松野 孝平 (マツノ コウヘイ)

北方生物圏フィールド科学センター准教授
北極域研究センター准教授

研究者基本情報

■ 学位
  • 水産科学, 北海道大学, 2013年03月
■ URL
researchmap URLホームページURL■ ID 各種
研究者番号
  • 90712159
J-Global ID■ 研究キーワード・分野
研究キーワード
  • 赤潮
  • PlanktoScope
  • FlowCam
  • ZooScan
  • 珪藻類
  • マイクロプランクトン
  • 気候変動
  • グリーンランド
  • 南極海
  • サイズ組成
  • セジメントトラップ
  • 群集構造
  • 植物プランクトン
  • カイアシ類
  • 北極海
  • 動物プランクトン
研究分野
  • ライフサイエンス, 水圏生産科学, プランクトン
  • 環境・農学, 環境動態解析
■ 担当教育組織

経歴

■ 経歴
経歴
  • 2025年09月 - 現在
    北海道大学, 北方生物圏フィールド科学センター 水圏ステーション, 准教授
  • 2017年10月 - 2025年08月
    北海道大学, 大学院水産科学研究院 海洋生物資源科学部門 海洋生物学分野, 助教
  • 2019年02月 - 2019年06月
    University of Tasmania, Antarctic Climate and Ecosystems (ACE) CRC, Adjunct Professor
  • 2016年04月 - 2017年09月
    オーストラリア南極局, JSPS 海外特別研究員
  • 2013年04月 - 2016年03月
    国立極地研究所, 国際北極環境研究センター, 特任研究員
学歴
  • 2008年04月 - 2013年03月, 北海道大学, 大学院水産科学院, 海洋生物資源科学, 日本国
  • 2004年04月 - 2008年03月, 北海道大学, 水産学部, 水産海洋科学
委員歴
  • 2024年09月 - 現在
    PICES Advisory Panel on the Arctic Ocean and the Pacific Gateways (AP-ARC), 委員
  • 2020年03月 - 現在
    JCAR, 北極域研究船利用計画WG 委員, 学協会
  • 2021年04月 - 2025年03月
    日本プランクトン学会, 評議員, 学協会
  • 2020年12月 - 2023年11月
    PICES, Working Group 44: Joint PICES/ICES Working Group on Integrated Ecosystem Assessment for the Northern Bering Sea - Chukchi Sea (NBS-CS) Member, 学協会

研究活動情報

■ 受賞
  • 2018年05月, 日本海洋学会, 日本海洋学会岡田賞
    松野孝平
  • 2017年03月, 日本プランクトン学会, 日本プランクトン学会奨励賞
    松野孝平
  • 2016年03月, 国立極地研究所, GRENE北極気候変動研究 若手賞
    松野孝平
  • 2013年03月, 北海道大学大学院水産科学院, 伊藤一隆賞
    松野孝平
  • 2012年03月, 2012年度日本海洋学会春季大会, ベストポスター賞
    松野孝平
■ 論文
  • Effects of settled diatoms on autumn phytoplankton blooms in the Pacific Arctic: A process study of sediment resuspension in the Chukchi shelf
    Yuri Fukai; Amane Fujiwara; Kohei Matsuno
    PLOS One, 21, 8, e0357159, e0357159, Public Library of Science (PLoS), 2026年08月28日, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌), Autumn phytoplankton blooms are increasingly observed in the Arctic Ocean due to more frequent strong wind events over open waters. A recent study on the Chukchi shelf suggested that diatoms in sediments can resuspend to the surface during such events, potentially acting as a seed population for blooms. To investigate how resuspended diatoms could influence the dynamics of autumn bloom, we conducted an in situ incubation experiment under two conditions: (1) only nutrients are supplied to and (2) nutrients and microalgae-containing bottom-sediments are inoculated to phytoplankton community. Both experimental conditions resulted in increased microalgal biomass, particularly diatoms. Sediment input enhanced initial biomass, accelerating the transition to the bloom state, whereas the photophysiological parameters, including the maximum specific growth rate and the maximum quantum yield of photosystem II, were similar in both treatments. When only nutrients were supplied, Arcocellulus spp. and common autumn diatoms in the Chukchi Sea, including Rhizosolenia spp. and Leptocylindrus spp., prevailed. Meanwhile, diatoms typically present on the seafloor, such as the Chaetoceros socialis complex, Chaetoceros spp., and Thalassiosira spp., dominated the assemblage when sediments were inoculated. These results indicate that sediment resuspension to the surface potentially influences autumn bloom characteristics, affecting bloom development rate, size structure, and diatom community diversity and composition.
  • Population dynamics and cell size structure of Karenia mikimotoi during an algal bloom event in Hakodate Bay, Japan
    Hoi Ching Lau; Akihide Kasai; Shoko Tatamisashi; Masahide Wakita; Kwee Siong Tew; Kohei Matsuno
    Regional Studies in Marine Science, 98, 105061, 105061, Elsevier BV, 2026年06月, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌), 50794126;50794360
  • Effects of different freshwater sources on microplankton in the Western Arctic Ocean
    Dai Sumiyoshi; Manami Tozawa; Amane Fujiwara; Kohei Matsuno
    Frontiers in Marine Science, 13, 13, Frontiers Media SA, 2026年05月13日, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌), While freshwater input into the western Arctic Ocean is increasing, studies evaluating the impacts of different freshwater sources—namely river water and sea-ice meltwater—on microplankton remain limited. In this study, we examined microplankton and hydrographic conditions during the late summers of 2021, 2023, and 2024 to evaluate the influences of different freshwater sources. Microplankton were identified and counted using an inverted microscope. In addition to water temperature, salinity, and nutrient concentrations, the fractions of river runoff ( f rro ) and sea ice meltwater ( f simw ) were estimated. High microplankton abundance (56,000 cells L −1 ) was observed in the group strongly influenced by river water ( f rro : 3%) but less affected by sea ice meltwater ( f simw : 7%), whereas the group strongly influenced by both freshwater sources ( f rro : 4%, f simw : 15%) exhibited low abundance (530 cells L −1 ). In the former group, a lower overall freshwater proportion may have inhibited the full development of salinity stratification, allowing enhanced nutrient supply from deeper layers through upwelling. Therefore, nutrient-demanding taxa such as Chaetoceros dominated in the group. In contrast, strong salinity stratification in the latter group may have limited nutrient supply to surface waters. Consequently, heterotrophic taxa such as ciliophora tended to dominate. To our knowledge, this study provides one of the first evaluations of how different freshwater sources influence microplankton in the western Arctic Ocean. We compared the effects of freshwater accumulation on microplankton across different regions. Our results indicate that phytoplankton proliferation can be either promoted or suppressed depending on differences in freshwater sources and their complex interactions with environmental factors. This study provides a detailed assessment of how distinct freshwater sources, such as river water and sea ice meltwater, influence microplankton dynamics in the western Arctic Ocean. Furthermore, in 2021, sea ice melt was unusually delayed, and extensive sea ice remained even in the late summer. We also examined whether this unusually extensive sea ice influenced the microplankton community structure. Together, these results highlight the importance of considering both the magnitude and source of freshwater input, as well as sea-ice conditions, when evaluating microplankton dynamics in the western Arctic Ocean., 50794126;51318736;50850986;46097578
  • Relationship Between the Distribution of Gray Whales (<i>Eschrichtius robustus</i>) and Two Types of Prey in the Northern Bering and Chukchi Seas
    Yuka Iwahara; Kazushi Miyashita; Yutaka Watanuki; Atsushi Yamaguchi; Takashi Uyama; Bungo Nishizawa; Tsubasa Nakano; Hiroko Sasaki; Keiko Sekiguchi; Kohei Matsuno; Yoko Mitani
    ARCTIC, 78, 3, 236, 250, The Arctic Institute of North America, 2026年04月07日, [査読有り]
    英語, 研究論文(学術雑誌), We examined the distributional relationship between gray whales and their prey, benthic amphipods and euphausiids, using data collected from shipboard surveys in the Pacific Arctic. We conducted four survey cruises (in 2007, 2008, 2012, and 2013) in the northern Bering Sea, Chukchi Sea, and adjacent waters, and collected data on cetacean sightings, including gray whales, benthic amphipods by benthic grabs, and euphausiids using plankton nets. We observed a total of 160 gray whales from 55 groups during the four surveys. Statistical analysis across the study area using a generalized linear model indicated that gray whale distribution was related to benthic amphipods, whereas their relationship with euphausiids was unclear. The Distributed Biological Observatory 3 (DBO3) area off Point Hope, Alaska, had the highest density of gray whales (0.035 individuals/km2, hereafter referred to as ind./km2) in the fall of 2012 compared with the densities of the other surveys (0.00 – 0.006 ind./km2). Higher biomass of euphausiids and higher average wet weight of a single euphausiid were also observed in the fall of 2012, which may have contributed to the high density of gray whales. Aligning with previous direct confirmation by visual whale surveys and prey sampling in the fall of 2003, the present study confirmed that, in the fall of 2012, the DBO3 area was an area where gray whales could feed on both benthic amphipods and euphausiids.
  • Seasonal Variation in Diatom Availability and Utilization by Juvenile Japanese Sea Cucumber Apostichopus japonicus
    Takuma Matsumoto; Kohei Matsuno; Yuji Anaguchi; Nobuharu Inaba
    Microorganisms, 14, 3, 677, 677, MDPI AG, 2026年03月16日, [査読有り]
    英語, 研究論文(学術雑誌), Diatoms are considered an important food source for the commercially valuable sea cucumber Apostichopus japonicus. However, food sources for juvenile A. japonicus in the wild remain understudied, despite their importance for effective stock enhancement. In this study, seasonal diatom assemblages and viability in the feces of juvenile A. japonicus and in the feeding environments (biofilm, water column) were investigated using direct microscopy to evaluate diatom availability and utilization by the juveniles. Additionally, a laboratory feeding experiment was conducted to examine the digestibility of the predominant diatom (Tabularia) in the feces during the field survey. Field surveys have shown that diatoms are a major food item for juveniles, although their contribution varies seasonally with shifts in dominant food sources. Notably, Tabularia spp. occurred at a higher relative proportion in fecal assemblages than in the feeding environments and exhibited high mortality in the feces (96.3 ± 2.4%). Consistently, laboratory experiments showed marked degradation of intracellular contents in Tabularia sp. after excretion, supporting its digestibility. These findings have broadened our understanding of optimal food sources for A. japonicus juveniles as well as their feeding ecology in natural environments, informing the selection of more suitable diets and potentially enhancing stock enhancement practices.
  • Synthesis of spatiotemporal variability in western Arctic zooplankton communities from summer to fall during 2008–2021
    Jee-Hoon Kim; Yuya Hibino; Eun Jin Yang; Kyoung-Ho Cho; Hyoung Sul La; Sung-Ho Kang; Jeong-Hyun Kim; Hyeju Yoo; Jong-Kuk Moon; Yoshiyuki Abe; Nanami Hosoda; Atsushi Yamaguchi; Kohei Matsuno
    Progress in Oceanography, 241, 103634, 103634, Elsevier BV, 2026年01月, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌), 45292537;50794342;46097578;45070011
  • Zooplankton diel vertical migration and sediment resuspension detected from CEOF analysis of ADCP backscatter in the western Sea of Okhotsk
    Kay I. Ohshima; Mamoru Ohshima; Masato Ito; Kazuki Nakata; Mizuki Kuga; Kohei Matsuno; Atsushi Yamaguchi
    Progress in Oceanography, 241, 103630, 103630, Elsevier BV, 2026年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Influence of early sea ice melting on the autumn microplankton community of the Pacific Arctic Ocean
    Kohei Sumiya; Dai Sumiyoshi; Kazutoshi Sato; Akihiko Murata; Shigeto Nishino; Kohei Matsuno
    Polar Science, 46, 101255, 101255, Elsevier BV, 2025年12月, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌), 50794126;51318736;46097578
  • Comparison of the ecology of pelagic copepods as basibionts and suctorian ciliates as epibionts in the subarctic Pacific
    Daiki Kojima; Shuo Wang; Kohei Matsuno; Goh Nishitani; Atsushi Yamaguchi
    Journal of Plankton Research, 47, 6, Oxford University Press (OUP), 2025年10月07日, [査読有り]
    英語, 研究論文(学術雑誌), ABSTRACT

    Suctorian ciliates are widely distributed in both freshwater and marine environments. In the open ocean, they attach to crustacean zooplankton, specifically copepods, as epibiont hosts. However, criteria for host preference in oceanic areas remain unclear. In this study, we conducted a molecular analysis, examined copepod community relationships and performed laboratory-rearing experiments on suctorian ciliates in the subarctic Pacific. Suctorians belonging to five genera and species were observed on the exoskeletons of 20 copepod species across 10 genera. Additionally, species-specific host preferences were observed. Molecular analyses revealed intraspecific variations and haplotypes in suctorian ciliates, with no correlation between the haplotypes and host copepods or geographical location. Suctorians did not prefer numerically dominant or large-sized copepod species but favored deep-sea or diel vertical migration (DVM) species, specifically carnivorous copepods. A high suctorian prevalence was observed during the late copepodite stages, specifically among adult females and in regions with cold waters. These characteristics indicate that suctorians rely on prey or host molting events. Laboratory experiments confirmed novel suctorian attachments and growth from swarmer to trophont within 24 h. This study indicates that suctorian epibionts prefer late copepodite stages in deep-sea habitats, exhibiting DVM, prolonged stage duration and low predation risk.
  • Changes in the coastal environments and their impact on society in the Qaanaaq region, northwestern Greenland
    Shin Sugiyama; Atsushi Yamaguchi; Tatsuya Watanabe; Yasumasa Tojo; Naotaka Hayashi; Jean-Baptiste Thiebot; Makoto Tomiyasu; Kohei Hasegawa; Yoko Mitani; Mayuko Otsuki; Yuta Sakuragi; Monica Ogawa; Kenzo Tanaka; Kaisei Sakurai; Kohei Matsuno; Naoya Kanna; Evgeny Podolskiy; Ryo Kusaka; Yefan Wang; Takuro Imazu; Kaho Watanabe; Ken Sato; Shinta Ukai; Soratakato Yamada; Ken Kondo; Shintaro Yamasaki; Kazutaka Tateyama; Kazutoshi Sato; Jun Inoue; Taro Mori; Tatsuya Fukazawa; Aqqalu Rosing-Asvid; Kirsty Langley; Andrea M.U. Gierisch; Jenna Sutherland; Toku Oshima
    Polar Science, 45, 101206, 101206, Elsevier BV, 2025年09月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Towards an integrated assessment of the Arctic marine ecosystems in response to abrupt environmental changes: Contribution from the Arctic challenge for sustainability II (ArCS II) project
    Takafumi Hirata; Irene D. Alabia; Amane Fujiwara; Yuri Fukai; Jorge García Molinos; Akihide Kasai; Tatsuya Kawakami; Kohei Matsuno; Jonaotaro Onodera; Takuhei Shiozaki; Hiromichi Ueno; Eiji Watanabe
    Polar Science, 45, 101260, 101260, Elsevier BV, 2025年09月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Mass Occurrence of Walleye Pollock Gadus chalcogrammus (Gadidae) in the Surface Layer of the Oyashio Basin (Western North Pacific): Possible Benefit from Abundant Copepods
    O. Yamamura; K. Matsuno; M. Ohwada; Y. Kamei
    Journal of Ichthyology, 65, 3, 488, 494, Pleiades Publishing Ltd, 2025年04月18日, [査読有り]
    英語, 研究論文(学術雑誌)
  • Quantitative evaluation of <i>Karenia</i> cells using FlowCam: Applying to its distribution in Hidaka Bay, southern Hokkaido, northern Japan during autumn 2022
    Hikaru Kubo; Takahiro Iida; Keiri Imai; Atsushi Ooki; Kohei Matsuno
    Plankton and Benthos Research, 20, 1, 1, 11, The Plankton Society of Japan/The Japanese Association of Benthology, 2025年02月28日, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • 4連ノルパックネット採集における濾過効率と海洋環境との関係:夏季の南極海インド洋区での例
    前田百合香; 松野孝平; 杉岡陸人; 村瀬弘人
    日本プランクトン学会報, 72, 1, 1, 6, 2025年02月25日, [査読有り], [責任著者]
    日本語, 研究論文(学術雑誌)
  • Spatio-temporal changes in the macrozooplankton community in the eastern Indian sector of the Southern Ocean during austral summers: A comparison between 1996 and 2018–2019
    Ippei Urabe; Kohei Matsuno; Rikuto Sugioka; Ryan Driscoll; Sara Driscoll; Fokje L. Schaafsma; Atsushi Yamaguchi; Ryuichi Matsukura; Hiroko Sasaki; Hiroto Murase
    Progress in Oceanography, 231, 103414, 103414, Elsevier BV, 2025年02月, [査読有り], [責任著者]
    英語, 研究論文(学術雑誌)
  • Effect of delayed sea ice retreat on zooplankton communities in the Pacific Arctic Ocean: a generalized dissimilarity modeling approach
    Yuya Hibino; Kohei Matsuno; Amane Fujiwara; Yoshiyuki Abe; Nanami Hosoda; Motoyo Itoh; Atsushi Yamaguchi
    Frontiers in Marine Science, 12, Frontiers Media SA, 2025年01月29日, [査読有り], [責任著者], [国際誌]
    英語, 研究論文(学術雑誌), Introduction

    Sea ice extent increased in the Pacific Arctic Ocean during 2021 owing to the reversal of the Beaufort Gyre, unlike in previous years. The increased sea ice concentration may restore the marine ecosystem to its previous state; nevertheless, the precise conditions and mechanisms involved remain unclear.

    Methods

    In this study, the 2008–2017 period was defined as “the sea ice retreat year,” and its zooplankton community distribution representative was estimated using generalized dissimilarity modeling (GDM). Subsequently, we assessed the effect of delayed sea ice melt on the zooplankton community by comparing the zooplankton community of the sea ice retreat year with that in 2021.

    Results

    In GDM, numerous satellite parameters significantly affected the zooplankton distribution, with the highest effect during the open-water period and annual primary production (APP) and the lowest in water temperature. The effect of APP and temperature on zooplankton similarity was high around the Bering Strait owing to the advection of Pacific copepods (Eucalanus bungii, Metridia pacifica, and Neocalanus spp.) and synchronized inflow of warm Pacific water. Under significant warming scenarios (Shared Socioeconomic Pathway [SSP]1-2.6 and SSP5-8.5), GDM-based multiple effects predicted that the zooplankton communities in high latitudes will be more affected than those on the southern shelf (northern Bering Sea to southern Chukchi Sea). In 2021, the total abundance across the northern Bering Sea to the Chukchi Sea shelf region was lower than that of the community during the sea ice retreat year. However, certain species (Limacina helicina and Pacific copepods) increased locally (northern Bering Sea and Barrow Canyon) because of the increasing volume of Pacific origin water.

    Discussion

    Contrary to the reported increase trend on zooplankton, low primary productivity and phenological mismatch for zooplankton may prevail in the Pacific Arctic Ocean, resulting in a low abundance during autumn 2021.
  • Mortality Risk of Juvenile Japanese Sea Cucumber Apostichopus japonicus by the Sympatrically Occurring Hermit Crab Paguristes ortmanni
    Nobuharu Inaba; Takuma Matsumoto; Yuji Anaguchi; Kohei Matsuno
    Aquaculture Research, 2025, 1, Wiley, 2025年01月, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌), The density of the hermit crab, Paguristes ortmanni, in the artificial reef of juvenile Apostichopus japonicus increased almost threefold from June to December 2018. Calcareous ossicles of A. japonicus were identified from the stomach contents in 28.8% of the hermit crabs (18.6% in males and 10.2% in females) in December; season hatchery‐produced juveniles are frequently introduced into the wild in Hokkaido, Japan. The mortality rate of juvenile A. japonicus by P. ortmanni was estimated to be 2.5 ± 2.4 individuals day−1 based on laboratory predation experiments. Interestingly, 3% to 5% of individuals survived despite being attacked and injured in all trials, escaping on the shells of hermit crabs. Over 50% of females in the ossicle‐not‐detected group had shield lengths (SLs) smaller than the smallest individual in the ossicle‐detected group. The average SL of the ossicle‐detected group in females was significantly higher (p< 0.01) than that of the not‐detected group, indicating an increased predation risk for A. japonicus juveniles when larger female P. ortmanni were present. The present study offers new insights into the predatory behavior of P. ortmanni toward A. japonicus juveniles, showing that these sympatric hermit crabs present a considerably high mortality risk to A. japonicus juveniles. It also emphasizes the importance of implementing appropriate measures to protect juveniles from predators during the release process, providing an essential viewpoint for enhancing and rebuilding the wild population of commercially important endangered A. japonicus.
  • Vertical variations in zooplankton size spectra down to 3,000 m depth and significant effects of the sizes of Calanoida and Ergasilida across the subarctic, transitional, and subtropical regions of the western North Pacific
    Dongwoo Kim; Sota Komeda; Kohei Matsuno; Atsushi Yamaguchi
    Deep Sea Research Part I: Oceanographic Research Papers, 104445, 104445, Elsevier BV, 2025年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal changes in the protist communities of Hakodate Bay, southern Hokkaido, from 2020 to 2022
    Yusuke Hamao; Kyosei Morimoto; Shoko Tatamisashi; Masahide Wakita; Akihide Kasai; Kohei Matsuno
    Regional Studies in Marine Science, 78, 2024年12月15日, [査読有り], [最終著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Spatiotemporal changes in the community and demography of mesozooplankton in the eastern Indian sector of the Southern Ocean during austral summer 2018/2019
    Kohei Matsuno; Rikuto Sugioka; Yurika Maeda; Ryan Driscoll; Fokje L. Schaafsma; Sara Driscoll; Atsushi Yamaguchi; Ryuichi Matsukura; Hiroko Sasaki; Hiroto Murase
    Progress in Oceanography, 229, 103360, 103360, Elsevier BV, 2024年12月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • The modified artificial cohort method for three dominant pelagic copepods in the northern North Pacific revealed species-specific differences in the optimum temperature
    Takumi Teraoka; Shuya Nagao; Kohei Matsuno; Atsushi Yamaguchi
    Frontiers in Marine Science, 11, 1397721, 1397721, Frontiers Media SA, 2024年10月02日, [査読有り]
    英語, 研究論文(学術雑誌), The most concerning recent ocean changes in temperature issues are known as marine heat waves. Under these conditions, it is important to evaluate the effects of temperature on zooplankton. In this study, we investigated the growth rates of three dominant copepod species (Eucalanus bungii, Metridia pacifica, and Neocalanus plumchrus) in the northern North Pacific under three different temperature conditions (3, 7, and 11°C) using an artificial cohort method. Experimental conditions for 42 hour incubations were set to light intensity and photoperiod corresponding to 50 m depth. The dissolved oxygen solubility after rearing ranged from 69.2% to 102.1%, suggesting sufficient conditions for copepod growth. Chlorophyll a increased in 83% of the experiments, indicating that the food conditions were sufficient for the copepods. The mean proportion of dead specimens evaluated using neutral red was 10.2%, corresponding with the reported values in the field. Thus, it can be concluded that the laboratory-rearing conditions used in this study provided sufficient food, and the only effect evaluated would be that of the three different temperatures. Since the developmental time for each stage is longer than the rearing period, it is important to conduct experiments with a large number of individuals to obtain accurate growth rate results. The specific growth rates of E. bungii and M. pacifica increased with increasing temperature. In contrast, N. plumchrus showed the highest growth rate under moderate water temperature conditions. In terms of weight units (dry, carbon, and nitrogen), the carbon weight-specific growth rates were higher than those of the other two units, a common characteristic of the three species. This reflected lipid accumulation during the late copepodite stages. The interspecies differences in growth rate responses to water temperature reflect species-specific differences in temperature tolerance or the optimum temperature for each species. As E. bungii and M. pacifica reproduce near the surface layer through income breeding, their temperature tolerance or optimum temperature is expected to be high. However, because the reproduction of N. plumchrus occurs in the cold deep layer by using capital breeding, its temperature tolerance and optimum temperature would be lower than those of the former two species.
  • East-west differences of the microplankton community along the 47°N transect in the subarctic Pacific during the summer of 2021
    Kosuke Egashira; Yu-Sin Huang; Kohei Matsuno; Atsushi Yamaguchi
    Bulletin of Fisheries Sciences, Hokkaido University, 74, 1, 23, 33, 2024年08月
    英語, 研究論文(大学,研究機関等紀要)
  • Size spectra of phytoplankton and zooplankton in the western North Pacific during May : A comparison between subarctic and transitional domains
    Li Wang; Xufa Ma; Dongwoo Kim; Kohei Matsuno; Atsushi Yamaguchi
    Bulletin of Fisheries Sciences, Hokkaido University, 74, 1, 13, 22, 2024年08月
    英語, 研究論文(大学,研究機関等紀要)
  • Zooplankton communities at the sea surface of the eastern Indian sector of the Southern Ocean during the austral summer of 2018/2019
    Fokje L. Schaafsma; Kohei Matsuno; Ryan Driscoll; Hiroko Sasaki; Marin van Regteren; Sara Driscoll; Ryuichi Matsukura; Rikuto Sugioka; Ippei Urabe; Hiroto Murase; Jan Andries van Franeker
    Progress in Oceanography, 226, 103303, 103303, Elsevier BV, 2024年08月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Characteristics of late summer Arctic brash sea ice and its melting effect on the surface-water biogeochemistry of the Chukchi Shelf and Canada Basin
    Ryota Akino; Daiki Nomura; Reishi Sahashi; Manami Tozawa; Mariko Hatta; Kohei Matsuno; Wakana Endo; Takuhei Shiozaki; Tatsuya Kawakami; Masato Ito; Akihiko Murata; Amane Fujiwara
    Elem Sci Anth, 12, 1, University of California Press, 2024年05月27日, [査読有り]
    英語, 研究論文(学術雑誌), To understand the impact of the melting of late summer Arctic brash ice on the surface waters of the Chukchi Sea, we collected sea-ice samples during 2021. Floating sea ice was collected by a wire mesh pallet cage from the side of the R/V Mirai. We measured physical and biogeochemical parameters such as salinity, oxygen stable isotopic ratios, turbidity, and concentrations of chlorophyll-a and nutrients. The samples of brash ice were multiyear ice based on satellite back-trajectory analysis. Comparison of nutrient concentrations in brash ice with those of seawater samples from the temperature minimum layer similar to the water in the sea ice originated suggested that the characteristics of the brash ice were greatly affected by biogeochemical processes such as remineralization. The extremely high turbidity and concentrations of chlorophyll-a observed in the brown/green ice samples reflected the impact of sediment as well as the influence of biological activities. The N:P ratios were less than 1 because of the high phosphate concentrations, even though the ammonium concentrations were high. We hypothesized that this low N:P ratio reflected the combined effects of the accumulation of nutrients due to remineralization in the biofilm and differences of remineralization rate and adsorption features of nitrogen and phosphorus. Based on the high nitrate and ammonium concentrations in the sea-ice samples, we postulated a marked impact of sea-ice meltwater on the nitrogen cycle in the nitrate-depleted surface waters of the Chukchi Sea during late summer. We estimated that meltwater nitrogen could support 0.3%–2.6% of primary production in the northern Chukchi Sea. Our results suggest that high-turbidity ice will play an important role as a source of nutrients to the ocean during melting of sea ice, and understanding its distribution, amount, and geochemical characteristics is vital.
  • Sediment trap samples reveal regional differences in the population structure of Calanus hyperboreus from the Arctic Ocean
    Koki Tokuhiro; Kohei Matsuno; Jonaotaro Onodera; Makoto Sampei; Amane Fujiwara; Naomi Harada; Barbara Niehoff; Eva-Maria Nöthig; Atsushi Yamaguchi
    Journal of Plankton Research, 46, 2, 183, 193, Oxford University Press (OUP), 2024年01月22日, [査読有り], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌), Abstract

    Calanus hyperboreus is one of the dominant copepod species in the Arctic zooplankton communities. The impact of climate change varies among regions within the Arctic, implying that C. hyperboreus populations may be differently affected at different locations, but knowledge on seasonal population dynamics in relation to biogeography is scarce. To fill this gap, we counted C. hyperboreus in samples from sediment traps that were moored from 2009 to 2014 in three regions of the Arctic Ocean (eastern Fram Strait, northern Chukchi Sea and MacKenzie Trough). The C. hyperboreus flux increased between April and May in all regions, likely associated with the ascent from overwintering depth to the surface. In the descent period, high fluxes were observed between July and September in the Fram Strait, between September and November in the northern Chukchi Sea, and between August and October in the MacKenzie Trough, suggesting that the timing of descent varied among the regions characterized by differences in light regime, phytoplankton development and water temperature. The copepodite stage composition in the eastern Fram Strait and the MacKenzie Trough varied with season, suggesting successful local reproduction while it was uniform in the northern Chukchi Sea, possibly because the population is fueled by advection.
  • Multidisciplinary research for sea ice in Saroma-ko Lagoon, Hokkaido, Japan 2023(2023年北海道サロマ湖における学際的海氷研究について)
    Daiki NOMURA; Ryota AKINO; Matthew CORKILL; Keizo HIRANO; Akihide KASAI; Seiji KATAKURA; Yusuke KAWAGUCHI; Tatsuya KAWAKAMI; Riri KIMURA; Delphine LANNUZEL; Ryosuke MAKABE; Mirai MATSUURA; Kohei MATSUNO; Klaus MEINERS; Keizo NAGASAKI; Yuichi NOSAKA; Nana SAMORI; Shinnosuke SAKAYA; Eun Yae SON; Ryotaro SUGA; Yumi SUNAKAWA; Keigo D. TAKAHASHI; Masaharu TAKAHASHI; Yuka TAKEDA; Takenobu TOYOTA; Manami TOZAWA; Pat WONGPAN; Hiroshi YOSHIDA; Kazuhiro YOSHIDA; Masaki YOSHIMURA
    Bulletin of Glaciological Research, 42, 19, 37, Japanese Society of Snow and Ice, 2024年, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal variation in microplankton communities in Suttsu, Hokkaido, northern Japan, from 2020 to 2022
    Kyosei Morimoto; Yusuke Hamao; Tomoyasu Yamazaki; Shoko Tatamisashi; Masahide Wakita; Kohei Matsuno
    Regional Studies in Marine Science, 69, 103322, 103322, Elsevier BV, 2024年01月, [査読有り], [最終著者]
    英語, 研究論文(学術雑誌)
  • Vertical changes in zooplankton abundance, biomass, and community structure at seven stations down to 3000 m in neighboring waters of Japan during the summer: Insights from ZooScan imaging analysis
    Kunito Yamamae; Yasuhide Nakamura; Kohei Matsuno; Atsushi Yamaguchi
    Progress in Oceanography, 219, 103155, 103155, Elsevier BV, 2023年12月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Zooplankton size composition and production just after drastic ice coverage changes in the northern Bering Sea assessed via ZooScan
    Shino Kumagai; Kohei Matsuno; Atsushi Yamaguchi
    Frontiers in Marine Science, 10, Frontiers Media SA, 2023年11月29日, [査読有り]
    英語, 研究論文(学術雑誌), Drastic environmental changes were noted in the northern Bering Sea in 2018. A reduction in sea ice affected several trophic levels within the ecosystem; this resulted in delayed phytoplankton blooms, the northward shifting of fish stocks, and a decrease in the number of seabirds. Changes in the community composition of zooplankton were reported in 2022, but changes in zooplankton interactions and production have not been reported to date. Therefore, this study examined predator-prey interaction, secondary production, and prey availability for fish to understand the effect of early sea ice melt. Zooplankton size data were estimated from the size spectra obtained using ZooScan based on samples collected in 2017 and 2018. A cluster analysis based on biovolume showed that the zooplankton community could be divided into three groups (Y2017N, Y2017S, Y2018). Y2017N, characterized by low abundance, biomass, and production, Y2017S, characterized by high biovolume and production, which contributed with Calanus spp., and Y2018, characterized by low biovolume but high production, contributed with small copepods, and Bivalvia. In 2017, the highest biovolume group was observed south of St. Lawrence Island, and it was dominated by Calanus spp. and Chaetognatha. Normalized size spectra of this group showed the highest secondary production with present predator-prey interactions, suggesting that the area provides high prey availability for fish larvae and juveniles. In contrast, small copepods and bivalve larvae were dominant in this area in 2018, which contain less carbons and energy, suggesting the prevalence of low-nutrient foods in this year in relation to early sea ice melt.
  • Responses of diatom assemblages and life cycle to sea ice variation in the eastern Indian sector of the Southern Ocean during austral summer 2018/2019
    Kohei Matsuno; Kohei Sumiya; Manami Tozawa; Daiki Nomura; Hiroko Sasaki; Atsushi Yamaguchi; Hiroto Murase
    Progress in Oceanography, 218, 103117, 103117, Elsevier BV, 2023年11月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • OBSERVATION OF FIN WHALE (BALAENOPTERA PHYSALUS) FEEDING BEHAVIOR IN THE AUSTRAL SUMMER SOUTHERN HEMISPHERE MID-LATITUDES
    Katsumata Taiki; Isoda Tatsuya; Matsuno Kohei; Murase Hiroto; Matsuoka Koji
    鯨類資源研究, 4, 34, 39, 鯨類資源研究刊行会, 2023年10月11日
    英語, In the Southern Hemisphere, fin whales (Balaenoptera physalus) feed mainly in the latitudinal range between 50°S and 60°S during the austral summer. In February 2021, five fin whales were sighted about 1,000 km south of the Cape of Good Hope, South Africa at position 43°49′S, 19°12′E. Feeding behavior was evident as the whales were lunging laterally into surrounding red patches with their mouth open. Examination of sampled red patches revealed that the fin whales were feeding on either Calanus australis or C. agulhensis. This is the first report of fin whales preying on Calanus spp. in this sea area and time of the year.
  • Geographic variation in population structure and grazing features of Calanus glacialis/marshallae in the Pacific Arctic Ocean
    Minami Ishihara; Kohei Matsuno; Koki Tokuhiro; Yasuhiro Ando; Kazutoshi Sato; Atsushi Yamaguchi
    Frontiers in Marine Science, 10, Frontiers Media SA, 2023年09月20日, [査読有り]
    英語, 研究論文(学術雑誌), Calanus glacialis/marshallae is a dominant zooplankton species in the Pacific Arctic Ocean that is widely distributed in shelf areas, and it plays a vital role in connecting primary production to higher trophic levels. Its phenology is well adapted to hydrography, but there is little available information about regional and diel changes in population structure and grazing features. In this study, we investigated C. glacialis/marshallae during autumn 2019 in the Eastern and Northeastern Chukchi and Canadian basins to reveal geographic and diel variations in population structure, body size, grazing activity, and fatty acid composition. The abundance of C. glacialis/marshallae was found to be high on the slopes and low on the shelves. Body size (prosome length) was well described by the Bělehrádek equation combined with in-situ temperature throughout the sampling region. Cluster analyses based on hydrographic parameters were divided into four regions: southern shelf, northern shelf, slope, and basin. The southern shelf was dominated by copepodite stage five (C5) transported from the Bering Sea by Pacific waters. C4 and C5 were dominant on the northern shelf, suggesting that they grew slower than those on the southern shelf, and the populations also exhibited higher concentrations of fatty acids originating from dinoflagellates than those originating from the pan-Arctic Ocean, indicating low productivity in the region. The population on the slope had the highest abundance, C4 was dominant, and large amounts of diatom-derived eicosapentaenoic acid (EPA). These features are attributed to the upwelling of populations and nutrients that support diatom growth. In the basin, the early copepodite stages of composition were distinctly higher than those recorded in previous studies, because larger amounts of organisms flow into the region, resulting in more extended reproduction periods. In the basin, small and large forms of C5 were simultaneously found, and the small form exhibited a diel grazing activity pattern, but the large forms did not. These findings suggest their well adaptation in changing of the Pacific Arctic Ocean.
  • Interannual and spatial variation in small zooplankton off Vincennes Bay, East Antarctica
    Aiko Tachibana; Yuri Ohkubo; Kohei Matsuno; Keigo D. Takahashi; Ryosuke Makabe; Masato Moteki
    Polar Biology, Springer Science and Business Media LLC, 2023年07月18日, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal changes in taxonomic, size composition, and Normalised Biomass Size Spectra (NBSS) of mesozooplankton communities in the Funka Bay, southwestern Hokkaido: Insights from ZooScan analysis
    Takumi Teraoka; Kanako Amei; Yutaka Fukai; Kohei Matsuno; Hiroji Onishi; Atsushi Ooki; Tetsuya Takatsu; Atsushi Yamaguchi
    Plankton and Benthos Research, 17, 4, 369, 382, The Plankton Society of Japan/The Japanese Association of Benthology, 2022年11月30日, [査読有り]
    英語, 研究論文(学術雑誌)
  • Meltwater Discharge From Marine‐Terminating Glaciers Drives Biogeochemical Conditions in a Greenlandic Fjord
    Naoya Kanna; Shin Sugiyama; Takuto Ando; Yefan Wang; Yuta Sakuragi; Toya Hazumi; Kohei Matsuno; Atsushi Yamaguchi; Jun Nishioka; Youhei Yamashita
    Global Biogeochemical Cycles, 36, 11, American Geophysical Union (AGU), 2022年11月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Photophysiological response of diatoms in surface sediments to light exposure: A laboratory experiment on a diatom community in sediments from the Chukchi Sea
    Yuri Fukai; Kohei Matsuno; Amane Fujiwara; Koji Suzuki
    Frontiers in Marine Science, 9, Frontiers Media {SA}, 2022年09月15日, [査読有り], [国際誌]
    英語, 研究論文(学術雑誌), Diatoms form dense blooms in the Pacific Arctic region from spring to summer, supporting the unique benthic-pelagic coupling ecosystems. Although the Arctic has a severe light-limited season from autumn to winter, diatoms can proliferate in spring when sufficient light becomes available for photosynthesis. One of the crucial strategies for diatoms to survive in unfavorable growing conditions is to form resting stages. Because of enhanced primary and export production in the Pacific Arctic shelves, many viable diatom resting stages can be detected in the surface sediments. However, little is known about the photophysiological response of viable diatom cells, including resting stages, in sediments to light availability. We conducted a laboratory experiment investigating the photophysiological capabilities of the diatom cells containing resting stages using surface sediments from the Chukchi Sea shelf. As a result, diatoms grew dramatically after light exposure, and Chaetoceros socialis complex highly contributed to the enhanced diatom abundance. Their photophysiological changes were also evident from the maximum quantum efficiency (Fv/Fm) of photochemistry in photosystem II, 13C-based photosynthetic-energy (PE) parameters, diadinoxanthin (DD)-diatoxanthin (DT) pool size, and the de-epoxidation state (DES) of DD. Even after the excess light exposure suppressed the photosynthetic activity in the microalgal cells, the diatoms recovered quickly, indicating the high photophysiological plasticity to dynamic light changes. Therefore, our results suggest that diatoms in surface sediments have a high seeding potential for blooms in the Pacific Arctic shelf region.
  • Seasonal, regional, and diel changes in the abundance of five large, dominant copepods in the western subarctic Pacific : Insights from Continuous Plankton Recorder surveys
    Fukai, Yutaka; Chiba, Sanae; Batten, Sonia; Sasaki, Yuka; Matsuno, Kohei; Richardson; Anthony J; Yamaguchi, Atsushi
    Bulletin of Fisheries Sciences, Hokkaido University, 72, 2, 17, 26, 2022年08月22日, [国際共著]
    英語, 研究論文(大学,研究機関等紀要)
  • Vertical distribution, standing stocks, and taxonomic accounts of the entire plankton community, and the estimation of vertical material flux via faecal pellets in the southern Okhotsk Sea
    Daiki Kojima; Yusuke Hamao; Kanako Amei; Yutaka Fukai; Kohei Matsuno; Yoko Mitani; Atsushi Yamaguchi
    Deep Sea Research Part I: Oceanographic Research Papers, 185, 103771, 103771, Elsevier BV, 2022年07月, [査読有り], [国際誌]
    英語, 研究論文(学術雑誌)
  • Effects of Early Sea-Ice Reduction on Zooplankton and Copepod Population Structure in the Northern Bering Sea During the Summers of 2017 and 2018
    Fumihiko Kimura; Kohei Matsuno; Yoshiyuki Abe; Atsushi Yamaguchi
    Frontiers in Marine Science, 9, Frontiers Media SA, 2022年02月22日, [査読有り], [責任著者], [国際誌]
    英語, 研究論文(学術雑誌), A remarkable early sea-ice reduction event was observed in the northern Bering Sea during 2018. In turn, this unusual hydrographic phenomenon affected several marine trophic levels, resulting in delayed phytoplankton blooms, phytoplankton community changes, and a northward shift of fish stocks. However, the response of the zooplankton community remains uncharacterized. Therefore, our study sought to investigate the zooplankton community shifts in the northern Bering Sea during the summers of 2017 and 2018 and evaluate the effects of early sea-ice melt events on the zooplankton community, population structure of large copepods, and copepod production. Five zooplankton communities were identified based on cluster analysis. Further, annual changes in the zooplankton community were identified in the Chirikov Basin. In 2017, the zooplankton community included abundant Pacific copepods transported by the Anadyr water. In 2018, however, the zooplankton community was dominated by small copepods and younger stages of large copepods (Calanus glacialis/marshallae and Metridia pacifica), which was likely caused by reproduction delays resulting from the early sea-ice reduction event. These environmental abnormalities increased copepod production; however, this higher zooplankton productivity did not efficiently reach the higher trophic levels. Taken together, our findings demonstrated that zooplankton community structure and production are highly sensitive to the environmental changes associated with early sea-ice reduction (e.g., warm temperatures and food availability)., 12074438
  • 秋季の太平洋側北極海におけるLimacina helicina幼生の鉛直分布
    佐藤 直; 徳弘航季; 松野孝平
    日本プランクトン学会報, 69, 1, 11, 17, 2022年02月, [査読有り], [最終著者, 責任著者], [国内誌]
    日本語, 研究論文(学術雑誌), 13430032
  • Spatial distribution of the protist community in the southern part of the Okhotsk Sea off Hokkaido during summer
    Yusuke Hamao; Kohei Matsuno; Yoko Mitani; Atsushi Yamaguchi
    Journal of Oceanography, 78, 2, 89, 101, Springer Science and Business Media LLC, 2022年01月27日, [査読有り], [国内誌]
    英語, 研究論文(学術雑誌), AbstractThe southern part of the Okhotsk Sea off Hokkaido has rich fishery resources supported by high primary production. The phytoplankton community has been described by several studies based on size-fractionated chlorophyll a concentration and primary production; however, the details of the species composition of nano- and micro-protist communities have not been well investigated. We evaluated the spatial distribution and relationship with hydrography of nano- and micro-protist communities in the southern region of the Okhotsk Sea off Hokkaido during the summer of 2019. Forty-two species of diatoms from 19 genera, dinoflagellates from 7 genera, tintinnid ciliates, oligotrich ciliates, and 1 genus of silicoflagellates were identified. Their spatial distribution showed distinct differences among the taxa. Cluster analysis based on the protist cell density identified six groups with geographically well-distinguished distributions. Diatom-dominant communities were distributed in the Cold Water Belt and Soya warm current along the coastal area of Hokkaido. Nanoflagellate-dominated communities were distributed in the offshore area. Some harmful species of diatoms (Pseudonitzschia pseudodelicatissima) and dinoflagellates (Alexandrium spp.) were dominant in the Cold Water Belt off Wakkanai. We suggest that the upwelling of cold water could increase the abundance of harmful species, with immanent negative impacts on marine ecosystems or fishery resources. In summary, the species composition and abundance of the summer protist community was strongly related to different water masses in the southern part of the Okhotsk Sea off Hokkaido., 32619277
  • Impact of Sea‐Ice Dynamics on the Spatial Distribution of Diatom Resting Stages in Sediments of the Pacific Arctic Region
    Yuri Fukai; Kohei Matsuno; Amane Fujiwara; Koji Suzuki; Mindy L. Richlen; Evangeline Fachon; Donald M. Anderson
    Journal of Geophysical Research: Oceans, 126, 7, American Geophysical Union (AGU), 2021年07月, [査読有り], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌)
  • Predation of Juvenile Japanese Sea Cucumber Apostichopus japonicus by Kelp Crab Pugettia ferox
    Nobuharu Inaba; Takuma Matsumoto; Hiroshi Kawai; Yuji Anaguchi; Kohei Matsuno
    Frontiers in Marine Science, 8, Frontiers Media SA, 2021年06月22日, [査読有り], [最終著者], [国際誌]
    英語, 研究論文(学術雑誌), The predation of commercially important Japanese sea cucumber Apostichopus japonicus by the kelp crab Pugettia ferox, widely distributed in coastal northeast Asia, was examined in field sampling and laboratory experiments. The ossicles of A. japonicus were detected from the stomach contents of a natural population of P. ferox at the rate of 32.4% of 68 individuals collected within artificial intermediate sea cucumber reefs for releasing hatchery-produced juveniles in December 2018. In the following laboratory experiments, a high mortality rate (7.7 ± 2.4 individuals day–1) of juvenile A. japonicus (15.35 ± 2.47 mm) was observed despite the different sizes and sex of P. ferox tested. It was also confirmed that a maximum of five sea cucumbers was killed and cut into small pieces within the first 2 h. Smaller and younger P. ferox individuals (adolescent) between carapace widths of 14.2–17.8 mm actively decorated themselves using pieces of chopped sea cucumber after feeding. Attached pieces of sea cucumber were observed to be fully eaten within a week, suggesting a possible strategy by P. ferox of short-term food storage as well as mimicry. This study demonstrates considerable evidence that predation mortality by sufficiently mobile P. ferox on commercially important A. japonicus can be significant, causing high mortality at the early life stage in the natural environment, especially in areas releasing hatchery-produced juveniles. It is also worth noting that the utilization of freshly chopped sea cucumbers as decoration material and food storage is a unique and novel ecological trait of P. ferox.
  • An estimation of the quantitative impacts of copepod grazing on an under sea-ice spring phytoplankton bloom in western Baffin Bay, Canadian Arctic
    Makoto Sampei; Louis Fortier; Patrick Raimbault; Kohei Matsuno; Yoshiyuki Abe; Bernard Quéguiner; Augustin Lafond; Marcel Babin; Toru Hirawake
    Elementa: Science of the Anthropocene, 9, 1, 2021年06月11日, [査読有り], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌)
  • Rapidly changing glaciers, ocean and coastal environments, and their impact on human society in the Qaanaaq region, northwestern Greenland
    Shin Sugiyama; Naoya Kanna; Daiki Sakakibara; Takuto Ando; Izumi Asaji; Ken Kondo; Yefan Wang; Yoshiki Fujishi; Shungo Fukumoto; Evgeniy Podolskiy; Yasushi Fukamachi; Minori Takahashi; Sumito Matoba; Yoshinori Iizuka; Ralf Greve; Masato Furuya; Kazutaka Tateyama; Tatsuya Watanabe; Shintaro Yamasaki; Atsushi Yamaguchi; Bungo Nishizawa; Kohei Matsuno; Daiki Nomura; Yuta Sakuragi; Yoshimasa Matsumura; Yoshihiko Ohashi; Teruo Aoki; Masashi Niwano; Naotaka Hayashi; Masahiro Minowa; Guillaume Jouvet; Eef van Dongen; Andreas Bauder; Martin Funk; Anders Anker Bjørk; Toku Oshima
    Polar Science, 27, 100632, 100632, Elsevier BV, 2021年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal variability of the protist community and production in the southern Okhotsk Sea revealed by weekly monitoring
    Takuma Matsumoto; Kohei Matsuno; Seiji Katakura; Hiromi Kasai; Atsushi Yamaguchi
    Regional Studies in Marine Science, 43, 101683, 101683, Elsevier BV, 2021年03月, [査読有り], [国際誌]
    英語, 研究論文(学術雑誌), 12074438;13430033
  • Between-year comparison of interactions between environmental parameters and various plankton stocks in the northern Bering Sea during the summers of 2017 and 2018
    Atsushi Yamaguchi; Fumihiko Kimura; Yuri Fukai; Yoshiyuki Abe; Kohei Matsuno; Atsushi Ooki; Toru Hirawake
    Polar Science, 27, 100555, 100555, 2021年03月, [査読有り], [国際誌]
    英語, 研究論文(学術雑誌), 12074438
  • Seasonal changes in the zooplankton community and population structure in the northern Bering Sea from June to September, 2017
    Fumihiko Kimura; Yoshiyuki Abe; Kohei Matsuno; Russell R. Hopcroft; Atsushi Yamaguchi
    Deep Sea Research Part II: Topical Studies in Oceanography, 181-182, 104901, 104901, Elsevier BV, 2020年12月, [査読有り], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌)
  • Spatial changes in the summer diatom community of the northern Bering Sea in 2017 and 2018
    Yuri Fukai; Yoshiyuki Abe; Kohei Matsuno; Atsushi Yamaguchi
    Deep Sea Research Part II: Topical Studies in Oceanography, 181-182, 104903, 104903, Elsevier BV, 2020年12月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Abundance, horizontal and vertical distribution of epipelagic ctenophores and scyphomedusae in the northern Bering Sea in summer 2017 and 2018: Quantification by underwater video imaging analysis
    Marie Maekakuchi; Kohei Matsuno; Jun Yamamoto; Yoshiyuki Abe; Atsushi Yamaguchi
    Deep Sea Research Part II: Topical Studies in Oceanography, 181-182, 104818, 104818, Elsevier BV, 2020年12月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Distribution of harmful algal growth-limiting bacteria on artificially introduced Ulva and natural macroalgal beds
    Inaba, N; I. Kodama; S. Nagai; T. Shiraishi; K. Matsuno; A. Yamaguchi; I. Imai
    Applied Science, 10, 16, 5658, 5658, MDPI AG, 2020年08月, [査読有り]
    英語, 研究論文(学術雑誌), The intensity and frequency of harmful algal blooms (HABs) have increased, posing a threat to human seafood resources due to massive kills of cultured fish and toxin contamination of bivalves. In recent years, bacteria that inhibit the growth of HAB species were found to be densely populated on the biofilms of some macroalgal species, indicating the possible biological control of HABs by the artificial introduction of macroalgal beds. In this study, an artificially created Ulva pertusa bed using mobile floating cages and a natural macroalgal bed were studied to elucidate the distribution of algal growth-limiting bacteria (GLB). The density of GLB affecting fish-killing raphidophyte Chattonella antiqua, and two harmful dinoflagellates, were detected between 106 and 107 CFU g−1 wet weight on the biofilm of artificially introduced U. pertusa and 10 to 102 CFU mL−1 from adjacent seawater; however, GLB found from natural macroalgal species targeted all tested HAB species (five species), ranging between 105 and 106 CFU g−1 wet weight in density. These findings provide new ecological insights of GLB at macroalgal beds, and concurrently demonstrate the possible biological control of HABs by artificially introduced Ulva beds.
  • Mass Occurrence of Pacific Copepods in the Southern Chukchi Sea During Summer: Implications of the High-Temperature Bering Summer Water
    Jee-Hoon Kim; Kyoung-Ho Cho; Hyoung Sul La; Eun Jung Choy; Kohei Matsuno; Sung-Ho Kang; Won Kim; Eun Jin Yang
    Frontiers in Marine Science, 7, Frontiers Media SA, 2020年07月22日, [査読有り], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌)
  • Review of spatial and inter-annual changes in the zooplankton community structure in the western Arctic Ocean during summers of 2008–2017
    Abe, Y; K. Matsuno; A. Fujiwara; A. Yamaguchi
    Progress in Oceanography, 186, 102391, 102391, 2020年06月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Regional comparison of seasonal changes on copepod community structure in the Arctic Ocean
    Koki Tokuhiro; Yoshiyuki Abe; Jonaotaro Onodera; Makoto Sampei; Amane Fujiwara; Naomi Harada; Kohei Matsuno; Eva-Maria Nöthig; Atsushi Yamaguchi
    Polar Science, 24, 100509, 100509, 2020年06月, [査読有り], [国際共著]
    英語, 研究論文(学術雑誌)
  • Impacts of meltwater discharge from marine-terminating glaciers on the protist community in Inglefield Bredning, northwestern Greenland
    K Matsuno; N Kanna; S Sugiyama; A Yamaguchi; EJ Yang
    Marine Ecology Progress Series, 642, 55, 65, Inter-Research Science Center, 2020年05月28日, [査読有り], [筆頭著者, 責任著者], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌), To evaluate the effects of meltwater discharge from marine-terminating glaciers on a fjord protist community in northwestern Greenland during summer, we investigated the distribution, abundance and biomass of the protist community and their relationships with hydrographic parameters. In the standing stock of protists, dinoflagellates (46.4%) and oligotrich ciliates (39.5%) were dominant throughout the study region. With respect to vertical distribution, oligotrich ciliates were abundant in the surface layer, mainly due to suitable food conditions (abundance of diatom and nanoflagellates). Near glaciers, relatively high chlorophyll a (chl a) concentrations were found in the subsurface layers associated with the low-temperature, high-turbidity and slightly high nutrient levels, indicating that the nutrient inputs from the upwelling glacial meltwater plume increased primary production. Large-sized Protoperidium spp. were found only at stations near glaciers where nutrients were abundant, and heterotrophic dinoflagellates showed strong relationships with nanoflagellates. These findings suggest that the upwelling associated with subglacial meltwater discharge can stimulate nanoflagellate production, resulting in increases in ciliate and heterotrophic dinoflagellate production., 12074438
  • Zooplankton community structure and dominant copepod population structure on the southern Kerguelen Plateau during summer 2016
    Kohei Matsuno; Jake R. Wallis; So Kawaguchi; Sophie Bestley; Kerrie M. Swadling
    Deep Sea Research Part II: Topical Studies in Oceanography, 174, 104788, 104788, Elsevier BV, 2020年04月, [査読有り], [筆頭著者, 責任著者], [国際共著], [国際誌]
    英語, 研究論文(学術雑誌), 11360089
  • Different effects of mating group size as male and as female on sex allocation in a simultaneous hermaphrodite.
    Tamechika, M.M.; K. Matsuno; S. Wada; Y. Yusa
    Ecology and Evolution, 10, 5, 2492, 2498, Wiley, 2020年02月, [査読有り]
    英語, 研究論文(学術雑誌)
  • The community composition of diatom resting stages in sediments of the northern Bering Sea in 2017 and 2018: the relationship to the interannual changes in the extent of the sea ice
    Fukai, Y; K. Matsuno; A. Fujiwara; A. Yamaguchi
    Polar Biology, 42, 1915, 1922, 2019年10月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Surface zooplankton size and taxonomic composition in Bowdoin Fjord, north-western Greenland: A comparison of ZooScan, OPC and microscopic analyses
    Naito⁠, A; Y. Abe; K. Matsuno; B. Nishizawa; N. Kanna; S. Sugiyama; A. Yamaguchi
    Polar Science, 19, 120, 129, 2019年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Yearly comparison of the planktonic chaetognath community in the Chukchi Sea in the summers of 1991 and 2007
    Amano, K; Y. Abe; K. Matsuno; A. Yamaguchi
    Polar Science, 19, 112, 119, 2019年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal phenology of four dominant copepods in the Pacific sector of the Arctic Ocean: Insights from statistical analyses of sediment trap data
    Tokuhiro, K; Y. Abe; K. Matsuno; J. Onodera; A. Fujiwara; N. Harada; T. Hirawake; A. Yamaguchi
    Polar Science, 19, 94, 111, 2019年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • 太平洋側北極海における海氷衰退による プランクトン群集への影響
    松野孝平
    海の研究, 27, 6, 217, 230, 2018年12月, [査読有り], [招待有り], [筆頭著者, 責任著者]
    日本語, 研究論文(学術雑誌)
  • Distribution of viable resting stage cells of diatoms in sediments and water columns of the Chukchi Sea, Arctic Ocean
    Tsukazaki, C; K.-I. Ishii; K. Matsuno; A. Yamaguchi; I. Imai
    Phycologia, 57, 440, 452, 2018年06月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Changes in phytoplankton community structure during wind-induced fall bloom on the central Chukchi shelf
    Amane Fujiwara; Shigeto Nishino; Kohei Matsuno; Jonaotaro Onodera; Yusuke Kawaguchi; Toru Hirawake; Koji Suzuki; Jun Inoue; Takashi Kikuchi
    Polar Biology, 41, 6, 1279, 1295, Springer Verlag, 2018年06月01日, [査読有り]
    英語, 研究論文(学術雑誌)
  • First record of the larvae of tanner crab Chionoecetes bairdi in the Chukchi Sea: A future northward expansion in the Arctic?
    Jose M. Landeira; Kohei Matsuno; Yuji Tanaka; Atsushi Yamaguchi
    Polar Science, 16, 86, 89, 2018年06月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal variability of zooplankton size spectra at Mombetsu Harbour in the southern Okhotsk Sea during 2011: An analysis using an optical plankton counter
    Hikaru Hikichi; Daichi Arima; Yoshiyuki Abe; Kohei Matsuno; Soshi Hamaoka; Seiji Katakura; Hiromi Kasai; Atsushi Yamaguchi
    Regional Studies in Marine Science, 20, 34, 44, Elsevier B.V., 2018年04月01日, [査読有り]
    英語, 研究論文(学術雑誌)
  • Evidence of increased toxic Alexandrium tamarense dinoflagellate blooms in the eastern Bering Sea in the summers of 2004 and 2005
    Masafumi Natsuike; Rui Saito; Amane Fujiwara; Kohei Matsuno; Atsushi Yamaguchi; Naonobu Shiga; Toru Hirawake; Takashi Kikuchi; Shigeto Nishino; Ichiro Imai
    PLOS ONE, 12, 11, e0188565, 2017年11月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Abundance, development stage, and size of decapod larvae through the Bering and Chukchi Seas during summer
    Jose M. Landeira; Kohei Matsuno; Atsushi Yamaguchi; Toru Hirawake; Takashi Kikuchi
    POLAR BIOLOGY, 40, 9, 1805, 1819, 2017年09月, [査読有り]
    英語, 研究論文(学術雑誌)
  • The physiological adaptations and toxin profiles of the toxic Alexandrium fundyense on the eastern Bering Sea and Chukchi Sea shelves
    Masafumi Natsuike; Hiroshi Oikawa; Kohei Matsuno; Atsushi Yamaguchi; Ichiro Imai
    HARMFUL ALGAE, 63, 13, 22, 2017年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Length-weight Relationships and Chemical Composition of the Dominant Mesozooplankton Taxa/species in the Subarctic Pacific, with Special Reference to the Effect of Lipid Accumulation in Copepoda
    Asami Nakamura; Kohei Matsuno; Yoshiyuki Abe; Hiroshi Shimada; Atsushi Yamaguchi
    ZOOLOGICAL STUDIES, 56, 13, 2017年, [査読有り]
    英語, 研究論文(学術雑誌)
  • Latitudinal variations in the abundance, biomass, taxonomic composition and estimated production of epipelagic mesozooplankton along the 155˚E longitude in the western North Pacific during spring.
    Yamaguchi, A; K. Matsuno; Y. Abe; D. Arima; I. Imai
    Progress in Oceanography, 150, 13, 19, 2017年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal distribution of short-tailed shearwaters and their prey in the Bering and Chukchi seas
    Bungo Nishizawa; Kohei Matsuno; Elizabeth A. Labunski; Kathy J. Kuletz; Atsushi Yamaguchi; Yutaka Watanuki
    BIOGEOSCIENCES, 14, 1, 203, 214, 2017年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Possible spreading of toxic Alexandrium tamarense blooms on the Chukchi Sea shelf with the inflow of Pacific summer water due to climatic warming
    Masafumi Natsuike; Kohei Matsuno; Toru Hirawake; Atsushi Yamaguchi; Shigeto Nishino; Ichiro Imai
    HARMFUL ALGAE, 61, 80, 86, 2017年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Regional patterns and controlling factors on summer population structure of Calanus glacialis in the western Arctic Ocean
    Kohei Matsuno; Yoshiyuki Abe; Atsushi Yamaguchi; Takashi Kikuchi
    POLAR SCIENCE, 10, 4, 503, 510, 2016年12月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Comparative ecology of three dominant pelagic chaetognaths (Eukrohnia hamata, Parasagitta elegans, Pseudosagitta scrippsae) in the Oyashio region during the spring phytoplankton bloom
    Yoshiyuki Abe; Hiroomi Miyamoto; Rui Saito; Kohei Matsuno; Atsushi Yamaguchi; Ichiro Imai
    REGIONAL STUDIES IN MARINE SCIENCE, 8, 122, 132, 2016年11月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Spatial and geographical changes in the mesozooplankton community in the Bering and Chukchi Seas during the summers of 2007 and 2008
    Kohei Matsuno; Jose M. Landeira Sanchez; Atsushi Yamaguchi; Toru Hirawake; Takashi Kikuchi
    POLAR SCIENCE, 10, 3, 335, 345, 2016年09月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Distribution of Arctic and Pacific copepods and their habitat in the northern Bering and Chukchi seas
    Hiroko Sasaki; Kohei Matsuno; Amane Fujiwara; Misaki Onuka; Atsushi Yamaguchi; Hiromichi Ueno; Yutaka Watanuki; Takashi Kikuchi
    BIOGEOSCIENCES, 13, 15, 4555, 4567, 2016年08月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Diets and body condition of polar cod (Boreogadus saida) in the northern Bering Sea and Chukchi Sea
    Tsubasa Nakano; Kohei Matsuno; Bungo Nishizawa; Yuka Iwahara; Yoko Mitani; Jun Yamamoto; Yasunori Sakurai; Yutaka Watanuki
    POLAR BIOLOGY, 39, 6, 1081, 1086, 2016年06月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Two new living Entactinaria (Radiolaria) species from the Arctic province: Joergensenium arcticum n. sp and Joergensenium clevei n. sp.
    Takahito Ikenoue; Kjell R. Bjorklund; Paulian Dumitrica; Anders K. Krabberod; Katsunori Kimoto; Kohei Matsuno; Naomi Harada
    MARINE MICROPALEONTOLOGY, 124, 75, 94, 2016年04月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Short-term changes in abundance and population structure of dominant pelagic amphipod species in the Oyashio region during the spring phytoplankton bloom
    Yoshiyuki Abe; Yuichiro Yamada; Rui Saito; Kohei Matsuno; Atsushi Yamaguchi; Kosei Komatsu; Ichiro Imai
    REGIONAL STUDIES IN MARINE SCIENCE, 3, 154, 162, 2016年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Short-term changes in a microplankton community in the Chukchi Sea during autumn: consequences of a strong wind event
    Naoya Yokoi; Kohei Matsuno; Mutsuo Ichinomiya; Atsushi Yamaguchi; Shigeto Nishino; Jonaotaro Onodera; Jun Inoue; Takashi Kikuchi
    BIOGEOSCIENCES, 13, 4, 913, 923, 2016年, [査読有り]
    英語, 研究論文(学術雑誌)
  • SEASONAL AND INTER-SPECIES COMPARISON OF ASYMMETRY IN THE GENITAL SYSTEM OF SOME SPECIES OF THE OCEANIC COPEPOD GENUS METRIDIA (COPEPODA, CALANOIDA)
    Daichi Arima; Kohei Matsuno; Atsushi Yamaguchi; Takahiro Nobetsu; Ichiro Imai
    CRUSTACEANA, 88, 12-14, 1307, 1321, 2015年12月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Long-term changes in summer zooplankton communities of the western Chukchi Sea, 1945–2012
    Ershova, E.A; R.R. Hopcroft; K.N. Kosobokova; K. Matsuno; R.J. Nelson; A. Yamaguchi; L.B. Eisner
    Oceanography, 28, 3, 100, 115, 2015年11月, [査読有り], [国際共著]
    英語, 研究論文(学術雑誌)
  • Seasonal changes in the population structure of dominant planktonic copepods collected using a sediment trap moored in the western Arctic Ocean
    Kohei Matsuno; Atsushi Yamaguchi; Amane Fujiwara; Jonaotaro Onodera; Eiji Watanabe; Naomi Harada; Takashi Kikuchi
    JOURNAL OF NATURAL HISTORY, 49, 45-48, 2711, 2726, 2015年10月, [査読有り], [筆頭著者, 責任著者], [国際誌]
    英語, 研究論文(学術雑誌)
  • Enhanced role of eddies in the Arctic marine biological pump (vol 5, 3950, 2014)
    Eiji Watanabe; Jonaotaro Onodera; Naomi Harada; Makio C. Honda; Katsunori Kimoto; Takashi Kikuchi; Shigeto Nishino; Kohei Matsuno; Atsushi Yamaguchi; Akio Ishida; Michio J. Kishi
    NATURE COMMUNICATIONS, 6, 8441, 2015年09月, [査読有り]
    英語
  • Short-term changes in the mesozooplankton community and copepod gut pigment in the Chukchi Sea in autumn: reflections of a strong wind event
    K. Matsuno; A. Yamaguchi; S. Nishino; J. Inoue; T. Kikuchi
    BIOGEOSCIENCES, 12, 13, 4005, 4015, 2015年07月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Reproductive success of Pacific copepods in the Arctic Ocean and the possibility of changes in the Arctic ecosystem
    Kohei Matsuno; Atsushi Yamaguchi; Toru Hirawake; Shigeto Nishino; Jun Inoue; Takashi Kikuchi
    POLAR BIOLOGY, 38, 7, 1075, 1079, 2015年07月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Spatial and temporal changes in zooplankton abundance, biovolume, and size spectra in the neighboring waters of Japan: analyses using an optical plankton counter
    Kaede Sato; Kohei Matsuno; Daichi Arima; Yoshiyuki Abe; Atsushi Yamaguchi
    ZOOLOGICAL STUDIES, 54, 18, 2015年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Spatial changes in the vertical distribution of calanoid copepods down to great depths in the North Pacific
    Atsushi Yamaguchi; Kohei Matsuno; Tomoe Homma
    ZOOLOGICAL STUDIES, 54, 13, 2015年01月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal changes in zooplankton abundance, biomass, size structure and dominant copepods in the Oyashio region analysed by an optical plankton counter
    Atsushi Yamaguchi; Kohei Matsuno; Yoshiyuki Abe; Daichi Arima; Kohei Ohgi
    DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, 91, 115, 124, 2014年09月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Horizontal distribution of microprotist community structure in the western Arctic Ocean during late summer and early fall of 2010
    Kohei Matsuno; Mutsuo Ichinomiya; Atsushi Yamaguchi; Ichiro Imai; Takashi Kikuchi
    POLAR BIOLOGY, 37, 8, 1185, 1195, 2014年08月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Enhanced role of eddies in the Arctic marine biological pump
    Eiji Watanabe; Jonaotaro Onodera; Naomi Harada; Makio C. Honda; Katsunori Kimoto; Takashi Kikuchi; Shigeto Nishino; Kohei Matsuno; Atsushi Yamaguchi; Akio Ishida; Michio J. Kishi
    NATURE COMMUNICATIONS, 5, doi: 10.1038/ncomms4950, 2014年05月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Seasonal changes in mesozooplankton swimmers collected by sediment trap moored at a single station on the Northwind Abyssal Plain in the western Arctic Ocean
    Kohei Matsuno; Atsushi Yamaguchi; Amane Fujiwara; Jonaotaro Onodera; Eiji Watanabe; Ichiro Imai; Sanae Chiba; Naomi Harada; Takashi Kikuchi
    JOURNAL OF PLANKTON RESEARCH, 36, 2, 490, 502, 2014年03月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • SEASONAL CHANGES IN BODY SIZE AND OIL SAC VOLUME OF THREE PLANKTONIC COPEPODS, PARACALANUS PARVUS (CLAUS, 1863), PSEUDOCALANUS NEWMANI FROST, 1989 AND OITHONA SIMILIS CLAUS, 1866, IN A TEMPERATE EMBAYMENT: WHAT CONTROLS THEIR SEASONALITY?
    Daichi Arima; Atsushi Yamaguchi; Yoshiyuki Abe; Kohei Matsuno; Rui Saito; Hiroki Asami; Hiroshi Shimada; Ichiro Imai
    CRUSTACEANA, 87, 3, 364, 375, 2014年03月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Variation in assimilation efficiencies of dominant Neocalanus and Eucalanus copepods in the subarctic Pacific: Consequences for population structure models
    Yoshiyuki Abe; Masafumi Natsuike; Kohei Matsuno; Takeshi Terui; Atsushi Yamaguchi; Ichiro Imai
    JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY, 449, 321, 329, 2013年11月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Distribution of viable diatom resting stage cells in bottom sediments of the eastern Bering Sea shelf
    Chiko Tsukazaki; Ken-Ichiro Ishii; Rui Saito; Kohei Matsuno; Atsushi Yamaguchi; Ichiro Imai
    DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 94, 22, 30, 2013年10月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Interannual changes in the zooplankton community structure on the southeastern Bering Sea shelf during summers of 1994-2009
    Rie Ohashi; Atsushi Yamaguchi; Kohei Matsuno; Rui Saito; Nao Yamada; Anai Iijima; Naonobu Shiga; Ichiro Imai
    DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY, 94, 44, 56, 2013年10月, [査読有り]
    英語, 研究論文(学術雑誌)
  • East-west differences in population structure and vertical distribution of copepods along 47°N in the subarctic Pacific in June 2009
    Atsushi Yamaguchi; Tomoe Homma; Rui Saito; Kohei Matsuno; Hiromichi Ueno; Toru Hirawake; Ichiro Imai
    Plankton and Benthos Research, 8, 3, 116, 123, Plankton Society of Japan, 2013年08月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Abundance and distribution of toxic Alexarzdrium tamarense resting cysts in the sediments of the Chukchi Sea and the eastern Bering Sea
    Masafumi Natsuike; Satoshi Nagai; Kohei Matsuno; Rui Saito; Chiko Tsukazaki; Atsushi Yamaguchi; Ichiro Imai
    HARMFUL ALGAE, 27, 52, 59, 2013年07月, [査読有り]
    英語, 研究論文(学術雑誌)
  • LIFE HISTORY AND PRODUCTION OF PELAGIC MYSIDS AND DECAPODS IN THE OYASHIO REGION, JAPAN
    Kana Chikugo; Atsushi Yamaguchi; Kohei Matsuno; Rui Saito; Ichiro Imai
    CRUSTACEANA, 86, 4, 449, 474, 2013年04月, [査読有り]
    英語, 研究論文(学術雑誌)
  • Biomass size spectra of mesozooplankton in the Chukchi Sea during the summers of 1991/1992 and 2007/2008: an analysis using optical plankton counter data
    Kohei Matsuno; Atsushi Yamaguchi; Ichiro Imai
    ICES JOURNAL OF MARINE SCIENCE, 69, 7, 1205, 1217, 2012年09月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Horizontal distribution of calanoid copepods in the western Arctic Ocean during the summer of 2008
    Kohei Matsuno; Atsushi Yamaguchi; Koji Shimada; Ichiro Imai
    POLAR SCIENCE, 6, 1, 105, 119, 2012年04月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Interannual And Latitudinal Changes in Zooplankton Abundance, Biomass and Size Composition Along a Central North Pacific Transect During Summer: Analyses with an Optical Plankton Counter
    Jumpei Fukuda; Atsushi Yamaguchi; Kohei Matsuno; Ichiro Imai
    Plankton and Benthos Research, 7, 2, 64, 74, 2012年, [査読有り]
    英語, 研究論文(学術雑誌)
  • Year-to-year changes of the mesozooplankton community in the Chukchi Sea during summers of 1991, 1992 and 2007, 2008
    Kohei Matsuno; Atsushi Yamaguchi; Toru Hirawake; Ichiro Imai
    POLAR BIOLOGY, 34, 9, 1349, 1360, 2011年09月, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Abundance and biomass of mesozooplankton along north-south transects (165°E and 165°W) in summer in the North Pacific: An analysis with an optical plankton counter
    Kohei Matsuno; Atsushi Yamaguchi
    Plankton and Benthos Research, 5, 4, 123, 130, 2010年, [査読有り], [筆頭著者, 責任著者]
    英語, 研究論文(学術雑誌)
  • Causes of Under- or Overestimation of Zooplankton Biomass Using Optical Plankton Counter (OPC): Effect of Size and Taxa
    Kohei Matsuno; Hye Seon Kim; Atsushi Yamaguchi
    Plankton and Benthos Research, 4, 4, 154, 159, 2009年, [査読有り], [筆頭著者, 責任著者], [国内誌]
    英語, 研究論文(学術雑誌)
■ その他活動・業績
■ 書籍等出版物
  • プランクトンは海の語り部 ~変わりゆく極域~
    松野孝平
    海文堂出版, 2020年09月, [単著]
  • 水産科学・海洋環境科学実習
    山口 篤; 今井一郎; 平譯 享; 松野孝平
    海文堂出版, 2019年08月, [共著]
  • 海をまるごとサイエンス ~水産科学の世界へようこそ~
    松野孝平, 小さな生き物から地球を知る
    海文堂出版, 2018年08月, [分担執筆]
  • 低温環境の科学辞典
    松野孝平, 北極の動物プランクトン
    朝倉書店, 2016年07月, [分担執筆]
■ 主な担当授業
  • 海洋生物学特論Ⅱ, 2024年, 修士課程, 水産科学院
  • Introduction to Fisheries Sciences Ⅰ(水産科学汎論Ⅰ), 2024年, 修士課程, 水産科学院
  • 大学院共通授業科目(一般科目):自然科学・応用科学, 2024年, 修士課程, 大学院共通科目
  • 環境と人間, 2024年, 学士課程, 全学教育
  • 一般教育演習(フレッシュマンセミナー), 2024年, 学士課程, 全学教育
  • 海洋生物科学実験Ⅲ, 2024年, 学士課程, 水産学部
  • 水産科学英語Ⅰ, 2024年, 学士課程, 水産学部
  • 洋上実習Ⅰ, 2024年, 学士課程, 水産学部
  • プランクトン学, 2024年, 学士課程, 水産学部
  • 海洋生物科学Ⅱ, 2024年, 学士課程, 水産学部
■ 所属学協会
  • 日本地球惑星科学連合
  • Association for the Sciences of Limnology and Oceanography
  • 日本海洋学会
  • 日本プランクトン学会
  • 日本水産学会
■ 共同研究・競争的資金等の研究課題
  • 気候変動が海洋表層植物プランクトンへ与える影響:一般化非類似度モデルによる解明
    科学研究費助成事業
    2025年04月 - 2028年03月
    松野 孝平; 藤原 周; 脇田 昌英; 北島 聡
    日本学術振興会, 基盤研究(A), 北海道大学, 研究代表者, 25H01177
  • 歴史的試料を用いた海洋低次生態系構造に気候変動が与える影響に関する研究
    科学研究費助成事業
    2022年04月 - 2027年03月
    山口 篤; 松野 孝平
    日本学術振興会, 基盤研究(A), 北海道大学, 22H00374
  • 函館湾における植物プランクトン群集の季節変動とモデルによる予測
    先端的な学術研究
    2025年04月 - 2026年03月
    松野孝平
    公益財団法人 南北海道学術振興財団, 北海道大学, 研究代表者
  • 極域の海氷下および浅海底における珪藻類生産の実態解明
    科学研究費助成事業 基盤研究(B)
    2021年04月 - 2026年03月
    松野 孝平; 藤原 周; 安藤 卓人
    本研究は、海氷衰退が著しい北極海陸棚域において、海氷下と海底面での珪藻類による一次生産量と種組成を明らかにし、海氷分布と比較することで、海氷変動による珪藻類生産への影響を解明することを目的としている。令和3年度(2021年度)は、JAMSTEC海洋地球研究船みらいの北極航海(2021年8月28日~10月22日)に参加し、太平洋側北極海において海氷試料(4地点)、海水試料(45地点)および海底堆積物(11地点)を採取した。また、船上において、本研究課題の予算で購入したPAM(パルス変調蛍光光度計)を用いた光合成パラメーターの測定(175回)、およびviability染色キットによる生死判別試料の作成も行った。2021年度の太平洋側北極海は、例年よりも海氷が多く残っていたために、海氷のサンプリングができたことが大きな成果である。これにより、同一地点において、海氷、海表面の海水、亜表層クロロフィルa最大層の海水、海底直上10 mの海水、海底堆積物の直上水および海底堆積物を採取し、かつPAMによる光合成活性の測定と生死判別分析もできているため、本研究課題の核をなす結果が得られると期待できる。本研究に関連する研究成果としては、査読付き論文4報、学会での口頭及びポスター発表を6件行った。
    令和3年度において、最も重要な研究成果としては、太平洋側北極海の海底堆積物中の珪藻類の休眠期細胞の分布と組成は、海氷の融解時期や分布に大きく影響を受けていることを明らかにした点である。これにより、本研究課題で設定した仮説「海氷変動が珪藻類の休眠期細胞に影響を与えること」が実証された。この研究では、アイスアルジーの存在割合が、結氷期間が長い海域ほど高くなることも示している。この成果は、本研究で取り組むバイオマーカー(つまり、アイスアルジー)の分布も、海氷と密接に関係していることを示唆している。
    日本学術振興会, 基盤研究(B), 北海道大学, 研究代表者, 21H02263
  • 氷河がフィヨルド環境に果たす役割 ―グリーンランドとパタゴニアで何が違うのか―
    2024年04月 - 2025年03月
    野村大樹; 杉山慎; 漢那直也; 松野孝平; 干場康博
    北海道大学低温科学研究所, 一般共同研究, 北海道大学低温科学研究所, 24G046
  • 太平洋側北極海の海氷減少による大型カイアシ類の分布域拡大の可能性
    2国間交流事業共同研究
    2023年04月 - 2025年03月
    松野孝平
    日本学術振興会, 北海道大学, 研究代表者
  • 海洋課題 北極海環境動態の解明と汎用データセットの構築
    2022年04月 - 2025年03月
    渡邉 英嗣; 上野 洋路; 伊東 素代; 木村 仁; 張 圓昕; 安中 さやか; 八田 真理子; 中嶋 亮太; 池上 隆仁; 村田 昌彦; 重光 雅仁; 野口 真希; 西野 茂人; 小野寺丈尚太郎; 藤原 周; 杉江 恒二; 木元 克典; 喜多村 稔; 阿部 泰人; 松野 孝平; 笠井 亮秀; 川上 達也; 野村 大樹; 平田 貴文; ガルシア・モリノス・ホルヘ; アラビア・ドロルフイー・アイリーン; 大島 慶一郎; 西岡 純; 亀山 宗彦; 山本 正伸; 平譯 享; 伊藤 優人; 原田 尚美; 塩崎 拓平; 川口 悠介; 小平 翼; 溝端 浩平; 川合 美千代
    文部科学省 北極域研究加速プロジェクト, JPMXD1420318865
  • 北極海洋生態系を育む「種」を運ぶDirty Iceの役割とその空間分布の解明
    科学研究費助成事業
    2021年04月 - 2025年03月
    藤原 周; 八田 真理子; 伊藤 優人; 塩崎 拓平; 松野 孝平
    日本学術振興会, 基盤研究(B), 国立研究開発法人海洋研究開発機構, 21H03583
  • 函館湾七重浜における植物プランクトン群集が温暖化で受ける影響の評価
    先端的な学術研究
    2021年04月 - 2022年03月
    松野孝平
    公益財団法人 南北海道学術振興財団, 北海道大学, 研究代表者
  • 画像イメージングによるベーリング海陸棚域における動物プランクトン経年変動解析
    科学研究費助成事業
    2017年04月 - 2022年03月
    山口 篤; 松野 孝平
    気候変動が海洋低次生態系にどのような影響を与えるのかを評価するために、1955-2013年の59年間にわたり同一の方法で採集されたホルマリン固定動物プランクトン試料に基づき、その湿重量バイオマスの経年変化を明らかにした。気候レジームの異なる連続2年の計8年において採集された試料は、画像イメージング機器のZooScanによる分類群とサイズ解析を行った。野外用の画像イメージング機器として、大型クラゲ類を対象とするフレームカメラを開発した。海氷融解タイミングの異なる2017年と2018年に、植物プランクトンから海鳥まで、各栄養段階の経年変化を明らかにし、各栄養段階の関係性を評価した。
    日本学術振興会, 基盤研究(A), 北海道大学, 17H01483
  • 餌生物の違いがカイアシ類の成長生産に与える影響に関する実験生態学的研究
    科学研究費助成事業 若手研究
    2018年04月01日 - 2021年03月31日
    松野 孝平
    本研究は、船上および陸上実験室において実験生態学的な手法を用い、カイアシ類の摂餌から成長・生産過程に関わる生理活性に、餌生物の違いが与える影響を明らかにすることを目的としている。令和元年度は、JMSTEC海洋地球研究船みらいの北極航海(2019年9月27日~11月10日)に参加し、太平洋側北極海においてカイアシ類の餌である植物プランクトンおよびカイアシ類の採集を行った。採集したカイアシ類を用いて、消化管色素量を測定し、摂餌速度を求めた。同時に、安定同位体および脂肪酸組成も分析している。これらの情報を総合的に解析することで、餌の状態(密度や組成)によりどのようにカイアシ類の摂餌が変化するのか、さらにカイアシ類自身の状態(油球蓄積の多寡など)による影響も評価することができると期待される。本研究に関連する研究成果としては、査読付き論文3報、査読無し論文4報、学会での口頭及びポスター発表を15件行った。
    令和元年度の研究成果において、最も重要な成果としては、太平洋にしか分布していないカイアシ類(太平洋産種)が北極海内に輸送された時に、あまり餌を摂餌していないことを船上実験で明らかにした点である。北極海内の海氷減少とともに、南方種である太平洋産種が北極海内に侵入する数が増加していることが観測されているが、その輸送された種が北極海内の生態系にどのように影響を及ぼすかは報告が無かった。本研究課題により、輸送された先の北極海内では、太平洋産種による摂餌の影響は大きくないことが定量的に示された。また逆にカイアシ類の視点から考えると、従来の分布域(北太平洋亜寒帯域)での摂餌と比べて、北極海内での摂餌速度は低かったために、北極海内の餌環境は好ましくないものと捉えることもできる。この結果から、不適な餌環境に遭遇すると、カイアシ類の摂餌速度は下がり、それを受け生理活性も下がることが推察される。
    日本学術振興会, 若手研究, 北海道大学, 研究代表者, 競争的資金, 18K14506
  • 海氷中の低次生態系の動態に関する研究
    平成31年度北極域研究共同推進拠点 共同推進研究
    2019年04月 - 2020年03月
    松野孝平
    北海道大学, 研究代表者, 競争的資金
  • 有殻翼足類の再生産と初期発育段階に関する生態学的研究
    2019年度個別研究助成
    2019年04月 - 2020年03月
    松野孝平
    公益財団法人水産無脊椎動物研究所, 研究代表者, 競争的資金
  • 季節海氷域における海氷期の生態系構造に関する研究
    平成30年度北極域研究共同推進拠点 共同推進研究
    2018年04月 - 2019年03月
    松野孝平
    北海道大学, 研究代表者, 競争的資金
  • 西部北極海の海氷減少と海洋渦が生物ポンプに与える影響評価
    科学研究費助成事業 基盤研究(A)
    2015年04月 - 2019年03月
    小野寺 丈尚太郎; 田中 裕一郎; 渡邉 英嗣; 溝端 浩平; 池上隆仁; 松野孝平
    海氷減少が進む北極海太平洋側において、海洋物理環境(海洋表層循環や海洋渦の動態)と生物源粒子(プランクトン遺骸など)や陸源砕屑物の陸棚から海盆側への輸送との関連を調査した。陸棚縁辺部および海盆側(陸棚斜面域)に設けた定点観測点では、陸棚起源物質の供給が断続的に増加し、その現象は海洋表層循環場の状況に応じて陸棚起源の粒子を取り込んだ太平洋起源水や海洋渦の移流を反映していた。2011~2018年において研究海域の海洋循環場は大きく経年変動をしており、その動態が海盆域における陸棚物質の供給域の分布やそれらを消費する海盆側の低次生態系にも影響を与えうることが示唆された。
    日本学術振興会, 基盤研究(A), 国立研究開発法人海洋研究開発機構, 15H01736
  • 海外特別研究員
    2016年04月 - 2018年03月
    松野孝平
    日本学術振興会, 研究代表者, 競争的資金
  • 北極環境研究若手研究者派遣支援事業
    2014年12月 - 2014年12月
    松野孝平
    国立極地研究所, 研究代表者, 競争的資金
  • 海外渡航援助
    2012年02月 - 2012年02月
    松野孝平
    日本海洋科学振興財団, 研究代表者, 競争的資金
  • 地球温暖化が西部北極海の動・植物プランクトンに与える影響
    科学研究費助成事業 特別研究員奨励費
    2011年 - 2012年
    松野 孝平
    本研究は研究サブテーマとして以下の4つを設け、本年度より派生展開的な新サブテーマ(5)を設けた。以下に各サブタイトルの成果を記す。
    (1)2010年夏季の西部北極海における植物プランクトンの水平分布
    2010年みらい北極航海にて採取した植物プランクトン試料を解析した。得られた結果をまとめ、IPY2012にてポスター発表を行った。さらに、「Horizontal distribution of microplankton community structure in the western Arctic Ocean during late summer of 2010」とした学術論文をPolar Biologyに投稿し、現在査読中である。
    (2)2010年夏季の西部北極海における動物プランクトンの水平分布
    2008および2010年みらい北極航海にて採集した動物プランクトン試料の検鏡を行った。得られた結果をまとめ、ASLOにて口頭発表を行った。今後は、2012年みらい航海の試料も解析する予定である。
    (3)西部北極海における動物プランクトンの摂餌生態
    2010年および2012年のみらい北極航海においてカイアシ類摂餌実験(計18回)によりデータを取得した。しかし、取得したデータだけでは「動物プランクトンによる植物プランクトンへの摂餌インパクトの評価」には不十分であるため、2013年6-7月のおしょろ丸北洋航海および9-10月のみらい北極航海にて引き続き実験を行う予定である。
    (4)チャクチ海における動物プランクトンサイズ組成の経年変動
    1991、1992、2007および2008年にチャクチ海で採集された動物プランクトン試料のOPC測定を行った。得られた結果をまとめ、タイトル「Biomass size spectra of mesozooplankton in the Chukchi Sea during summers of 1991/1992 and 2007/2008:an analysis by optical plankton counter」とした学術論文を執筆し、2nd ESSASの特集号(ICES Journal of Marine Science)に学術論文を投稿し、受理・印刷済みである。
    (5)セジメントトラップによって採集された動物プランクトン群集の季節変動
    西部北極海において2010年10月~2011年9月にかけてセジメントトラップにより採集された動物プランクトン試料の解析を行った。得られた結果を、3rd ESSASおよびISAR-3にて発表し、タイトル「Seasonal changes in mesozooplankton swimmers collected by sediment trap moored in the western Arctic Ocean」とした学術論文をJournal of Plankton Researchに投稿し、現在査読中である。
    日本学術振興会, 特別研究員奨励費, 北海道大学, 11J04167

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