Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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Fish Fauna in the Seomjin River, Korea

섬진강의 어류상

  • Park, Se Kwon (Department of Biological Sciences, Seonam University) ;
  • Joo, Hyun Soo (Department of Biological Sciences, Seonam University)
  • Received : 2014.12.19
  • Accepted : 2015.08.03
  • Published : 2015.09.30
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Abstract

The fish fauna was investigated from 2010 and 2013 at main stream and tributaries in the Seomjin River which has no estuary dike. The collected fishes were identified into 37,751 individuals of 107 species of 81 genera belonging to 41 families. Among the collected fishes the primary freshwater fishes were 57 species (Relative Abundance: 53.3%), the secondary fishes were 10 species (RA: 9.3%) and the marine fishes were 40 species (RA: 37.4%). The dominant species was Zacco platypus (RA: 28.7%), and the subdominant species was Zacco koreanus (RA: 15.0%). The endemic species were 21 species (RA: 31.3%). The endangered fishes were Acheilognathus somjinensis (Level I), Lampetra reissneri (Level II) and Microphysogobio koreensis (Level II). The exotic species were Carassius cuvieri, Lepomis macrochirus and Micropterus salmoides. We supposed that Odontobutis interrupta in the Seomjin River is translocated species.

섬진강의 본류와 지류를 대상으로 2010년 5월부터 2013년 9월까지 어류상을 연구한 결과, 총 13목 41과 81속 107종 37,751개체가 확인되었다. 출현어류 중에서 1차 담수어류는 57종 (53.3%), 2차 담수어류는 10종 (9.3%), 해산어류는 40종 (37.4%)으로 확인되었다. 전체 우점종은 피라미 Zacco platypus (28.7%), 아우점종은 참갈겨니 Z. koreanus (15.0%)로 나타났다. 한국 고유종은 전체 21종 (31.3%)이 출현하였으며 보성강 수계에서 19종으로 다양하게 확인되었다. 환경부지정 멸종위기 야생동물 I급인 임실납자루 Acheilognathus somjinensis, II급인 다묵장어 Lampetra reissneri와 모래주사 Microphysogobio koreensis 등 3종이었다. 외래종은 모두 3종으로 떡붕어 Carassius cuvieri, 블루길 Lepomis macrochirus 및 베스 Micropterus salmoides였다. 얼록동사리 Odontobutis interrupta는 섬진강 수계에 이입되어 서식하는 것으로 추정되었다.

Keywords

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