Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Feeding Habits of Daggertooth Pike Conger Muraenesox cinereus in the Coastal Water off Goseong, Korea

경남 고성 주변해역에서 출현하는 갯장어(Muraenesox cinereus)의 식성

  • An, Young-Su (The Training Ship Management Center, Gyeongsang National University) ;
  • Park, Joo-Myun (Division of Marine Technology, Chonnam National University) ;
  • Kim, Hyeon-Ji (Department of Marine Biology & Aquaculture, Gyeongsang National University) ;
  • Baeck, Gun-Wook (Department of Marine Biology & Aquaculture, Gyeongsang National University)
  • 안영수 (경상대학교 실습선 운영관리 센터) ;
  • 박주면 (전남대학교 해양기술학부) ;
  • 김현지 (경상대학교 해양생명과학과) ;
  • 백근욱 (경상대학교 해양생명과학과)
  • Received : 2011.11.16
  • Accepted : 2012.02.02
  • Published : 2012.02.29
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Abstract

The feeding habits of daggertooth pike conger Muraenesox cinereus were studied using 380 specimens collected in the coastal waters off Goseong, Korea, from June to September, 2011. The M. cinereus ranged from 10.0-23.7 cm in anal length (AL). M. cinereus is a piscivore that consumes mainly fish. Engraulis japonicus was the preferred prey, but its diet also included small numbers of crabs, shrimps, cephalopods, and bivalves. The feeding strategy graphical method revealed that M. cinereus is a specialized feeder with a narrow niche width. All size classes of M. cinereus consumed fish and M. cinereus did not show significant ontogenetic changes in feeding habits. The diet overlap index between size classes was >0.96, indicating high diet similarities. The prey size increased significantly with M. cinereus size.

Keywords

References

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