Bioassessment and quality classification of Balekhloo River base on Biological index (fish fauna)
Balekhloo River is one of the main branches of Garasoo River in Ardebil and provides water for Yamchi Dam. Importance of this dam providewater for drinking agriculture and drinking for Ardebil and Sarein Cities. in according to different pollutant source like residential, industrial and agricultural and hot spring, bioassessment is essential for conserving of bio life in this river.
this study is in view of biological assessment based on population and species of fish in Balekhloo River in five stations in the two seasons two seasons (low water and high water) in 2010-2011. In this study were fish sampled by Electro shocker and physical and chemical parameters were measured simultaneously.
in this study 8 spaces from 3 order were identified most of which were of Cyprinidae Cobitidae .Shannon index result varied different between 0(station3)-1.33(station5) in stations.
The result of this research show that Shannon index for assessment of river results of physicochemical assessment result of Taxa richness and Shannon indexes. Finally by comparison of physical, chemical and biological parameters, of Balekhloo Rivers water quality was classified into three region low(4and5 stations), moderate(1 and2 stations) and high pollution(station3).
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