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A Study on the Benthic Macroinvertebrates and Biological Water Quality Evaluation in Nature Sabbatical Area of Unmunsan  

Lee, Jong-Wook (Dept. of Biology Yeungnam University)
Choi, Jin-Kyung (National Institute of Environmental Research)
Oh, Seung-Ho (Dept. of Biology Yeungnam University)
Choi, Gang-Won (Dept. of Biology Yeungnam University)
Publication Information
Korean Journal of Environment and Ecology / v.24, no.1, 2010 , pp. 1-13 More about this Journal
Abstract
A biological assessment of water quality was carried out in Unmunsan County Park from November 2007 to September 2008. The benthic macroinvertebrates collected from the surveyed sites were composed of 140 species, 106 genera, 61 families, 13 orders, 5 classes and 4 phyla. The dominant species in all the survey areas was Goerodes KUa of Trichoptera. The dominance index(DI) showed the highest as 0.553 at site 2 and the lowest as 0.354 at site 7. The species diversity index(H') showed the highest as 2.18 at site 7 and the lowest as 1.75 at site 2. Ecological score of benthic macroinvertebrate(ESB) showed the highest as 85 at site 4 and site 7 and the lowest as 51 at site 5. As a result, the areas 4 and 7 needed to be designated as the highest protection area, and the area 5 as the protection area. Besides, the water quality, based on the ecological indicators of benthic macroinvertebrate community, turned out to be oligosaprobic in the whole survey areas.
Keywords
COMMUNITY ANALYSIS; ESB; AQUATIC INSECT; UPPER STREAM OF UNMUNSAN;
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