Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on species composition and bycatch status of fishes by a three-side fyke net fisheries in Asanho Lake and Chungjuho Lake

아산호와 충주호의 삼각망에 의한 어획물 종 조성과 혼획 실태 연구

  • Min Ah HEO (Korea Institute of Fisheries and Ocean Engineering) ;
  • Heui Chen AN (Korea Institute of Fisheries and Ocean Engineering) ;
  • Wan Ok LEE (Korea Institute of Fisheries and Ocean Engineering) ;
  • Yong Beam PYEON (Korea Institute of Fisheries and Ocean Engineering) ;
  • Seong Hun KIM (Department of Marine Production System Management, Pukyong National University)
  • 허민아 (한국수산해양공학연구소) ;
  • 안희춘 (한국수산해양공학연구소) ;
  • 이완옥 (한국수산해양공학연구소) ;
  • 편용범 (한국수산해양공학연구소) ;
  • 김성훈 (부경대학교 해양생산시스템관리학부)
  • Received : 2023.07.06
  • Accepted : 2023.08.25
  • Published : 2023.08.31
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Abstract

This study investigated the species composition and bycatch status of fishes by fyke net between June and November 2020 in Asanho lake and Chungjuho lake. During the survey period, the catches in Asanho lake were identified as 2,931 individuals of 16 species from a total of six families and in Chungjuho lake were identified as 1,645 individuals of 14 species from a total of eight families. The dominant species in Asanho lake was Erythroculter erythropterus which accounted for 59.6% of the the total number of individuals and 40.5% of the total biomass caught. The dominant species in Chungjuho lake was Lepomis macrochirus which accounted for 48.2% of the the total number of individuals and Erythroculter erythropterus which accounted for 60.2% of the total biomass caught. The bycatch rates of non-commercial species in Asanho lake and Chungjuho lake were 77.0% and 82.6%, respectively. As a result of analyzing the frequency distribution of the total length of Carassius auratus and Siniperca scherzeri, which were the dominant species among commercial species, the bycatch rate of small individuals was 87.1%, and 42.7%, respectively.

Keywords

Acknowledgement

본 연구는 해양수산부의 재원으로 해양수산과학기술진흥원의 어업현장의 현안해결 지원사업의 지원을 받아 연구되었습니다(1525011389).

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