Research theme for competitive and other funds (8)：
2021 - 2024 Revisit a Redfield ratio as a reference value in marine bioactive element cycles
2021 - 2024 The impact of river outflows on the coastal environment
2018 - 2021 Understanding the Mechanisms of oligotrophication in Mutsu Bay for sustainable bivalve culture
2012 - 2017 Transfer and accumulation of radioactive material in marine ecosystem
2011 - 2014 A study on inventory and distribution of nutrient in seawater together with higher comparability
2011 - 2013 Impact estimations of the ocean acidification on the calcium carbonate plankton in the Subarctic Pacific.
2010 - 2012 Impact of elevated CO2 on phytoplankton growth and organic matter production
2004 - 2006 Observational research for iron, biological productivity, and carbon cycle in the subarctic northwestern Pacific
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Papers (53)：
Takaki TSUBONO, Daisuke TSUMUNE, Kazuhiro MISUMI, Takeshi YOSHIMURA. WATER EXCHANGE BETWEEN LAKE AND OCEAN FROM NUMERICAL MODEL REPRODUCTIVITY OF SALT IN BRAKISH LAKE OBUCHI. Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering). 2022. 78. 2. I_625-I_630
藤井賢彦, 芳村毅, 小埜恒夫. Preface: Assessment of impacts of coastal and marine ecosystems to ocean acidification, deoxygenation, and global warming on marine ecosystem. 月刊海洋. 2021. 53. 6
村田昌彦, 青山道夫, 青山道夫, チョン千香子, 三浦勉, 藤井武史, 光田均, 北尾隆, 笹野大輔, 中野俊也, et al. Current situation and future perspective for environmental standards of seawater: commencing with Certified Reference Materials (CRMs) for nutrients. 海の研究. 2020. 29. 5
宮川和大, 長尾誠也, 芳村毅, 加藤寛己, 伊佐田智規. Variation of aquatic humic substances characteristics in river, brackish lake and coastal marine environment. 日本地球化学会年会要旨集(Web). 2020. 67th
