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許英叔,崔信錫 충남대학교 교육대학원 1983 碩士學位論文集 Vol.1 No.-
In order to analyze the fish distribution of the Geum river and its tributary, the common species, rare species, species richness, and species diversity were studied from May 1980 to May 1982. 1. 52 species in 9 families were collected in the main stream, whereas 32 species and 8 families in the tributary. Zacco platypus showed the highest value in relative abundance at both the main stream(16.5%) and the tributary(33.8%). The log-normal line of relative abundance in the main stream and the tributary were all belong to C class. 2. Zacco platypus, Hemibarbus longirostris, Pseudobagrus emarginatus, Psedogobio esocinus, Opsarichthys bidens, Paracheilognatus rhombea, Coreoleuciscus Splendidus and Microphysogobio yaluensis were common specis in the main stream. Zacco platypus and Cobitis koreensis were common species in the tributary. 3. In the upper and the middle river, the species diversity, species richness of the mein stream were higher than that of the tributary. In the lower river, the species diversity, species richness of the main stream were lower than that of the tributary. 4. It was found that the species diversity was not significantly related to the dominance index in the main stream. But the dominance was inversely related to diversity in the tributary. The species diversity was rather high in the main stream, but there was not any apparent dominance species. The species diversity of the tributary was rather low. But it was apparent that there were several dominant species in the tributary.