Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Feeding Habits of the Redbanded Searobin Lepidotrigla guentheri in the Coastal Waters off Gori, Korea

고리 주변해역에서 출현하는 꼬마달재 (Lepidotrigla guentheri)의 식성

  • Baeck, Gun-Wook (Department of Marine Biology & Aquaculture / Institute of Marine Industry, College of Marine Science, Gyeongsang National University) ;
  • Huh, Sung-Hoi (Department of Oceanography, Pukyong National University) ;
  • Choi, Hee-Chan (Department of Oceanography, Pukyong National University) ;
  • Park, Joo-Myun (Division of Marine Technology, Chonnam National University)
  • 백근욱 (경상대학교 해양생명과학과/해양산업연구소) ;
  • 허성회 (부경대학교 해양학과) ;
  • 최희찬 (부경대학교 해양학과) ;
  • 박주면 (전남대학교 해양기술학부)
  • Received : 2011.05.05
  • Accepted : 2011.07.28
  • Published : 2011.08.30
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Abstract

The feeding habits of the redbanded searobin Lepidotrigla guentheri were studied using 186 specimens collected from September to November, 2006, in the coastal waters off Gori, Korea. The sizes of L. guentheri ranged from 7.1 to 16.7 cm total length(TL). L. guentheri is a bottom-feeding carnivore that consumes mainly shrimp, especially Leptochela sydniensis, amphipods, and crabs. Its diet also includes small quantities of stomatopods, mysids, cumaceans, euphausiids, polychaetes, and copepods. Our feeding-strategy graphical method reveled that L. guentheri is a specialized feeder, with a narrow niche width. L. guentheri mainly consumed shrimp of all size classes and did not show significant ontogenetic changes in feeding habits. Smaller individuals(7-11 cm TL) secondly consumed amphipods, with the portion of amphipods in the total diet decreasing as body size increased. Prey size increased significantly as the fish grew in size.

Keywords

References

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