2010 Fiscal Year Final Research Report
NALYTICAL STUDY ON FOODWEB OF COASTAL ECOSYSTEM OF LAKE : CONNECTION BETWEEN PLANKTONIC AND BENTHIC FOOD CHAINS
| Project/Area Number |
20570013
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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 |
Ecology/Environment
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| Research Institution | Tohoku University |
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Principal Investigator |
KIKUCHI Eisuke 東北大学, 東北アジア研究センター, 名誉教授 (00004482)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIKANO Shu-ichi 東北大学, 東北アジア研究センター, 准教授 (70154185)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 食物網 / 湖沼沿岸帯 / 安定同位体比解析 / 浮遊系食物連鎖 / 底生系食物連鎖 / 餌資源解析 |
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| Research Abstract |
We investigated the whole-lake food web in Lake Izunuma, which was one of the Ramsar sites, using carbon and nitrogen stable isotope analysis, and thereby the contributions of pelagic and benthic prey to animals with high trophic position (fish consumers)and the connection between pelagic and benthic food chain in the food web. In Lake Izunuma, the main producers of the food web were phytoplankton (pelagic food chain)and attached algae (benthic or litoral food chain)and most fish consumers had intermediate carbon isotope ratios between phytoplankton and attached algae, indicating they foraged broadly across pelagic and benthic food chains, thereby linking pelagic and benthic food chains.
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Research Products
(18 results)
