2009 Fiscal Year Final Research Report
Clarifying the characteristics of primary production and their physiological mechanisms during spring Oyashio diatom blooms
| Project/Area Number |
19510001
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Hokkaido University |
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Principal Investigator |
SUZUKI Koji Hokkaido University, 大学院・地球環境科学研究院, 准教授 (40283452)
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| Co-Investigator(Kenkyū-buntansha) |
MINAGAWA Jun 北海道大学, 低温科学研究所, 准教授 (80280725)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 植物プランクトン / 基礎生産 / 光合成 / 春季ブルーム / 親潮 / 西部北太平洋 |
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| Research Abstract |
We obtained the data of phytoplankton photosynthesis and iron in the Oyashio region of the NW Pacific during the spring blooms. Coastal Oyashio waters, which contained relatively high amount of iron, stimulated the photosynthetic activity of phytoplankton, especially diatoms. However, diatoms were generally stressed by low iron availability even in the spring blooms. We also determined the effects of temperature, light, and iron availability on photosynthetic features of the representative bloom-forming diatom species isolated from Oyashio waters, through batch culture experiments.
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