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http://dx.doi.org/10.3741/JKWRA.2005.38.9.771

An Evaluation of Fish Habitat Conditions due to the Construction of Youngchun Dam in the Gumbo River  

Park, Bong-Jin (Korea Water Resources Corporation)
Sung, Young-Du (Korea Water Resources Corporation)
Jung, Kwan-Sue (Dept. of Civil Engineering, ChungNam National University)
Publication Information
Journal of Korea Water Resources Association / v.38, no.9, 2005 , pp. 771-778 More about this Journal
Abstract
In this study, flow duration analysis was conducted at the Gumbo stage gauging station due to construction of the Youngchun dam. The flow duration characteristics were $10.49\;m^3/s$ of drought flow, $13.30\;m^3/s$. of low flow, $15.65\;m^3/s$ of normal flow, and $25.00\;m^3/s$ abundant flow before construction of Youngchun dam. But after construction of Youngchun dam, the flow duration characteristics were $2.07\;m^^3/s,\;2.89\;m^3/s,\;4.0\;m^3/s,\;9.36\;m^3/s$ and they had been deteriorated. Applying the Physical Habitat Simulation Model by Instream Flow Incremental Methodology, the Weighted Usable Area(WUA)-Discharge Curve was developed for Zacco Platypus according to the growth stages. Using the WUA-Discharge Curve, the WUA Duration Curve was developed with exceedance probability of daily flow and evaluated fish habitat conditions due to the construction of Youngchun dam. As an evaluation result, the WUA was reduced and fish habitat environment was deteriorated due to the construction of Youngchun dam during the spawning and growth period of Zacco Platypus. However the exceedence probability of the $90\;\%$, irrigation water supply from the Youngchun dam improved flow duration characteristics and Weighted Usable Area as well as fish habitat.
Keywords
Flow Duration Analysis; Instream Flow Incremental Methodology(IFIM); Physical Habitat Simulation Model(PHABSIM); Weighted Usable Area(WUA); WUA-Discharge Curve; WUA Duration Curve; Fish Habitat Environment Evaluation;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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