Segment Based Ecoregions Based on Fish Fauna for Biological Indicator
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- Itsukushima, Rei
- Graduate School of Engineering, Kyushu University
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- Shimatani, Yukihiro
- Faculty of Engineering, Kyushu University
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- Nakajima, Jun
- Faculty of Engineering, Kyushu University
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- Kawaguchi, Yoichi
- Faculty of Engineering, Kyushu University
Bibliographic Information
- Other Title
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- 環境指標のための魚類セグメントエコリージョン
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Description
The biological indicator should be developed in the ecoregion where biota is relatively identical. Furthermore, as stream biota widely varies from headwater to downstream, it is necessary to define segment based ecoregions where biota is longitudinally identical. In this study, we delineated segment based ecoregions for ten rivers belonging to the northwest Kyushu ecoregion based on the degree of similarity of the fish fauna. The northwest Kyushu ecoregion was divided into five segment based ecoregions. As a result, fish fauna was more clearly characterized by the differences in community structure between segment based ecoregions than those between watersheds. Moreover, distinguishing segment based ecoregions, enabled us to compare the integrity of fish fauna between watersheds, which had been previously difficult to examine.
Journal
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- 水工学論文集
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水工学論文集 53 1189-1194, 2009-02
土木学会
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Details 詳細情報について
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- CRID
- 1050017057728808576
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- NII Article ID
- 120001492762
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- NII Book ID
- AA12199490
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- HANDLE
- 2324/15503
- 10228/0002000542
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles
- KAKEN