2004 Fiscal Year Final Research Report Summary
Adaptive management of a watershed ecosystem on the basis of ecological heslth of a river ecosystem
| Project/Area Number |
14580590
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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 |
環境保全
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| Research Institution | Ehime University |
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Principal Investigator |
OMORI Koji Ehime University, Center for Marine Environmental Studies, Associate Professor, 沿岸環境科学研究センター, 助教授 (10152258)
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| Project Period (FY) |
2002 – 2004
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| Keywords | river ecosystem / mathematical model / watershed ecosystem / ecological health |
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| Research Abstract |
What kind of factor drives the water quality of a stream is what we want to know here. For a long time, the importance of biological community in determining the water quality of a stream has not been asked, and only the effects of water quality on biological communities. A one-dimensional simple model of a stream ecosystem, which has three functional groups, i.e.grazers, deposit and suspension feeders, in addition to basic ecosystem components such as primary producer and pools of organic and inorganic matter, was analyzed.
Various types of communities with different composition of functional groups, which totaled up to eight cases, were analyzed, and we can get the result that the community structure of functional groups has important effects on water quality of a stream ecosystem. Particularly, high diversity of functional group, which includes all three functional group, lead to the limitation on a concentration of organic matter. It means high level of water quality of a stream ecosystem.
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Research Products
(14 results)
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[Journal Article] Habitat use of the grazing goby (Sicyopterus japonicus) in response to spatial heterogeneity in riparian shades.2003
Author(s)
Abe, S., Iguchi, K., Ito, S., Uchida, Y., Ohnishi, H., Omori
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Journal Title
Journal of Freshwater Ecology 18・1
Pages: 161-167
Description
「研究成果報告書概要(和文)」より
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[Journal Article] Habitat use of the grazing goby (Sicyopterus japonicus) in response to spatial heterogeneity in riparian shade.2003
Author(s)
Abe, S., Iguchi, K, Ito, S., Uchida, Y., Ohnishi, H., Omori, K.
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Journal Title
Journal of Freshwater Ecology 18・1
Pages: 161-167
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Primary production structure and energy flow of coastal ecosystems in Aki-Nada along the coast of the Shikoku Island, Japan.
Author(s)
Omori, K., Fukumoto, R., Okuda, N., Mishima, Y., Yoshino, K
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Journal Title
Marine Pollution Bulletin (in press)
Description
「研究成果報告書概要(和文)」より
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