2010 Fiscal Year Final Research Report
Ecosystem responses by epipelagic organisms to dust flux and its feedback to climate
| Project Area | Linkages in biogeochemical cycles between surface ocean and lower atmosphere |
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| Project/Area Number |
18067008
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TSUDA Atsushi 東京大学, 大気海洋研究所, 教授 (80217314)
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| Co-Investigator(Kenkyū-buntansha) |
MICHIDA Yutaka 東京大学, 大気海洋研究所, 教授 (20323628)
SAITO Hiroaki (独)水産総合研究センター, 東北区水産研究所, 室長 (30371793)
TAKAHASHI Kazutaka (独)水産総合研究センター, 東北区水産研究所, 主任研究員 (00301581)
SUZUKI Koji 北海道大学, 地球環境科学研究院, 准教授 (40283452)
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| Project Period (FY) |
2006 – 2010
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| Keywords | 鉄 / ダスト / 生態系変動 / 亜熱帯太平洋 / 動物プランクトン / 台風 |
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| Research Abstract |
This group provided the biological information to the group who studied the biogenic gasses such as DMS to understand the mechanisms of the variation. Some on-deck incubation experiments showed that diatoms are most important phytoplankton enhanced by typhoon passing and suggested possibilities of altering the carbon cycling and food web structure. Argo-floats with a chlorophyll sensor were deployed. Although we have not observed a typhoon passing, some anomalies of high chlorophyll concentration have been observed. We also found that many copepod species showed seasonal vertical migration behavior, which had recognized as characteristic behavior to polar zooplankton. These results suggest that biological production in the subtropical Pacific is largely depend on the unpredictable spatial and temporal variability of primary production.
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[Journal Article] Mesoscale iron enrichment experiments 1993-2005: Synthesis and future direction2007
Author(s)
Boyd, P.W., T. Jickells, C.S. Law, S. Blain, E.A., Boyle, K.O. Buesseler, K.H. Coale, J.J. Cullen, H.J.W. de Baar, M. Follows, M. Harvey, C. Lancelot, M. Levasseur, N.P.J. Owens, R. Pollard, R.B. Rivkin, J. Sarmiento, V. Schoemann, V. Smetacek, S. Takeda, A. Tsuda, S. Turner, A.J. Watson
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Journal Title
Science
Volume: 315
Pages: 612-617
Peer Reviewed
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