Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Community Analysis Based on Functional Feeding Groups of Benthic Macro Invertebrate in Wangpi-cheon

왕피천 저서성 대형무척추동물의 섭식기능군을 이용한 군집분석

  • Park, Young-Jun (Nature Conservation Research Division of NIER) ;
  • Lim, Heon-Myong (Nature Conservation Research Division of NIER) ;
  • Kim, Ki-Dong (Nature Conservation Research Division of NIER) ;
  • Cho, Young-Ho (Dept. of Biological Science Daejeon Univ.) ;
  • Nam, Sang-Ho (Dept. of Biological Science Daejeon Univ.) ;
  • Kwon, Oh-Seok (School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National Univ.)
  • 박영준 (국립환경과학원 자연자원연구과) ;
  • 임헌명 (국립환경과학원 자연자원연구과) ;
  • 김기동 (국립환경과학원 자연자원연구과) ;
  • 조영호 (대전대학교 생명과학과) ;
  • 남상호 (대전대학교 생명과학과) ;
  • 권오석 (경북대학교 농업생명과학대학 응용생명과학부)
  • Received : 2010.05.31
  • Accepted : 2010.10.23
  • Published : 2010.10.31
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Abstract

Community analysis based on functional feeding groups of benthic macro invertebrates at Wangpi-cheon was assessed with the result of four field survey from October, 2007 to May, 2008. A total 138 species of benthic macro invertebrates in 58 families, 16 orders, 6 classes, and 4 phyla were collected during the field surveys. The result of EPT index value showed high value of 61.59% and it means that the stream ecosystem of Wangpi-cheon is very clear and healthy. In this study the functional feeding groups in Wangpi-cheon were divided into two groups. First, Scrapers and Collectors-Gathering group which is normally dominant in midstream showed higher dominance in main stream than tributary. Second, shredders group showed higher dominance in tributary than main stream like as the general characteristics of upriver. With the result of cluster analysis based on the similarity index, the study areas could be grouped into a natural area(A group) and an artificial disturbance area(B group; site 8 and 11) where embankment, bank and levee had been built near by. And also, the natural area(A group) was classified into two groups which had the characteristic of main(site 1, 2, 3, 4 and 7) stream and tributary(site 5, 6, 9 and 10) respectively.

본 연구는 왕피천의 섭식기능군을 이용해 군집분석을 실시하기 위한 것으로 2007년 10월부터 2008년 5월까지 총 4회에 걸쳐 조사를 수행하고 그 결과를 분석하였다. 조사시기동안 출현한 저서성 대형무척추동물은 총 4문 6강 16목 58과 138종이었으며, EPT index 값은 61.59%로 매우 높게 나타나 왕피천의 하천생태계는 매우 청정하고 건강한 것으로 분석되었다. 왕피천의 하천지점별 섭식기능군을 살펴본 결과 긁어먹는 무리와 주워먹는 무리가 지류에 비해 우점하고 있는 일반적인 하천 중류의 특징을 보이는 그룹과 썰어먹는 무리가 본류에 비해 높은 비율을 차지하고 있는 상류 특성을 보이는 지류의 그룹인 두 개의 그룹으로 나뉘어졌다. 유사도 지수를 근거로 각 지점별 클러스터 분석을 실시해 본 결과, 자연 상태의 비교란 지역(A그룹)과 제방 및 보 등에 의한 인위적 교란지역(B그룹; 지점 8, 11)으로 그룹화 되었다. 또한 비교란 지역은 본류(지점 1, 2, 3, 4, 7) 및 지류(지점 5, 6, 9, 10)의 특성을 갖는 두개의 그룹으로 분류됨을 확인 할 수 있었다.

Keywords

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