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Effects of Artificial Vegetation Island on Fish Fauna  

Byeon, Myeong-Seop (Han River Environment Research Center, National Institute of Environment Research)
Park, Hae-Kyung (Han River Environment Research Center, National Institute of Environment Research)
Jeon, Nam-Hui (Han River Environment Research Center, National Institute of Environment Research)
Choi, Myeong-Jae (Han River Environment Research Center, National Institute of Environment Research)
Kong, Dong-Soo (Han River Environment Research Center, National Institute of Environment Research)
Publication Information
Korean Journal of Ecology and Environment / v.40, no.1, 2007 , pp. 103-109 More about this Journal
Abstract
To investigate the effects of artificial vegetation island (AVI) on fish distribution, we compared fish fauna from artificial vegetation island (AVI) area, which installed in 2000, natural vegetation area (NVA) and vegetation-free area (VFA) at Kyungan Stream area of Lake Paldang from Jul. to Nov., 2005. Results showed that 11 families 23 genera 24 fish species were distributed in the AVI and NVA. Squalidus japonicus coreanus, a small-size fish which generally lives at the downstream, dominated absolutely in the individual numbers. However, only 6 families 11 genera 12 species of fishes caught at the VFA, and dominant fishes were Hemibarbus labeo and Erythroculter erythropterus, a medium to large-size migratory fishes which live in mid-depth of water column. The dominance index was high at the AVI (0.778) and NVA (0.868), whereas the diversity index and evenness index were high at the VFA. Fish distribution at AVI was similar to that of the NVA in numbers of species, indicating that the AVI could playa role as spawning and inhabitation zone to a variety of fishes. We believe that AVI may be used for a restoration of the damaged and disturbed littoral ecosystem.
Keywords
artificial vegetation island; fish fauna; Squalidus japonicus coreanus;
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