| Title |
Aquatic Ecosystem Health Assessment in Middle Reach of Suyoung River using Characteristics of Benthic Macroinvertebrate and Fish Fauna |
| Authors |
전대영 ( Dae Young Jeon ) ; 이소림 ( So Lim Lee ) ; 손정원 ( Jung Won Son ) ; 차영욱 ( Young Uk Cha ) ; 권기원 ( Ki Won Kwon ) ; 유평종 ( Pyung Jong Yoo ) |
| Keywords |
Benthic macroinvertebrates; Fish fauna; Index of Biological Integrity; IBI; Korean Saprobic Index; KSI |
| Abstract |
Bentic macroinvertebrate and fish fauna were investigated from September 2008 to October 2009 in the middle reach of the Suyoung river in Busan. During the survey period benthic macroinvertebrates were collected total 35 species at the three sites (Hanmul-gyo, Dongcheon-gyo, Seokdae Jct.) of Suyoung river. At that sites, species diversity index was 1.9, 1.5, 1.6, dominance index was 0.75, 0.81, 0.86 and Korean Saprobic Index (KSI) was 1.8(B), 4.4(D), 4.4(D) on average, respectively. Dominant species was Caenis Kua, Chironomidae sp., at Hanmul-gyo site and Limnodrilus gotoi, Chironomidae sp., at Dongcheon-gyo and Seokdae Jct. sites. Fish fauna was also investigated at the two sites (Hanmul-gyo and Seokdae Jct.) of Suyoung river. Total caught fishes were 10 species 32 individuals in the first survey and 6 species 26 individuals in the second survey. Dominant species was Carassius auratus in the both surveys. Index of Biological Integrity (IBI) value was C grade at the Hanmul-gyo and D grade at the Seokdae Jct. |