Researcher Profile and Settings

Affiliation

• Field Science Center for Northern Biosphere　Forest Research Station　Teshio Experimental Forest

Job Title

• Assistant Professor

Degree

• Doctor of Agriculture（2013/03 Tokyo University of Agriculture and Technology）

Research funding number

• 60893576

ORCID ID

•  https://orcid.org/0000-0003-3151-9000

J-Global ID

• 202301008646145979

Research Areas

• Life sciences / Forest science
• Life sciences / Ecology and environmental science
• Environmental science/Agricultural science / Rural environmental engineering and planning

Academic & Professional Experience

• 2023/02 - Today Hokkaido University Field Science Center for Northern Biosphere Forest Research Station
• 2018/04 - 2023/01 Tokyo University of Agriculture and Technology
• 2015/04 - 2018/03 Kanagawa Prefectural Natural Environment Conservation Center
• 2014/04 - 2015/03 Tokyo University of Agriculture and Technology
• 2012/04 - 2014/03 Japan Society for the Promotion of Science

Education

• 2010/04 - 2013/03  Tokyo University of Agriculture and Technology  United Graduate School of Agricultural Science
• 2007/04 - 2009/03  東京農工大学大学院
• 2002/04 - 2007/03  Tokyo University of Agriculture and Technology  Faculty of Agriculture

Research Activities

Published Papers

• 流域的視点を踏まえた森林科学と応用地形学-森林植生と地形プロセスの相互作用とその時空間スケール-

  五味高志, 猪越翔大, 荒田洋平, 小柳賢太, 大平充

  地形 2023 [Refereed]
  
• Spatiotemporal patterns in differences between the 137Cs concentrations of forest and stream litters: effect of leaching

  Masaru Sakai, Mitsuru Ohira, Takashi Gomi

  Environmental Science: Processes & Impacts 25 1385 - 1390 2023 [Refereed]
  
• Exploring functional flow heterogeneity in regulated flow regime: fish species turnover along hydraulic gradients in an artificial waterway network

  Mitsuru Ohira, Shinji Fukuda

  River Research and Applications 39 (10) 1961 - 1971 2023 [Refereed][Not invited]
  
• Modelling fish co-occurrence patterns in a small spring-fed river using a machine learning approach

  Yuki Matsuzawa, Shinji Fukuda, Mitsuru Ohira, Bernard De Baets

  Ecological Indicators 151 110234  2023 [Refereed]
  
• Effects of anthropogenic shoreline alteration on fish emigration from small lakes

  Yoshito Mitsuo, Mitsuru Ohira, Hiroshi Tsunoda, Masahide Yuma

  Limnology 24 217 - 225 2023 [Refereed]
  
• Social characteristics and sustainability of residents-led biological monitoring in Japanese agricultural landscapes

  Masayuki Nitta, Naohisa Nakashima, Mitsuru Ohira, Muneyuki Aoki

  Journal of Environmental and Rural Development 13 (2) 19 - 25 2022 [Refereed]
  
• Ecological resilience of physical plant–soil feedback to chronic deer herbivory: Slow, partial, but functional recovery

  Mitsuru Ohira, Takashi Gomi, Ayana Iwai, Marino Hiraoka, Yoshimi Uchiyama

  Ecological Applications e2656  2022 [Refereed]
  
• Long-term impacts of forest disturbances: Comparing cumulative effects of clearcut logging versus landslide on stream conditions and abundance of a headwater stonefly Scopura montana

  Mitsuru Ohira, Yu’usuke Watanabe, Takashi Gomi, Masaru Sakai

  Freshwater Biology 66 (10) 2004 - 2015 2021 [Refereed]
  
• Effects of bedrock groundwater dynamics on runoff generation: a case study on granodiorite headwater catchments, western Tanzawa Mountains, Japan

  Yutaka Abe, Yoshimi Uchiyama, Masahiko Saito, Mitsuru Ohira, Takahide Yokoyama

  Hydrological Research Letters 14 (1) 62 - 67 2020 [Refereed]
  
• 都市湧水河川におけるホトケドジョウ未成魚の生息環境評価

  松澤優樹, 福田信二, 大平充

  水工学論文集 65 1321 - 1326 2020 [Refereed]
  
• 水環境整備の実施後30年が経過した農村地域における子どもの水遊びを支える水路環境に関する研究

  新田将之, 藤森拓人, 中島正裕, 大平充

  農村計画学会誌 2019 [Refereed]
  
• ランダムフォレストを用いたホトケドジョウの生息環境評価モデルの構築

  松澤優樹, 福田信二, 大平充

  土木学会論文集B1 (水工学) 75 (2) 541 - 546 2019 [Refereed]
  
• Flow regime shapes seasonal patterns of fish species richness and abundance in main and branch channels of a rice irrigation system

  Mitsuru Ohira, Shinji Fukuda

  Paddy and Water Environment 16 541 - 546 2018 [Refereed]
  
• Cesium-137 contamination of river food webs in a gradient of initial fallout deposition in Fukushima, Japan

  Junjiro N. Negishi, Masaru Sakai, Kengo Okada, Aimu Iwamoto, Takashi Gomi, Kazuki Miura, Masanobu Nunokawa, Mitsuru Ohira

  Landscape and Ecological Engineering 10 309 - 321 2018 [Refereed]
  
• 琵琶湖に生息する絶滅危惧種ハス（Opsariichthys uncirostris uncirostris）の成長の現状

  角田裕志, 浦野隆弘, 大平充

  野生生物と社会 3 (2) 29 - 39 2016 [Refereed]
  
• Comparison of food habits between native Amur three-lips (Opsariichthys uncirostris uncirostris) and non-native largemouth bass (Micropterus salmoides) in Lake Biwa, Japan

  Hiroshi Tsunoda, Takahiro Urano, Mitsuru Ohira

  Annales de Limnologie-International Journal of Limnology 51 (3) 273 - 280 0003-4088 2015 [Refereed][Not invited]
   

  The Amur three-lips (Opsariichthys uncirostris uncirostris) is an endemic subspecies in Japan and native to the river systems of the Lake Biwa-Yodo River. The population of three-lips in Lake Biwa has decreased, primarily due to habitat degradation and introduction by competitive, non-native predators, such as largemouth bass (Micropterus salmoides). However, the effects of bass introduction on the three-lips are unclear. We investigated the food habits of the three-lips and compared them with those of sympatric non-native largemouth bass in Lake Biwa. A total of 145 three-lips and 178 largemouth bass were sampled during the summer and fall of 2013. Fish prey, particularly ayu (Plecoglossus altivelis altivelis), was predominant in the three-lips diet, followed by terrestrial insects. Decapods (i.e., prawn and shrimp), ayu and demersal fish (e.g., gobids) composed a substantial proportion of bass diets. No significant dietary overlaps were found between the two predators. Our results suggest that differences in food habits between the two species may result from differences in feeding behavior; the three-lips is a mobile predator that forages mainly on nektonic and suspended food, whereas largemouth bass is an ambush predator that forages on both nektonic and benthic prey. We referred the results of three-lips diets in Lake Biwa in a previous study and suggest that changes in fish fauna, due to introduction by non-native largemouth bass, may have affected prey availability for the three-lips.
• Niche processes and conservation implications of fish community assembly in a rice irrigation system

  Mitsuru Ohira, Hiroshi Tsunoda, Kazuya Nishida, Yoshito Mitsuo, Yutaro Senga

  Aquatic Conservation: Marine and Freshwater Ecosystems 25 322 - 335 2015 [Refereed]
  
• Movement and assemblage of fish in an artificial wetland and canal in a paddy fields area, in eastern Japan

  Kazuya Nishida, Mitsuru Ohira, Yutaro Senga

  Landscape and Ecological Engineering 10 309 - 321 2013 [Refereed]
  
• Movement patterns of small benthic fish in lowland headwater streams

  Yoshito Mitsuo, Mitsuru Ohira, Hiroshi Tsunoda, Masahide Yuma

  Freshwater Biology 58 (11) 2345 - 2354 2013 [Refereed]
  
• 農業水路における瀬－淵および微生息場と水生昆虫群集の多様性の構成

  大平充, 千賀裕太郎

  環境情報科学論文集 26 325 - 328 2012 [Refereed]
  
• 山梨県西湖および精進湖における近年の魚類相の変化と国内外来魚の侵入

  角田裕志, 土井真樹絵, 大平充, 満尾世志人, 千賀裕太郎

  野生生物保護 13 (2) 59 - 66 2012 [Refereed]
  
• Stomach contents of introduced bluegill in Lake Shojiko, Yamanashi prefecture

  Hiroshi Tsunoda, Yoshito Mitsuo, Mitsuru Ohira, Yutaro Senga

  Journal of Environmental Information Science 39 1 - 8 2011 [Refereed]
  
• 北上川支流の農業排水路におけるギバチ（Pseudobagrus tokiensis）当歳魚の胃内容物

  角田裕志, 土井真樹絵, 大平充, 満尾世志人, 千賀裕太郎

  農業農村工学会論文集 79 (6) 465 - 468 2011 [Refereed]
  
• 農業排水路の生態系配慮工法区間における魚類相と水路環境の推移

  西田一也, 満尾世志人, 皆川明子, 角田裕志, 西川弘美, 大平充, 庄野洋平, 千賀裕太郎

  農業農村工学会論文集 79 (2) 45 - 53 2011 [Refereed]
  
• Nested subset patterns of species composition in a pond-dwelling fish fauna

  Yoshito Mitsuo, Hiroshi Tsunoda, Mitsuru Ohira, Makie Doi, Yutaro Senga

  Ecological Research 26 311 - 316 2011 [Refereed]
  
• 山梨県精進湖内の異なる生息環境間におけるオオクチバスの食性比較

  角田裕志, 満尾世志人, 大平充, 千賀裕太郎

  環境情報科学論文集 24 405 - 410 2010 [Refereed]
  
• Change of fish fauna in ponds after eradiation of invasive piscivorous largemouth bass, Micropterus salmoides, in north-eastern Japan

  Hiroshi Tsunoda, Yoshito Mitsuo, Misuru Ohira, Makie Doi, Yutaro Senga

  Aquatic Conservation: Marine and Freshwater Ecosystems 20 710 - 716 2010 [Refereed]
  
• The fish fauna of farm ponds in northeastern Japan and its contribution to the maintenance of regional fish diversity

  Yoshito Mitsuo, Mitsuru Ohira, Hiroshi Tsunoda, Yohei Shono, Yutaro Senga

  Journal of Environmental Information Science 38 89 - 96 2010 [Refereed]
  
• Threatened fishes of the world: Lefua echigonia (Jordan and Richardson 1907) (Balitoridae)

  Yoshito Mitsuo, Hiroshi Tsunoda, Mitsuru Ohira, Makie Doi, Yutaro Senga

  Environmental Biology of Fishes 86 (2) 307 - 308 2009 [Refereed]
  
• 農業水路における魚類の越冬環境に関する研究

  西田一也, 大平充, 千賀裕太郎

  環境情報科学論文集 23 197 - 202 2009 [Refereed]
  
• 奥州市胆沢区南部のため池における外来魚オオクチバスの在来魚類に対する影響の差異

  角田裕志, 満尾世志人, 大平充, 土井真樹絵, 千賀裕太郎

  環境情報科学論文集 22 191 - 196 2008 [Refereed]
  
• ため池内に生息する魚類による水域ネットワークの利用実態－岩手県のため池を事例として－

  満尾世志人, 大平充, 角田裕志, 千賀裕太郎

  環境情報科学論文集 22 185 - 190 2008 [Refereed]
  
• 低標高小流域における魚類の流程分布と環境条件

  大平充, 西田一也, 満尾世志人, 角田裕志, 千賀裕太郎

  環境情報科学論文集 22 175 - 180 2008 [Refereed]
  

Books etc

• Sika Deer: Life History Plasticity and Management

  Takashi Gomi, Mitsuru Oohira, Marino Hiraoka, Shusuke Miyata, Yoshimi Uchiyama (Joint workImpact of Sika Deer on soil properties and erosion)
  Springer 2022
• 砂防の観測の現場を訪ねて２―山地河川内の複雑な土砂の動きを知る―

  大平充, 五味高志, 内山佳美 (Joint work第11章 シカの食害が山地流域からの流出土砂量に及ぼす影響―神奈川県丹沢山大洞沢観測所における水と土砂動態観測―)
  砂防学会 2021