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http://dx.doi.org/10.3741/JKWRA.2009.42.6.481

Assessment of Riverine Health Condition and Estimation of Optimal Ecological Flowrate Considering Fish Habitat in downstream of Yongdam Dam  

Hur, Jun-Wook (River Environment Team, Water Resources and Environmental Research Center, K-water Research Institute, Korea Water Resources Corporation)
Kim, Jeong-Kon (River Environment Team, Water Resources and Environmental Research Center, K-water Research Institute, Korea Water Resources Corporation)
Publication Information
Journal of Korea Water Resources Association / v.42, no.6, 2009 , pp. 481-491 More about this Journal
Abstract
In this study, a comprehensive field monitoring was conducted to understand habitat conditions of fish species in the upper Geum river. Based on the monitoring data, riverine health conditions such as composition ratio of fish species, richness and dominance indexes, bio-diversity (dominance index, diversity, evenness and richness), and index of biological integrity were assessed, and optimal ecological flowrates were estimated using the habitat suitability indexes established for three fish species Coreoleuciscus splendidus, Zacco platypus and Pseudopungtungia nigra selected as icon species using the physical habitat simulation system (PHABSIM). The total number of species sampled was 20 species, and two sensitive species of C. splendidus (22.4%) and Z. platypus (22.0%) dominated the fish community. The estimated IBI values ranged from 34 to 42 with average being 38 out of 50, rendering the site ecologically fair to good health conditions. An optimal ecological flowrate of 9.0 cms was recommended for the representative fish species at the site.
Keywords
fish habitat; health assessment; ecological flow;
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Times Cited By KSCI : 2  (Citation Analysis)
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