Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Species Composition and Behavioral Characteristics of Released Black Rockfish, Sebastes inermis in the Coastal Waters off Namhae Island, Korea

남해도 주변해역에서 서식하는 어류의 종조성 및 양식산 방류 볼락(Sebastes inermis)의 행동특성

  • An, Cheul-Min (Biotechnology Research Division, National Fisheries Research & Development Institute) ;
  • Kwak, Seok-Nam (Marine Eco-Technology Institute Co., Ltd.) ;
  • Park, Joo-Myun (Department of Oceanography, Pukyong National University) ;
  • Huh, Sung-Hoi (Department of Oceanography, Pukyong National University)
  • 안철민 (국립수산과학원 전략양식연구소 생명공학과) ;
  • 곽석남 (해양생태기술연구소) ;
  • 박주면 (부경대학교 해양학과) ;
  • 허성회 (부경대학교 해양학과)
  • Received : 2010.03.29
  • Accepted : 2010.06.16
  • Published : 2010.06.30
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Abstract

Seventeen fish species were counted in an underwater visual census, and the most common species, Sebastes inermis and Halichoeres poecilopterus, were released. More than 60% of the released S.inermis occurred near a fish farm 5 days after release, but they moved to a distant rocky area, and decreasing numbers were seen near the farm 90 days after release. In pots, a total of 722 individuals belonging to 43 species occurred, and released S.inermis dominated with 174 individuals recaptured during the study period. The other common fish species were Stephanolepis cirrhifer and Acanthopagrus schlegeli. The percentage of recapture was 0.23%, but declined to 0.12% at 90 days after release. The potential predators of released S.inermis included Lateolabrax japonicus and Sebastes schlegeli.

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References

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