2016 Fiscal Year Final Research Report

Long-term change study of marine biogeochemical cycle and ecosystems

Planned Research

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Project Area	New Ocean Paradigm on Its Biogeochemistry, Ecosystem and Sustainable Use
Project/Area Number	24121007
Research Category	Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
Allocation Type	Single-year Grants
Review Section	Complex systems
Research Institution	Japan Agency for Marine-Earth Science and Technology
Principal Investigator	CHIBA Sanae 国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 主任研究員 (40360755)
Co-Investigator(Kenkyū-buntansha)	虎谷充浩東海大学, 工学部, 教授 (90246075) 小埜恒夫国立研究開発法人水産研究・教育機構, 中央水産研究所, 研究室長 (40371786) 橋岡豪人国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 研究員 (00463092) 安中さやか国立研究開発法人海洋研究開発機構, 地球環境観測研究開発センター, 研究員 (80620393)
Co-Investigator(Renkei-kenkyūsha)	HONDA Makio 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 上席技術研究員 (20359160)
Research Collaborator	NOJIRI Yukihiro ICHIKAWA Tadafumi NAKAOKA Shinichiro YOSHIKI Tomoko
Project Period (FY)	2012-06-28 – 2017-03-31
Keywords	海洋区系 / 長期変動 / 生元素 / 生態系 / 温暖化予測 / 北太平洋
Outline of Final Research Achievements	Using ship-based time-series data, satellite observation data, and by ecosystem modelling, we investigated regionally specific spatial and temporal variations of biogeochemical and plankton biodiversity over the North Pacific. Based on the regional differences, we developed three new ocean provinces: “Biogeochemical Provinces”, “Chlorophyll a Provinces” and “Phytoplankton Diversity Provinces”. We particularly focused on the annual variation of boundary areas of each provinces as the regions which are potentially sensitive to environmental variations. Model projection on “Phytoplankton Diversity Provinces” suggested hot spots of biodiversity changes that are potentially induced by global warming in the end of 21st century. We expect that the outcome of this study can suggest better conservation and management options for marine special planning.
Free Research Field	生物海洋学　プランクトン生態学　気候変動に関する海洋生態系の応答機構研究