Research theme for competitive and other funds (31)：
2022 - 2025 Environmental DNA explores fish community under Arctic sea ice
2022 - 2025 Study on fish community structure using environmental DNA under the Arctic sea ice
2021 - 2025 Influence of global environment change and artificial environmental modification on distribution and migration mechanisms of eel genus Anguilla
2017 - 2021 環境DNAを用いた全国の河川におけるニホンウナギの分布・生息量推定
2016 - 2020 Studies on the restoration of Japanese eel stocks through understanding of ecological connectivity between rivers and coasts
2013 - 2018 環境DNA分析に基づく魚類群衆の定量モニタリングと生態系評価方法の開発
2014 - 2017 Studies of regional development strategies based on agricultural- and fishery- production systems through ecological connectivity from forests to oceans
2010 - 2014 Field experiments on the restoration of hypoxic environment in enclosed bays: practice in Omura Bay as a simulator.
2009 - 2012 Estimate of biological productivity of estuarine and coastal areas as nursery grounds for commercially important fish juveniles
2009 - 2011 Biochemical studies on of ecological function of meiobenthos
2008 - 2010 農業系水域ネットワークに生息する生物の移動履歴に関する生体情報分析法の開発
2006 - 2008 Effect of increase of jerry fish on coastal ecosystem accompanied by hypoxia
2006 - 2008 Studies on mechanisms of high biological production associated with large turbulence mixing
2006 - 2008 Studies on the utilization of terrestrial organic matter in the biological production system of estuarine and coastal waters
2006 - 2008 Origin and unique characteristics of "Continental relict ecosystem"existed in the bottom of Ariake Bay, Japan
2002 - 2004 貝類による陸上起源有機物の除去量の推定
2000 - 2001 伊勢湾下層に形成される貧酸素水塊の分布、変動に及ぼす流動構造の影響
1997 - 1999 Effect of meso-scale oceanographic features on the larval growth and survival of small pelagic fishes in the Kuroshio-Oyashio transitional regions.
1996 - 1997 Analysis of migration paths and life histories of aquatic animals by means of biotelemetry system
1996 - 1996 黒潮フロント域における低次生産に関する研究
1995 - 1995 生物装着記録標識を用いたブリ成魚の回遊行動に関する研究
1993 - 1994 Migration behavior of loggerhead turtle measured by datatags.
安定同位体による海域生態系の解明
内湾域の流動構造
内湾、沿岸海域における生物生産環境
浮魚の再生産におよぼす卵稚仔輸送の影響
Ecosystem in the Ocean examined by stable istope analysis
Flow pattern in estuaries
Biorogical production and physical environment in coastal waters
The effect of egg and larval transport on the recruitment of Pelagic fish
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Papers (122)：
Takafumi Hirata, Irene D. Alabia, Amane Fujiwara, Yuri Fukai, Jorge García Molinos, Akihide Kasai, Tatsuya Kawakami, Kohei Matsuno, Jonaotaro Onodera, Takuhei Shiozaki, et al. 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. Polar Science. 2025. 101260-101260
Chalvin Putra Rura, Akihide Kasai. Long-term increasing water quality trends in Hakodate Bay, Hokkaido, driven by meteorological factors. Regional Studies in Marine Science. 2025. 84. 104123-104123
Gerlien Verhaegen, Tatsuya Kawakami, Ayla Murray, Akihide Kasai, Charlotte Havermans. Metazoan Diversity and Its Drivers: An eDNA Survey in the Pacific Gateway of a Changing Arctic Ocean. Environmental DNA. 2025. 7. 2
Tatsuya Kawakami, Makoto Ozaki, Aya Yamazaki, Daiki Nomura, Akihide Kasai. Overwintering Fish Community in Ice-Covered Environments in Hokkaido, Japan, Inferred From Environmental DNA. Environmental DNA. 2025. 7. 2
Yusuke Hamao, Kyosei Morimoto, Shoko Tatamisashi, Masahide Wakita, Akihide Kasai, Kohei Matsuno. Seasonal changes in the protist communities of Hakodate Bay, southern Hokkaido, from 2020 to 2022. Regional Studies in Marine Science. 2024. 78
2024/03 - The Japanese Society of Fisheries Science Award of Excellence for a Scientific Paper The effect of temperature on environmental DNA degradation of Japanese eel
2022/03 - Award of Excellence for a Scientific Paper Dispersion and degradation of environmental DNA from caged fish in a marine environment
2017/03 - Japanese Society of Fisheries Oceanography Best paper award of Japanese Society of Fisheries Oceanography
2006/03 - 日本水産学会 論文賞 Food sources for the bivalve Corbicula japonica in the foremost fishing lakes estimated from stable isotope analysis
2002/03 - 水産海洋学会 水産海洋学会論文賞 伊勢湾の流動構造と貧酸素水塊
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Association Membership(s) (7)：
EAST ASIA EEL SOCIETY
, 瀬戸内海研究会議
, 日本海洋学会沿岸海洋研究部会
, THE eDNA SOCIETY
, JAPANESE SOCIETY OF FISHERIES OCEANOGRAPHY
, THE JAPANESE SOCIETY OF FISHERIES SCIENCE
, THE OCEANOGRAPHIC SOCIETY OF JAPAN
