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논문 기본 정보

자료유형
학술저널
저자정보
Tang, Hong Qu (Department of Biology and The Korea Institute of Ornithology, Kyung Hee University) Bae, Mi-Jung (Department of Biology and The Korea Institute of Ornithology, Kyung Hee University) Chon, Tae-Soo (Department of Biological Sciences, Pusan National University) Song, Mi-Young (West Sea Fisheries Research Institute) Park, Young-Seuk (Department of Biology and The Korea Institute of Ornithology, Kyung Hee University)
저널정보
한국수생태학회 한국하천호수학회지 한국하천호수학회지 제42권 제3호
발행연도
2009.1
수록면
303 - 316 (14page)

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Benthic macroinvertebrate communities collected from eight different streams in South Korea were analyzed to compare community and biological indices across different levels of water pollution. The Self-Organizing Map (SOM) was utilized to provide overview on association of the proposed indices. The sample sites were accordingly clustered according to the gradient of pollution on the SOM. While the general trends of the indices were commonly observable according to different levels of pollution, the detailed differences among the indices were also illustrated on the SOM. The conventional diversity and evenness indices tended to be high even though the water quality state was poor representing relatively weak gradient at polluted sites, while the index presenting the saprobic degree such as family biotic index showed the stronger gradient at the polluted area and was robust to present the gradient. Our results also confirmed the general characterization of two indices: The Shannon index is more strengthened by the number of species occurring at the sample sites, while the Simpson index is more influenced by the degree of evenness among the species. The patterning based on the SOM was efficient in comparatively characterizing the proposed indices to present ecological states and water quality.

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