| Title |
Altitudinal Distribution Aspect of Benthic Macroinvertebrates in a Mountain Stream of Seoraksan |
| Authors |
손세환 ( Se Hwan Son ) ; 김진영 ( Jin Young Kim ) ; 조재익 ( Jae Ick Jo ) ; 공동수 ( Dong Soo Kong ) |
| Keywords |
Altitudinal distribution; Benthic macroinvertebrate; Functional feeding group; Mountain stream |
| Abstract |
This study was performed to find out the distribution aspect of benthic macroinvertebrates according to altitude in a mountain stream (a main stream: Buk stream, a tributary: Hangye stream) of Seoraksan. The survey was conducted from August to November in 2010. All survey sites were very sound because the mountain was being maintained as a protection area of the national park. Water quality and the composition of substrata were similar in all sites. Benthic macroinvertebrates of 3 phyla, 4 classes, 9 orders and 84 species occurred in the stream. Along with the decline of altitude, shredders of the functional feeding groups (FFGs) decreased, while collector filterers increased. In particular, collector filterers increased sharply at the altitude of 600~500 m (S.E.L.). Benthic macroinvertebrates showed low similarity between the uppermost site and the lower sites. Altitude appeared to be a significant factor that influence the structure and distribution of benthic macroinvertebrate community. |