| Title |
Comparative Analysis on the Application of Biotic Indices for Environmental Assessment of a Polluted Stream (Jinwi Stream) |
| Authors |
오민우 ( Min Woo Oh ) ; 이옥민 ( Ok Min Lee ) ; 송호복 ( Ho Bok Song ) ; 박선진 ( Sun Jin Park ) ; 송미영 ( Mee Young Song ) ; 공동수 ( Dong Soo Kong ) |
| Keywords |
Benthic macroinvertebrates; Biotic index; Fish; Jinwi Stream; Periphytic diatoms |
| Abstract |
Jinwi Stream is considerably polluted. The urban development in a Jinwi Stream basin can make state of aquatic ecosystem worse. However, researches for aquatic ecosystems in Jinwi Stream are insufficient. In this study, biotic indices of periphytic diatoms (DAIpo and TDI), benthic macroinvertebrates (EPT, KSI and ESB) and fish (IBI) were compared with the annual water quality data. Benthic macroinvertebrates indices showed highly significant correlations with concentrations of organic materials and nutrients, while DAIpo, TDI and IBI showed low correlations with them. In particular, ESB can be considered as an useful indicator that reflects the degree of diversity and abundance of biotic community as well as water quality. In polluted and disturbed streams as Jinwi Stream, DAIpo, TDI and IBI appeared to be not available for evaluating and discriminating the water quality, although they have been known as good indices in general streams. |