2016 Fiscal Year Final Research Report
Nutritional influence of feed plankton on reproduction of coastal copepods
| Project/Area Number |
25450262
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aquatic bioproduction science
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| Research Institution | Kitasato University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | 動物プランクトン / カイアシ類 / 微細藻類 / 摂食活性 / 卵生産 / 脂肪酸 |
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| Outline of Final Research Achievements |
Feeding activity and egg production in the neritic copepods were investigated using nine microalgae (four dinoflagellates, one cryptophyte, haptophyte, prasinophyte, raphidophyte and diatom) as food. The fatty acid composition of these microalgae was measured, and the intake of each fatty acid in the copepod was also determined. Copepod clutch sizes were increased with increaing an intake of n-3 poly-unsaturated fatty acids, especially, 22:6(n-3) fatty acid (docosahexaenoic acid). Field incubation experiments to examine the feeding activity on microplankton assemblage and the egg production of neritic ccopepod revealed that there was a significant positive correlation between ingestion rate on dinoflagellates/oligotrich ciliates and spwning number of copepods.
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| Free Research Field |
海洋プランクトン
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