりヘルペスウィルスが検出された。本年度は特にこれらの系統解析と病理学的所見との関連性について解析を進めた。系統解析の結果、カズハゴンドウの鼻腔粘膜およびオキゴンドウの肺より検出されたウィルスは、それぞれ新たな系統のアルファヘルペスで、オウギハクジラおよびマッコウクジラのリンパ節からのものは、同じく新たな系統のガンマヘルペスと同定された。鯨類から検出されたアルファヘルペスウィルスは単一のクレードを形成し、種1分類群特異的な進化が示唆された。一方で、ガンマヘルペスウイルスの鯨類クレードは大きく2つに分かれており、これらウィルスの起源が複数あることを示した。またアルファヘルペスウィルスは主に呼吸器系統から、先行研究におけるガンマヘルペスウイルスは主に生殖器から、そして本研究によるガンマヘルペスウィルスはリンパ節から検出され、これらの系統のウィルスがそれぞれ異なる組織をターゲットとし、潜伏感染をおこなっていることが示唆された.なおこれらの結果は学術誌に投稿中である。
• ネズミイルカの鳴音の多様性とその機能

  日本学術振興会：科学研究費助成事業 萌芽研究

  Date (from‐to) : 2004 -2005 

  Author : 松石 隆, 伊藤 精英

   

  飼育下におけるネズミイルカの鳴音の収録 B & K社製水中マイク8103型および他の研究経費にて開発したマイクアンプ試作器を用いて,サンプリング1MHz,量子化ビット数16bitにてネズミイルカ鳴音を収録する手法を確立し,2005年3月2日に小樽水族館にてネズミイルカ鳴音の収音を行った。 ネズミイルカの鳴音の多様性について 上記の鳴音および,2004年4月に臼尻水産実験所屋外水槽,2004年8月20日〜9月3日に小樽水族館にて収録した鳴音について,LPC分析を用いてクリック音のピーク周波数抽出を行い,その時系列変化を解析した。 その結果,1クリックの間に鳴音の周波数に変化が見られた。コウモリと同様の周波数変調された音をエコロケーションに使用している可能性が示唆された。 ネズミイルカの鳴音のクリックインターバルと行動の関係 2005年4月に臼尻水産実験所屋外水槽にて,給餌時の鳴音を収録した。同時に行動をビデオカメラにて収録し,目標物へのアプローチ行動と鳴音についての関係を調べた。その結果,クリックインターバルは2msおよび5msにピークを持った。これはエコロケーションで4mおよび1.5mに認識の照準をおいていることに相当する。ビデオ映像の解析より餌が提示されているときは餌の4m手前にて遊泳周回行動が変化していた。このことより,クリックによる認識が行動に影響を与えていることが強く示唆された。
• Studies on harbour porpoise Phocoena phocoena incidentally caught by fishing gears around Japan and the mechanism of bycatch

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 2003 -2005 

  Author : MATSUISHI Takashi, ITO Kiyohide, SASAKI Masato, IIDA Koji, SUZUKI Kentaro

   

  The stranding records of Harbour porpoise Phocena phocoena collected by Institute of Cetacean Research was analyzed and the high proportion of the stranding was reported on April and May. The most frequently reported stranding place was Usujiri (36 individuals) and the next was Shiraoi (7 individuals). The number of bycatch individuals confirmed by our survey was 16. From the observation of ovary, they were immature. The passability experiment was conducted in the pool of Otaru Aquarium for an individual and found that the 50% passable aperture width was 39cm and become narrower as the habituation. The tau dot analysis was conducted to find the approach speed control to the target. Tau was increased linearly and tau-dot was estimated as 0.772. There were two inflection points of tau at 2sec and 0.7sec before the target. From the behaviour observation, there were two peaks of inter crick intervals at 2ms and 5ms, which means the target of the echo-location was 1.5m and 4m. These result suggest that the target recognitions of harbour porpoise was occurred at 4m and 1.5m before the target using echo-location.
• 漁獲物の体長組成データにもとづく資源量推定法の推定精度評価と適用

  日本学術振興会：科学研究費助成事業 奨励研究(A)

  Date (from‐to) : 1997 -1998 

  Author : 松石 隆

   

  従来、水産資源の資源量推定には、漁獲物の年齢組成を用いたコホート解析(VPA)が広く行われてきていた。この方法は、標準化が困難な漁獲努力量を用いない点で優れているが、漁獲物の年齢査定を行わなければならない点で、困難である。多くの魚種では年齢査定は耳石によって行われるが、耳石を採取するためには魚体を購入しなければならず、高価な魚種では標本数が限定された。また、年齢査定には熟練を要するため、研究者が多くの時間を割かねばならなかった。 一方、漁獲物の体サイズは、年齢組成よりも容易に得ることができる。また、漁獲規制等を行う場合、漁獲物の体サイズに応じた制限(網目制限など)を行うことが一般的であるため、年齢ごとの解析結果よりも、体サイズによる解析結果の方が直接活用することができる。 本研究では、体長によるコホート解析(LPA)、体重によるコホート解析法(WPA)を確立し、この方法を道南海域に生息するスケトウダラ、マダラ資源に適用した。 スケトウダラ資源にVPA,LPA,WPAを適用した結果、どの推定法も同様な推定結果を示し、LPA,WPAの推定結果が従来の推定結果と同様に扱えることが示唆された。 マダラ資源にWPAを適用した結果、資源量の減少傾向が見られ、漁獲開始サイズを引き上げる漁獲規制を行うことによって、確実に漁獲量の増大が期待されることが示唆された。
• Response of the Key-species in Ecosystem to Multi-decadal Changes in the Subarctic Circulation

  Japan Society for the Promotion of Science：Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)

  Date (from‐to) : 1996 -1998 

  Author : OHTANHI Kiyotaka, ONISHI Hiroji, MATSUISHI Takashi, SAKURAI Yasunori

   

  Long-term variations in sea condition in the subarctic circulation connected with variation in the Aleutian Low system. Residence time index of the sea ice in the Bering Sea and the Okhotsk Sea indicated decadal changes which showed negative phase between them. Current path and transport in the subarctic circulation and the transition zone also changed inter-annually. Pelagic fishes such as the salmonoid and the squids changed in their distribution and abundance with inter-annual variation in sea conditions. Life history of the saury were discussed with modeling analysis based on catch-at-age data. Useful cohort analysis for the cods based on catch-at-weight data were proposed.
• 漁獲物の体長組成データに基づくコホート解析手法の開発と推定精度の評価

  日本学術振興会：科学研究費助成事業 奨励研究(A)

  Date (from‐to) : 1994 -1994 

  Author : 松石 隆

   

  【目的】従来のコホート解析は年齢別に行われるが、体長組成から年齢組成を推定したり、網目規制など体長に関する漁獲規制を検討する場合は、体長階級ごとにコホート解析を行う方が簡単であり、また体長-年齢変換に伴う誤差も除くことができる。演者らは、既に体長組成によるシングルコホート解析を提案したが、この方法では多くのパラメータを与える必要があった。そこで本講演では、Pope & Shepherd(1982)のマルチコホート解析の原理を応用した体長によるマルチコホート解析法を提案し、その精度を検討した。 【方法】まず、体長組成の推移を表現する遷移行列を作成する。個体の成長の履歴が分かる場合は直接、推移行列を推定できるが、年齢での平均体長と分散さえ得られれば、粗解析は可能である。次に、年ごとの漁獲強度を示すパラメータf_iと体長階級ごとの漁獲選択性を示すパラメータs_jを、以下の方法により推定する。最終年の漁獲量とf・sから最終年の資源量を計算し、これに遷移行列をかけ、自然死亡分をたし、前年の体長別資源量を計算する。これとf・sから前年の理論漁獲量が得られる。以上の手順を、データのある全ての年について順次行い、全期間の理論漁獲量を得る。理論漁獲量と実測漁獲量の残差平方和が最小になるようなf_i,s_jを、Apple社製Power Macintosh 6100/60上で非線形最適化法(シンプレックス探索法)を計算して求める。また、この方法の妥当性と精度を検討するために、さまざまなパラメータに誤差を導入した模擬データを作成し、設定した値と推定された値の誤差を検討した。 【結果】誤差を与えない模擬データを推定過程にかけると、設定した資源量などの値が高い精度で偏りなく推定された。また、成長曲線のまわりの偏差、成長曲線のパラメータの個体差、加入量の変動などを与えても、精度良く推定された。

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• ＜魚眼図＞査読

  Date : 2021/02/12

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 7ページ Paper
• 鯨類調査 信頼度さらに＊函館に事務局 研究者団体ＮＰＯ法人化＊活動安定へ常勤スタッフ雇用も

  Date : 2021/01/14

  Program, newspaper magazine: 北海道新聞

  朝刊地方（函館・渡島・桧山） 16ページ Paper
• 鯨肉需要 伸びず＊ＩＷＣ脱退３年目に＊消費喚起 解体所整備が課題

  Date : 2021/01/12

  Program, newspaper magazine: 北海道新聞

  朝刊全道（総合） 6ページ Paper
• ＜魚眼図＞髭板

  Date : 2020/12/08

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 5ページ Paper
• ＜魚眼図＞船酔い

  Date : 2020/09/28

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 3ページ Paper
• クジラの死骸 厚岸にも漂着＊町が埋設処理

  Date : 2020/08/06

  Program, newspaper magazine: 北海道新聞

  朝刊地方（釧路・根室） 14ページ Paper
• 霧多布岬にマッコウクジラ死骸＊体長１２メートル＊浜中町、きょうにも沖合投棄

  Date : 2020/07/31

  Program, newspaper magazine: 北海道新聞

  朝刊地方（釧路・根室） 14ページ Paper
• ＜魚眼図＞漁獲量最低更新の理由

  Date : 2020/07/20

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 3ページ Paper
• オホーツク沿岸で発見＊新種クジラ 英名に「Ｓａｔｏ」＊特定に貢献 佐藤さんたたえ

  Date : 2020/07/07

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） 24ページ Paper
• 希少種クジラ おなかに胎児＊松前に死骸 研究者「貴重」

  Date : 2020/06/19

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） 33ページ Paper
• ＜魚眼図＞ホッケ

  Date : 2020/05/26

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 2ページ Paper
• ＜魚眼図＞ネズミイルカ

  Date : 2020/03/23

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 2ページ Paper
• ＜クジラとわたし＞下＊北大鯨類研究会＊津軽海峡で地道に調査＊データ集め新発見も

  Date : 2020/01/17

  Program, newspaper magazine: 北海道新聞

  夕刊地方（函館・渡島・桧山） 9ページ Paper
• ＜魚眼図＞「パ」と「チ」

  Date : 2020/01/08

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 4ページ Paper
• ＜ひと２０１９＞松石隆さん＊クジラの新種を特定した北大大学院教授

  Date : 2019/12/01

  Program, newspaper magazine: 北海道新聞

  朝刊全道（総合） 3ページ Paper
• ＜魚眼図＞新種のクジラ

  Date : 2019/11/08

  Writer: Myself

  Program, newspaper magazine: 北海道新聞

  夕刊全道（文化） 4ページ Paper
• 寄りクジラ調査「費用安く重要」＊死んだ個体を利用 北大鯨類研シンポ

  Date : 2019/10/18

  Program, newspaper magazine: 北海道新聞

  夕刊地方（函館・渡島・桧山） 12ページ Paper
• 新種＊クロツチクジラを紹介＊１３日に北大鯨類研究会がシンポ

  Date : 2019/10/09

  Program, newspaper magazine: 北海道新聞

  朝刊地方（函館・渡島・桧山） 16ページ Paper
• ＜魚眼図＞鯨肉パワー

  Date : 2019/09/04

  Writer: Myself

  Program, newspaper magazine: 北海道新聞夕刊

  全道（文化） 4ページ Paper
• 北海道のクジラ「カラス」実は新種 研究チーム英誌に発表

  Date : 2019/09/02

  Program, newspaper magazine: 朝日新聞

  夕刊6頁東京本社 Paper
• 鯨類︓９０種⽬、新種「 クロツチクジラ 」 北⼤など発⾒

  Date : 2019/08/31

  Program, newspaper magazine: 毎日新聞

  西部朝刊24頁総合面 Paper
• オホーツク沿岸 新種クジラ＊北大など命名＊「クロツチクジラ」＊体の黒さ、小ささ特徴

  Date : 2019/08/31

  Program, newspaper magazine: 北海道新聞朝刊

  全道（社会） 29ページ Paper
• セミクジラ 知床沖気に入った？＊２年連続撮影＊６～７月に計２例

  Date : 2019/07/28

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） 30ページ Paper
• スジイルカ 様似に漂着＊気候変動で分布域拡大か

  Date : 2019/07/18

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  北海道新聞朝刊地方（苫小牧・日高） Paper NP244
• マッコウクジラ 死骸が海岸漂着＊死後すぐ「珍しい」

  Date : 2019/07/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  北海道新聞朝刊全道（社会） Paper NP243
• 函館のピアニスト石田さん＊恩師らと奏でる美しい調べ＊６日に芸術ホールで演奏会

  Date : 2019/06/28

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  北海道新聞夕刊地方（函館・渡島・桧山） Paper NP241
• ＜魚眼図＞寄鯨

  Date : 2019

  Writer: Myself

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  北海道新聞夕刊全道（文化 Paper NP242
• ＜フォーカス＞ＩＷＣ脱退通知＊捕獲数 見えぬまま＊消費拡大も不透明＊協調路線のマグロ 影響危惧

  Date : 2018/12/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  北海道新聞朝刊全道（総合） Paper NP240
• ＩＷＣ脱退表明＊道内水揚げ基地「期待」＊「鯨食文化 若い世代に」＊供給拡大 限定的見方も

  Date : 2018/12/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） Paper NP239
• 知床沖セミクジラ撮影＊専門家「泳ぐ映像珍しい」

  Date : 2018/08/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊全道（社会） Paper NP237
• 北水の研究 分かりやすく解説＊教員有志が「ブックス」創刊＊２カ月に１回発行「実学をアピール」

  Date : 2018/08/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方（函館・渡島・桧山） Paper NP236
• 根室の海岸 クジラ漂着＊絶滅危惧種か

  Date : 2018/07/29

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） Paper NP235
• ＜青函航路はいま 海峡の新しい風＞上＊クルーズへ進化＊多様な旅ＰＲし好調

  Date : 2018/06/26

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方（函館・渡島・桧山） Paper NP234
• 「クジラの漂着道内で年60件」北大教授，別海で講演

  Date : 2017/11/22

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊地域（道東） Paper NP238
• １９日に「音楽と語り」＊野付半島ネイチャーセンター

  Date : 2017/11/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方（釧路・根室） Paper NP233
• オウギハクジラ漂着＊函館・宇賀浦の海岸

  Date : 2017/05/12

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方（函館・渡島・桧山） Paper NP232
• アカボウクジラ？標津の砂浜に死骸＊根室海峡では珍しく

  Date : 2016/12/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方（釧路・根室） Paper NP231
• 漂流クジラを埋め立て処分＊室蘭市、１８０万円

  Date : 2016/07/26

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方（室蘭・胆振） Paper NP229
• 根室沖にシャチ死骸＊海保発見＊体長５．７メートル、体重３．３トン

  Date : 2016/04/14

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 釧路・根室 Paper NP225
• ＜いさり火＞松石隆＊元函館市公民館活性化ネットワーク代表、フルート奏者＊函館市公民館改修のもたらしたもの＊「マチネ」音楽会２５回 建物の価値再認識

  Date : 2016/03/13

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP224
• シャチの赤ちゃん 釧路に死骸漂着＊生態解明へサンプルに

  Date : 2016/02/24

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP223
• 求む！漂着クジラ情報＊海の環境保全にも一役

  Date : 2016/01/28

  Publisher, broadcasting station: 共同海運水産ニュース

  Program, newspaper magazine: 共同海運水産ニュース

  Paper NP222
• 求む！漂着クジラ情報＊北海道、死骸調べ生態把握

  Date : 2016/01/20

  Publisher, broadcasting station: 日本経済新聞

  Program, newspaper magazine: 日本経済新聞

  夕刊 Paper NP221
• 漂着クジラ・イルカ：情報提供を 生態解明や環境保全に 民間調査団体の北大大学院 准教授・松石さん ／北海道

  Date : 2016/01/18

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP220
• 南茅部にオウギハクジラ＊死骸漂着＊太平洋側では珍しく

  Date : 2016/01/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP219
• 函館市公民館 活性化できた＊市民団体「イキ！ネット」解散＊譜面台などの備品寄付

  Date : 2016/01/14

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP218
• 音楽とアート楽しもう＊第２回丘の上の芸術祭＊１１日 函館市公民館で開催

  Date : 2016

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方（函館・渡島・桧山） Paper NP230
• 昨年９月 急逝ソプラノ歌手・引地桂子さん＊皆に惜しまれ追悼音楽会＊１１日＊函館聖ヨハネ教会＊発起人、赤坂さん＊「常に挑戦 本当のプロだった」

  Date : 2016

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP228
• 道南のクジラ文化知って＊函館でフェス＊生態や食文化紹介

  Date : 2016

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP227
• クジラ文化 魅力知って＊５日初のフェス

  Date : 2016

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP226
• ＜いきいき通信＞函館＊ピアノの先生 初舞台

  Date : 2015/12/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP217
• 苫小牧の海岸にイシイルカ漂着

  Date : 2015/12/18

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP216
• クロマグロ「自粛」 道南困惑＊定置網豊漁で水産庁要請＊サケと混獲 選別困難

  Date : 2015/12/07

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（総合） Paper NP215
• 鯨類研究の発展に活用＊鱒浦で座礁の子クジラ＊北大研究者らがサンプル採取

  Date : 2015/10/16

  Publisher, broadcasting station: 網走タイムズ

  Program, newspaper magazine: 網走タイムズ

  Paper NP214
• ザトウクジラが座礁*鱒浦海岸＊オホーツク海で2例目

  Date : 2015/10/15

  Publisher, broadcasting station: 網走タイムズ

  Program, newspaper magazine: 網走タイムズ

  Paper NP213
• ザトウクジラ：北海道・網走に漂着 低気圧で力尽く？

  Date : 2015/10/15

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP212
• ザトウクジラ死骸網走の砂浜に漂着＊荒天影響か

  Date : 2015/10/15

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP211
• ザトウクジラ 死骸漂着＊網走の海岸＊台風の影響か

  Date : 2015/10/15

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 北見・オホーツク Paper NP210
• 学園祭 親子も満喫＊３連休初日 にぎわう

  Date : 2015/10/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP209
• 津軽海峡にもイルカ フェリーで出張講義＊北大鯨類研究会

  Date : 2015/06/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP208
• 漂着・混獲鯨類に理解を＊北大准教授ら研究報告＊羅臼

  Date : 2015/05/30

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP207
• ハッブスオウギハクジラ：珍クジラ漂着 北海道・様似の海岸

  Date : 2015/04/16

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP206
• 希少な種類のクジラ＊北大などの調査グループが解剖

  Date : 2015/04/16

  Publisher, broadcasting station: 日高報知新聞

  Program, newspaper magazine: 日高報知新聞

  Paper NP205
• 研究グループが解体、採集＊打ち上げクジラ＊生態解明に期待＊様似

  Date : 2015/04/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP204
• 珍クジラ「生きた状態」で漂着*道内外の研究者、標本採取*様似

  Date : 2015/04/16

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP203
• ５㍍のクジラ漂着＊ハッブスオウギハクジラか＊様似町大通の海岸に

  Date : 2015/04/15

  Publisher, broadcasting station: 日高報知新聞

  Program, newspaper magazine: 日高報知新聞

  Paper NP202
• 珍クジラなぜ？

  Date : 2015/04/15

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP201
• 希少種クジラ 様似に漂着＊道内過去数例、生態の解明期待

  Date : 2015/04/15

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） Paper NP200
• 音楽協会賞に松石さん選出＊奨励賞は吉本さん

  Date : 2015/01/10

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP198
• 津軽海峡のイルカとクジラ＊乗船客に生態紹介＊フェリーで体験教室＊北大鯨類研究会

  Date : 2014/10/24

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP197
• マッコウクジラの死骸漂着＊湧別

  Date : 2014/06/28

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） Paper NP196
• ネズミイルカ行動調査＊混獲防止へ北大など＊羅臼

  Date : 2014/06/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP195
• １５年の思い 歌にのせて＊コール・カトレア女声合唱団＊２１日函館で記念公演

  Date : 2014/06/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP194
• クジラの食文化味わって＊鯨類研究会が北水祭で提供

  Date : 2014/06/13

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP193
• 仮設プールでイルカすいすい＊定置網に迷い込む＊北大実験所で観察

  Date : 2014/04/26

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP192
• クジラの死骸が漂着＊留萌の海岸＊市、埋め立て処理へ

  Date : 2014/04/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 留萌・宗谷 Paper NP191
• 函館市公民館の保存訴える演奏会＊「マチネ」２５回で幕＊０７年から延べ４０００人鑑賞

  Date : 2014/03/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP186
• 公民館マチネ ２３日に最終回＊館存続へ改修工事＊「函館イキ！ネット」＊活動結実、目的果たす

  Date : 2014/03/18

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP185
• ＜研究最前線＞北大大学院水産科学研究院の松石隆准教授＊水産資源学＊持続可能な漁業 方策は

  Date : 2014/03/15

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP184
• ミンククジラ：小樽・朝里川河口で死骸見つかる ／北海道

  Date : 2014

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP199
• 漂着のクジラ死骸 解剖後、埋め立て

  Date : 2014

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 小樽・後志 Paper NP190
• ミンククジラ：⼩樽・朝⾥川河⼝で死骸⾒つかる ／北海道

  Date : 2014

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP189
• 珍しい！クジラの死骸＊小樽に漂着

  Date : 2014

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道（社会） Paper NP188
• 鯨の街「食文化失う」*中止命令*対象外捕鯨も不安

  Date : 2014

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 東京 Paper NP187
• 枝幸の発酵分解処理＊骨格標本に技術応用＊従来３年超、２週間で除肉

  Date : 2013/12/01

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版 社会 Paper NP183
• ＜こだま＞

  Date : 2013/10/29

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP182
• ザトウクジラの死骸漂流*苫小牧沖から引き揚げ

  Date : 2013/10/19

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  北海道・函館 Paper NP181
• 土中に３年以上 ２週間で骨だけに＊微生物で分解 シャチ標本化＊エゾシカの技術応用し着手＊枝幸

  Date : 2013/10/10

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 留萌・宗谷 Paper NP180
• ヘルシー鯨肉バーガー人気＊鮮魚即売や手作り水族館も＊「北水祭」秋から移行し開催

  Date : 2013/06/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP179
• 親とはぐれ迷い込み？ 紋別港に小型のイルカ現れる

  Date : 2013/06/14

  Publisher, broadcasting station: 北海民友新聞社

  Program, newspaper magazine: 北海民友新聞社

  Paper NP178
• イシイルカの子ども現れる＊紋別港＊親と離れ迷い込む？

  Date : 2013/06/14

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 北見・オホーツク Paper NP177
• 狭い駐車場不評＊本年度改修の函館市公民館＊利用者アンケート＊６割が整備「希望」

  Date : 2013/05/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP174
• 海岸にクジラの死骸＊体長５メートル＊江差に４年ぶり漂着

  Date : 2013/04/21

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP173
• 知内の漁港にクジラ＊住民、漁業者びっくり

  Date : 2013/01/23

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP172
• シャチがゴマフアザラシを…＊捕まえた瞬間捉えた＊羅臼沖＊斎野重夫さんが撮影

  Date : 2013

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP176
• 北大生と鯨料理店の元おかみ協力＊鯨肉コロッケのバーガーできた＊１５、１６日の北水祭で販売

  Date : 2013

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP175
• ホッケ漁 自主規制容認*削減量は各漁協判断 小樽地区組合長会

  Date : 2012/12/30

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP924
• クジラの死骸漂着＊専門家が解剖し調査＊羅臼

  Date : 2012/08/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP171
• 知の達人達＊漂着クジラ情報共有、標本に＊北海道大学大学院水産科学研究院 松石隆准教授

  Date : 2012/07/28

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP170
• 海岸にクジラの死骸＊根室・岬町 オホーツク海側はまれ

  Date : 2012/06/26

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP169
• 鯨類の漂着61頭＊餌求め沿岸に寄る？＊昨年の道内

  Date : 2012/06/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊全道 社会 Paper NP168
• クジラの死骸解体＊北大の学者ら学術研究で

  Date : 2012/05/30

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP167
• 苫小牧の浜に死んだクジラが漂着 ／北海道

  Date : 2012/05/29

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP166
• 海岸にクジラの死骸＊苫小牧市有明町

  Date : 2012/05/28

  Publisher, broadcasting station: 苫小牧民報朝刊

  Program, newspaper magazine: 苫小牧民報朝刊

  Paper NP165
• 羅臼沖にシャチの死骸

  Date : 2012/05/22

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP164
• イルカの漂着調査 マンガで紹介＊北大大学院・松石准教授ら研究＊子供の科学12月号「活動知って欲しい」

  Date : 2011/11/30

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP163
• クジラやイルカの漂着研究＊松石准教授(北大)らの活動を漫画で紹介＊全国誌「子供の科学12月号」に

  Date : 2011/11/24

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP162
• GOGO!ミルボ＊イルカ・クジラの110番!?

  Date : 2011/11/10

  Publisher, broadcasting station: 子供の科学74巻12月号

  Program, newspaper magazine: 子供の科学74巻12月号

  Paper NP161
• 標本展示や鯨肉販売*5，6日に北水祭

  Date : 2011/11/04

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP923
• 苫小牧の海岸で発見の死骸＊正体は珍種クジラ＊コマッコウ＊専門家の調査で判明

  Date : 2011/09/22

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP160
• クジラの死外漂着相次ぐ＊日高＊マッコウとミンク

  Date : 2011/05/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP158
• 今年初水揚げ クジラ店頭に＊函館＊放射能影響はなし

  Date : 2011/05/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP157
• シャチの群れ クジラ狩り＊羅臼沖

  Date : 2011/05/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP156
• ＜こだま＞

  Date : 2011/04/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP154
• 調査捕鯨：打ち切り 道内関係者「残念」「許せない」

  Date : 2011/02/19

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP922
• 資源回復 ５０センチの大物も＊ヒメマス釣り解禁＊洞爺湖

  Date : 2011

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 室蘭・胆振 Paper NP159
• ネズミイルカの回遊ルート解明＊北大など 放流調査＊道南から北方四島へ

  Date : 2011

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP155
• ｢ふるさと海岸」にイルカの死骸漂着

  Date : 2011

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP153
• シャチの骨枝幸へ＊北大など調査チームが解体

  Date : 2010/11/27

  Publisher, broadcasting station: 日刊宗谷

  Program, newspaper magazine: 日刊宗谷

  Paper NP152
• 漂着シャチは国内最大 オホーツクミュージアムえさし 骨格標本を展示へ

  Date : 2010/11/26

  Publisher, broadcasting station: 日刊宗谷

  Program, newspaper magazine: 日刊宗谷

  Paper NP921
• 幻のクジラ タイヘイヨウアカボウモドキ 漂着

  Date : 2010/11/10

  Publisher, broadcasting station: 子供の科学73巻12月号

  Program, newspaper magazine: 子供の科学73巻12月号

  Paper NP151
• 鯨肉販売量 今年は倍増＊６、７日に北水祭

  Date : 2010/10/30

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP150
• タイヘイヨウアカボウモドキ：希少クジラ、北限を更新 北海道・函館の海岸に漂着

  Date : 2010/09/28

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  東京朝刊 社会面 Paper NP920
• 希少クジラ：名前は「タイヘイヨウアカボウモドキ」です 函館に死骸漂着／北海道

  Date : 2010/09/28

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP149
• 珍種クジラ、函館漂着 国内２例目、タイヘイヨウアカボウモドキ ／北海道

  Date : 2010/09/27

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP148
• 珍種クジラ、函館漂着 国内２例目、タイヘイヨウアカボウモドキ ／北海道

  Date : 2010/09/27

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP147
• 漂着クジラ希少種と判明＊世界で十数頭確認国内2例目＊分布域見直しへ

  Date : 2010/09/27

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP146
• 函館漂着クジラ国内2例目珍種＊調査組織など確認

  Date : 2010/09/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP145
• 石崎町にクジラ漂着＊今日解剖調査＊珍しい種類？貴重な資料に

  Date : 2010/09/26

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP144
• クジラ 世界的珍種！？＊函館に死骸漂着

  Date : 2010/09/26

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP143
• 海岸にたびたび漂着 処理費用は自治体負担＊海獣死骸 悩みの種＊留萌管内沿岸＊小平でクジラ撤去

  Date : 2010/03/31

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 留萌・宗谷 Paper NP918
• 公民館で楽しむフルートの調べ

  Date : 2010/03/15

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP917
• クジラ迷い込む

  Date : 2010

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  朝刊 北海道 Paper NP919
• 津軽海峡でイルカ見よう＊フェリーの船上からウオッチ＊今月がピーク

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP142
• 全長１１メートル 情報満載＊マッコウクジラ漂着＊解体し研究材料に

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP141
• 八雲・落部漁港のクジラ＊死骸処理「大きすぎる」＊解体まで２日がかり

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP140
• 定置網にネズミイルカ＊函館・南茅部沖で今年初＊北大実験所のプールへ

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP139
• 落部漁港にクジラ＊体長１０メートル＊浅瀬に乗り上げ死亡＊八雲

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP138
• 今度は留萌でツチクジラ＊小平に続く＊日本海側で珍しい

  Date : 2010

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 旭川・上川 Paper NP137
• 津軽海峡にシャチ＊約２０年ぶり３頭を確認＊北大鯨類研

  Date : 2009/12/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP916
• 「竜田巻き」おいしいよ！*北大鯨類研究会*クジラの食文化アピール

  Date : 2009/11/13

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP915
• ＜発信２００９ 寄りクジラを追え ＳＮＨの挑戦＞下＊社会に還元＊鯨塚から歴史探る

  Date : 2009/10/22

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP914
• ＜発信２００９ 寄りクジラを追え ＳＮＨの挑戦＞中＊情報の宝庫＊海洋と人をつなぐ

  Date : 2009/10/21

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP913
• ＜発信２００９ 寄りクジラを追え ＳＮＨの挑戦＞上＊実績全国一＊調査網 全道カバー

  Date : 2009/10/20

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP912
• 鯨の食文化考えよう＊１５日にシンポ＊討論会や料理試食＊函館

  Date : 2009/08/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP909
• 例年の10倍超 鯨類標本採取20年度、55件を入手

  Date : 2009/06/18

  Publisher, broadcasting station: 水産経済新聞

  Program, newspaper magazine: 水産経済新聞

  Paper NP132
• 函館港にイルカ出現 魚追い20頭以上

  Date : 2009/04/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP131
• 函館沿岸に春の使者？北大 ネズミイルカ2頭捕獲

  Date : 2009/04/10

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP130
• 岸壁に巨体「でかい」＊漂着クジラ、市民ら見守る

  Date : 2009

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP911
• クジラの恵みに感謝 函館 関係者40人が慰霊祭

  Date : 2009

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP135
• 08年度の道内 鯨類の漂着増加 94頭 函館の研究組織まとめ 59頭標本に 生態解明に期待

  Date : 2009

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP133
• 病気などで弱り死んだ可能性も 苫小牧港のクジラ死骸現地調査

  Date : 2009

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP129
• 漂着したのはナガスクジラ

  Date : 2009

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP128
• 体長13メートル クジラ哀れ 貨物船に死がい引っ掛かる

  Date : 2009

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  Paper NP127
• 極めて珍しい漂着例 調査した松石北大准教授に聞く

  Date : 2009

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP126
• 入港船の船首にクジラ 体長12メートル、北大が解体 苫小牧港

  Date : 2009

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP125
• クジラ引っかけたまま入港＊貨物船、乗員気付かず＊苫小牧

  Date : 2009

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP124
• 「鯨すき丼」600食を完売 北大鯨研の展示販売会

  Date : 2008/11/10

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP123
• クジラ肉を販売 60人行列の人気 北大水産学部で大学祭

  Date : 2008/11/02

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP121
• 飲食店街にクジラ料理も 1、2日に北水祭

  Date : 2008/10/29

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP120
• 鯨肉の継承と普及へ 釧路市民300人が参加 鯨と食文化を語る集い

  Date : 2008/10/07

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP122
• 捕鯨へ理解深めて 釧路 「市民の集い」に300人

  Date : 2008/10/04

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 釧路・根室 Paper NP119
• クジラの死骸漂着 打ち上げは10年半ぶり 岩内

  Date : 2008/09/30

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 小樽・後志 Paper NP118
• 海洋資源の未来は＊研究者、漁業者らが討論＊函館

  Date : 2008/08/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP116
• 郷土博物誌 「寄鯨」 貴重な研究資料に利用

  Date : 2008/08/11

  Publisher, broadcasting station: 釧路新聞

  Program, newspaper magazine: 釧路新聞

  Paper NP117
• イシイルカ漂着急増 5月以降すでに１７頭

  Date : 2008/07/18

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP115
• 函館くじら普及協が開催 函館産ツチクジラ満喫

  Date : 2008/06/24

  Publisher, broadcasting station: 水産経済新聞

  Program, newspaper magazine: 水産経済新聞

  Paper NP114
• クジラの死骸漂着 太平洋岸では珍しい種 新ひだか

  Date : 2008/06/22

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 苫小牧・日高 Paper NP110
• 洞爺湖のヒメマス資源回復へ 支笏湖産の稚魚1万8千匹放流

  Date : 2008/06/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 室蘭・胆振 Paper NP109
• クジラをおいしく 21日に料理教室

  Date : 2008/06/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP108
• ヒメマスに標識作業 民学官がスクラム 育成目指し初めて

  Date : 2008/06/12

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  Paper NP111
• クジラの恵みに感謝 函館 水産関係者ら慰霊祭

  Date : 2008/05/24

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP102
• 海岸にイルカ死体 函館・大森浜

  Date : 2008/05/23

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  Paper NP101
• 大森浜海岸にイルカ打ち上げ

  Date : 2008/05/23

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP100
• ナゾ謎かがく イルカやクジラ、なぜ座礁 方向感失って浅瀬に入る？

  Date : 2008/05/11

  Publisher, broadcasting station: 日本経済新聞

  Program, newspaper magazine: 日本経済新聞

  Paper NP097
• クジラの恵みに感謝 函館くじら普及協 供養慰霊祭に５０人

  Date : 2008

  Publisher, broadcasting station: 水産経済新聞

  Program, newspaper magazine: 水産経済新聞

  Paper NP113
• 水産資源 持続＆利用 クジラ編 まずは「知る」ことから 学生の関心高く、活発に活動

  Date : 2008

  Publisher, broadcasting station: 水産経済新聞

  Program, newspaper magazine: 水産経済新聞

  Paper NP112
• クジラ悠々 江差沖、きれいな列

  Date : 2008

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP107
• 海岸にクジラ死骸 北見 ツチクジラのオスか 11年ぶり

  Date : 2008

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 北見・オホーツク Paper NP106
• クジラの死骸漂着 広尾の海岸 町「近づかないで」

  Date : 2008

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 帯広・十勝 Paper NP105
• 群れに異変？ アカボウクジラ死骸相次ぐ

  Date : 2008

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP104
• 珍種・アカボウクジラ 根室に２頭漂着 潜水艦音波で内耳損傷? ５月に次々 初山別にも

  Date : 2008

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP103
• クジラ情報 昨年度６４頭 例年の倍 研修者ら１１０番開設 現場に急行、標本採取

  Date : 2008

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP096
• 鯨類の座礁・混獲情報、２倍に 専用窓口設置し１年

  Date : 2008

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP095
• 観光のコラム/クジラのまち函館 ジャンボ(長生き)な鯨にあやかって、ビック(健康)な一年に

  Date : 2008

  Publisher, broadcasting station: 月刊 函館朝市観光新聞

  Program, newspaper magazine: 月刊 函館朝市観光新聞

  Paper NP094
• 北大鯨類研が北水祭に出店 鯨食文化の理解を深める ステーキ丼長蛇の列

  Date : 2007/11/13

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP093
• クジラ食べて関心持って 函館北水祭で料理、研究成果も

  Date : 2007/11/11

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  Paper NP092
• クジラ料理どうぞ 北大水産学部 大学祭で販売

  Date : 2007/11/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP091
• 大学祭にぎやかに 恒例のクジラ料理人気 北大水産学部

  Date : 2007/11/11

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP090
• 北大鯨類研究会 ヘルシーな鯨丼いかが!? あすから北水祭で販売

  Date : 2007/11/09

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP089
• クジラの研究発表やステーキ丼の販売も

  Date : 2007/11/07

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP088
• 北水祭会場はバリアフリーです 実行委メンバー奮闘 手製スロープ設置 クジラ肉も販売

  Date : 2007/11/07

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP087
• 800人が鯨談議で盛り上がる 特製「鯨弁当」も堪能 鯨と食文化を語る市民の集い

  Date : 2007/09/25

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP085
• 函館で鯨と食文化を語る集い 市民ら800人が出席 菅原文太さんの講演も

  Date : 2007/09/19

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP084
• 守ろう クジラ食文化 はこだてと密接な関係 菅原文太さん交えパネル討論

  Date : 2007/09/16

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP083
• クジラ食文化 考えよう 菅原文太さんらパネル討論、特製弁当配布

  Date : 2007/08/31

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP082
• 菅原文太さんと語る「クジラと食文化」＊函館・来月15日

  Date : 2007/08/29

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  北海道・函館 Paper NP908
• 鱗びと 函館でクジラを盛り上げる まずは混獲などの情報収集から フルートの演奏会前日には赤肉

  Date : 2007/07/31

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP077
• 鯨族供養慰霊祭に60人 函館くじら普及協主催

  Date : 2007/06/13

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP074
• 70人出席し連続講座第1弾 北大院の松石准教授が講演 函館くじら協

  Date : 2007/05/28

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP072
• クジラとイルカ 見分け方を紹介 普及協が講座

  Date : 2007/05/11

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP071
• 鯨類の座礁・混獲情報 110番開設以来、続々と 漁業被害対策にも活用

  Date : 2007/04/25

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP063
• 連続講座「鯨を学ぶ」 函館くじら普及協 5月からスタート

  Date : 2007/04/25

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP062
• 函館で鯨の連続講座

  Date : 2007/04/24

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP061
• 自由席 イルカ目視パンフに

  Date : 2007/04/21

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP060
• クジラの生態や料理学ぼう＊研究者ら講師 来月から講座＊函館

  Date : 2007/04/20

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP907
• イルカの混獲防げ 北大などの研究グループ、函館で調査 発信機で回遊ルート把握

  Date : 2007/04/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP059
• 北大などの研究グループ 発信機付け放流 行動調査や保全対策

  Date : 2007/04/19

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP058
• 鯨 もっと知ろう 普及協 来月から講座開催

  Date : 2007/04/18

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP057
• 鯨類研究へタッグ 生態解明狙い漂着・混獲の情報収集 「110番」設け住民参加も

  Date : 2007/03/28

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP053
• 座礁イルカ、クジラ報告を 研究者が「１１０番」開設 情報蓄積、生態解明し保全へ

  Date : 2007/03/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP052
• 「道いるか・くじら１１０番」開始

  Date : 2007/03/24

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP051
• 津軽海峡のイルカ情報掲載～北大鯨類研究会がリーフレット作成～

  Date : 2007/03/20

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP050
• イルカパンフで紹介～フェリー客に無料配布へ～ 北大鯨類研 津軽海峡の航路で調査

  Date : 2007/03/20

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  夕刊地方 函館・渡島・桧山 Paper NP049
• 感謝忘れず クジラ供養 函館で慰霊祭

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP086
• 日本鯨類研究所の石川さんに聞く 国内最大クラス 漂着したコククジラ 謎の回遊ルート解明期待

  Date : 2007

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP081
• クジラの標本化進む 現場近くに埋め、数年かけ白骨化

  Date : 2007

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP080
• クジラの死骸調査進む 苫小牧市が現地対策本部 研究者ら、骨格標本作りの準備も

  Date : 2007

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP079
• 錦岡の海岸にクジラの死骸

  Date : 2007

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  Paper NP078
• 「IWCは機能不全」 元代表代理小松氏講演 沿岸捕鯨の再開訴え

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP076
• IWCにとどまり日本200カイリ内で捕獲 小松・水研センターが理事が提案

  Date : 2007

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP075
• 漂着の鯨、感染の危険 研究者へ連絡呼び掛け 函館で講座

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP073
• コンサート収益金を公民館改修に 松石隆・北大院准教授ら 函館水産連合協も後援

  Date : 2007

  Publisher, broadcasting station: みなと新聞

  Program, newspaper magazine: みなと新聞

  Paper NP070
• イルカを追って 津軽海峡・０７春⑤ 熱意 研究や保護担う学生 講義では得られぬ魅力

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP069
• イルカを追って 津軽海峡・０７春④ 共存 電子機器で行動追跡 漁業被害防止へ生態探る

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP068
• イルカを追って 津軽海峡・０７春③ 仲間 ミンククジラも出現 環境変化？今年は多数

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP067
• イルカを追って 津軽海峡・０７春② 経路 日本海北上し二手に 噴火湾で繁殖の可能性も

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP066
• イルカ・クジラ打ち上げ 北大の研究者ら呼びかけ 1ヶ月で情報8件 事例増やし実態把握へ

  Date : 2007

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道・函館 Paper NP065
• イルカを追って 津軽海峡・07春① 調査 船上から目視し記録 水しぶき、噴気手掛かり

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP064
• ＜ひと２００７＞松石隆さん＊鯨類の座礁・漂着などの情報を募る＊海洋環境の変化探る

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP056
• クジラ座礁など情報を知らせて 「110番」スタート

  Date : 2007

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 釧路・根室 Paper NP055
• いるか・くじら110番 漂着情報で生態探れ! 研究者、保護と漁業被害対策に

  Date : 2007

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道朝刊社会面 Paper NP054
• 地域から漁業再生を 米澤理事長提言 水産庁パネル討論も 250人が出席 函館で開催全国資源管理推進会議

  Date : 2006/11/21

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP048
• 「鯨すき丼」など人気 北水祭で鯨類研究会が販売 用意の製品すべて売り切れ

  Date : 2006/11/17

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP047
• 鯨肉料理へ活用PR＊函館＊北大のサークルが販売

  Date : 2006/11/14

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  Paper NP906
• 北大水産学部「北大祭」子どもら魚の話に興味津々 施設内巡るツアー人気

  Date : 2006/11/12

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP046
• 鯨すき丼好評 北大きょうまで

  Date : 2006/11/12

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP045
• 北大鯨類研究会が学園祭で「鯨すき丼」を販売 牛丼風の味付けで人気、200食が完売

  Date : 2006/11/11

  Publisher, broadcasting station: BNN

  Program, newspaper magazine: BNN

  ニュース Paper NP044
• 安全おいしい鯨肉 「すき丼」初登場 北水祭であすから 汁とセット販売も

  Date : 2006/11/10

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 函館・渡島・桧山 Paper NP043
• 築73年の公民館「改修し再生を」＊函館＊演奏から勉強会＊「ホール不足」で注目

  Date : 2006/05/30

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP910
• クジラ：しけで遭難！？ビックリ－－秋田・下浜桂根の海岸 ／秋田

  Date : 2006/04/27

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  地方版／秋田 Paper NP905
• スクールボックス 北海道大学水産学部 「鯨類研究会」

  Date : 2006/03/17

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Links Paper NP041
• ’06 空から 初夏の道南 福島沖のイルカ 海面の曲芸鮮やか

  Date : 2006

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  函館 Paper NP042
• フンペの足跡 道東沖のクジラ 人間の管理技術が鍵に 人工繁殖や「牧場」構想

  Date : 2005/12/28

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  道東 Paper NP040
• ＱＲコード付き鯨肉やくじら汁が早々と完売 北水祭で大好評 北大鯨類研究会

  Date : 2005/11/30

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP039
• 北大水産学部・第４４回北水祭 今年も好評、クジラ汁！鯨類展示に長蛇の列

  Date : 2005/11/28

  Publisher, broadcasting station: クジラＴＯＰＩＣＳ

  Program, newspaper magazine: クジラＴＯＰＩＣＳ

  Paper NP038
• 好評！クジラ肉販売 北水祭

  Date : 2005/11/09

  Publisher, broadcasting station: 読売新聞

  Program, newspaper magazine: 読売新聞

  道南 Paper NP037
• 北大「北水祭」でのクジラ販売に函館市民が行列

  Date : 2005/11/06

  Publisher, broadcasting station: BNN

  Program, newspaper magazine: BNN

  ニュースショー Paper NP036
• クジラ汁にずらり

  Date : 2005/11/06

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP035
• クジラ肉販売盛況 北水祭 市民ら訪れにぎわう

  Date : 2005/11/06

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP034
• 北大水産学部で「北水祭」始まる 鯨肉限定販売やミニ水族館も

  Date : 2005/11/06

  Publisher, broadcasting station: 毎日新聞

  Program, newspaper magazine: 毎日新聞

  北海道・函館 Paper NP033
• 北大水産学部が「北水祭」でクジラ汁と鯨肉を限定販売

  Date : 2005/11/04

  Publisher, broadcasting station: BNN

  Program, newspaper magazine: BNN

  ワイドショー Paper NP032
• クジラ知って味わって 北水祭で肉、料理販売 流通経路など情報提供も

  Date : 2005/10/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  函館 Paper NP031
• 函館でセトロジー研究会＊「サハリン資源開発でコククジラに悪影響」＊米研究者＊事故や音に懸念

  Date : 2005/06/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊地方 Paper NP90４
• 函館でセトロジー研究会 「サハリン資源開発でコククジラに悪影響」 米研究者 事故や音に懸念

  Date : 2005/06/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP030
• 海の哺乳類 研究会が報告＊「シャチ座礁」原因も＊函館で25・26日

  Date : 2005/06/22

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP903
• 海の哺乳類、研究会が報告 「シャチ座礁」原因も 函館で２５・２６日 ／北海道

  Date : 2005/06/22

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP098
• 新仮説 カマイルカ北海道を一周 ２年かけ津軽海峡で鯨類調査

  Date : 2005/06/15

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP029
• 鯨類の専門家が成果発表 道内初25、26日 シャチの調査報告も

  Date : 2005/05/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 Paper NP026
• 新緑さわやか、初夏の訪れ 洞爺湖チップ釣り解禁

  Date : 2005

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  伊達民報 Paper NP028
• 狙うぞ大型！ヒメマス釣り 洞爺湖で解禁 釣果、昨年上回る

  Date : 2005

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  伊達 Paper NP027
• 500食、１時間で売り切れ 北大鯨類研 北水祭でクジラ丼、クジラ汁

  Date : 2004/11/10

  Publisher, broadcasting station: 日刊水産経済新聞

  Program, newspaper magazine: 日刊水産経済新聞

  Paper NP025
• 北大水産学部のバングラデシュ人留学生ホセインさんに山本賞 母国の漁業管理論文評価｢励みにし、さらに勉強｣

  Date : 2004/08/10

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP024
• 北大大学院の留学生ホセインさんの論文 国際会議「山本賞」に 資源管理型の漁業提唱

  Date : 2004/08/10

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  道南 Paper NP023
• おなかに体長3メートルの胎児～アカボウクジラを国立科学博物館が解剖

  Date : 2004/05/10

  Publisher, broadcasting station: 苫小牧民報

  Program, newspaper magazine: 苫小牧民報

  白老・胆振東部・日高版 Paper NP022
• 定置網混獲のネズミイルカ北大生防止策検討へ 南茅部 昨年調査，学会で報告

  Date : 2003/04/18

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  道南 Paper NP020
• イルカ調査 北大鯨類研 津軽海峡で目視

  Date : 2003

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP021
• イルカの物体認識は～水槽になれる過程解析

  Date : 2002/04/26

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP015
• 南茅部沖、定置網の中に…ネズミイルカの生態調査 北大鯨類研究会、観察データを収集 網混入防止策探る

  Date : 2002/04/25

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 Paper NP014
• 釣り楽しめる方法を～道南の愛好者が交流会

  Date : 2002/03/18

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  道南 Paper NP013
• 「ニシン呼ぶ」漁の神

  Date : 2002/01/21

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  道南 Paper NP012
• 洞爺湖のヒメマス、２万１０００匹 昨年分、北大が調査

  Date : 2002

  Publisher, broadcasting station: 朝日新聞

  Program, newspaper magazine: 朝日新聞

  朝刊 北海道 Paper NP902
• チップ調査に協力を

  Date : 2002

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  Paper NP019
• チップ釣り好調 平均で約１００匹

  Date : 2002

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  Paper NP018
• 大物狙い１５０隻 ”出漁″ 初日、釣果はいまひとつ

  Date : 2002

  Publisher, broadcasting station: 室蘭民報

  Program, newspaper magazine: 室蘭民報

  Paper NP017
• あたり待ち辛抱強く…ヒメマス釣り解禁 早朝から２００人湖面へ 洞爺湖

  Date : 2002

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  地方 Paper NP016
• 魚のリリース 有効性を実証

  Date : 2001/03/22

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  函館 Paper NP011
• 窓

  Date : 2001/03/18

  Publisher, broadcasting station: 日本経済新聞

  Program, newspaper magazine: 日本経済新聞

  Paper NP901
• マダラの漁獲量 道南は増加 陸奥湾で減少

  Date : 2000/10/24

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP010
• 捕鯨の歴史 詳しく紹介

  Date : 2000/10/19

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  函館 Paper NP009
• ホタテ養殖施設増 原因?

  Date : 2000/10/04

  Publisher, broadcasting station: 東奥日報

  Program, newspaper magazine: 東奥日報

  Paper NP008
• 意外な相関関係 マダラとホタテ

  Date : 2000/09/27

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  Paper NP007
• 賛否渦巻くサンマ選別機～加工業者「資源絶やす」漁業者「影響少ない」業界紙広告で論争

  Date : 2000/06/28

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  朝刊全道遅版社会 Paper NP005
• 科学的根拠に基づくルールづくりが必要

  Date : 2000/03/22

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP004
• 鯨の生態を探れ・大学生の挑戦

  Date : 2000

  Publisher, broadcasting station: NHK

  Program, newspaper magazine: NHK

  函館放送局 (ニュース北海道) Paper NP006
• クジラの生態解明するぞ

  Date : 2000

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  函館 Paper NP003
• クジラに熱視線…研究会発足

  Date : 2000

  Publisher, broadcasting station: 函館新聞

  Program, newspaper magazine: 函館新聞

  Paper NP002
• 洞爺湖のチップ漁獲量 遊漁，漁業の2.6倍

  Date : 1999/05/20

  Publisher, broadcasting station: 北海道新聞

  Program, newspaper magazine: 北海道新聞

  室蘭 Paper NP001

Academic Contribution

• Editor in Chief of Fisheries Science

  Date (from-to) :2024/03/01-Today

  Role: Planning etc

  Type: Academic society etc

  Organizer, responsible person: The Japanese Society of Fisheries Science
• President of the Stranding Network Hokkaido

  Date (from-to) :2020/11/19-Today

  Role: Others

  Type: Academic society etc

  Organizer, responsible person: Stranding Network Hokkaido
• Editorial Board Member of Journal of Fisheries and Environment

  Date (from-to) :2018/01-Today

  Role: Peer review

  Type: Peer review etc

  Organizer, responsible person: Faculty of Fisheries, Kasetsart University
• Editor in Chief of Japan Cetology

  Date (from-to) :2007-Today

  Role: Peer review

  Type: Academic society etc

  Organizer, responsible person: Cetology Study Group of Japan
• 日本水産学会 編集副委員長

  Date (from-to) :2021/03/01-2024/02/29

  Role: Peer review

  Type: Academic society etc

  Organizer, responsible person: 公益社団法人 日本水産学会
• Editorial Board of the Japanese Society of Fisheries Oceanography

  Date (from-to) :2013/04-2017/03

  Role: Peer review

  Type: Peer review etc

  Organizer, responsible person: The Japanese Society of Fisheries Oceanography
• Editorial Board of the Japanese Society of Fisheries Science

  Date (from-to) :2007/04-2011/03

  Role: Peer review

  Type: Peer review etc

  Organizer, responsible person: The Japanese Society of Fisheries Science

Others

• 2020/04 - Today 水産科学研究院労働者過半数代表