Abstract
A series of ecological monitoring surveys was conducted to examine the characteristics of benthic macroinvertebrate community and evaluate the water conditions for lake Chung-Pyoung from August 2008 to April 2009. The benthic macroinvertebrate taxa represented total 84 species belonging to 52 families, 18 orders, 7 classes, 4 phyla from the qualitative and quantitative sampling. Among these, a total of 67 aquatic insect species(about 82%) were comprised of the major groups in all communities. The relative abundance of Ephemeroptera, Trichoptera, Odonata and Mollusca was 20%, 16%, 16% and 13%, respectively. According to the results, Chironomids were major dominant taxa. The primary dominant species was Chironomidae sp.1(92.18~23.28%) followed by Chironomidae sp.6 (65.52~46.69%), Parafossarulus manchouricus(61.29%), Limnodrilus gotoi(47.83%), Ecdyonurus levis(47.27%), Tanypodinae sp.(45.51%). The average values of dominant index(DI), diversity index(H
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