Korean Journal of Ichthyology (한국어류학회지)

The Ichthyological Society of Korea (한국어류학회)
권호 표지

Feeding Habits of Bluefin Searobin (Chelidonichthys spinosus) in the Coastal Waters off Busan

부산 주변해역에서 출현하는 성대 (Chelidonichthys spinosus)의 식성

  • Huh, Sung-Hoi (Department of Oceanography of Ocean Science, Pukyong National University) ;
  • Park, Joo Myun (Department of Oceanography of Ocean Science, Pukyong National University) ;
  • Baeck, Gun Wook (Faculty of Marine Technology, Chonnam National University)
  • 허성회 (부경대학교 해양학과) ;
  • 박주면 (부경대학교 해양학과) ;
  • 백근욱 (전남대학교 해양기술학부)
  • Received : 2007.01.10
  • Accepted : 2007.03.12
  • Published : 2007.03.31
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Abstract

The feeding habits of bluefin searobin (Chelidonichthys spinosus) were studied based on the examination of stomach contents of 646 specimens collected from January 2005 to December 2005 in the coastal waters off Busan, Korea. The size of C. spinosus ranged from 14.0 to 38.9 cm in standard length (SL). C. spinosus mainly consumed shrimps such as Solenocera melantho, Leptochela sydniesis and Trachysalambria curvirostris. Its diet also included crabs and fishes. Smaller individuals (15~25 cm SL) consumed small shrimps such as L. sydniesis, crabs and fishes. The portion of these prey items decreased with increasing fish size, and this decrease was paralleled with increased consumption of lager shrimps such as S. melantho and Trachysalambria curvirostris. The prey size increased with the increase of fish size.

2005년 1월에서 12월까지 부산 주변해역에서 채집한 출현하는 성대(Chelidonichthys spinosus) 646개체의 위 내용물을 분석하였다. 성대의 주 먹이생물은 대롱수염새우 (Solenocera melantho), 둥근돗대기새우(Leptochela sydniesis), 꽃새우(Trachthysalambria curvirostris) 같은 새우류(Macrura)였으며, 게류(Brachyura)와 어류(Pisces) 등도 섭이하였다. 체장 25cm 이하의 비교적 작은 개체는 둥근돗대기새우, 게류, 어류 등을 주로 섭이하였고, 25 cm 이상의 큰 개체는 대롱수염새우, 꽃새우 같은 큰 크기의 새우류를 주로 섭이하였다. 성대의 먹이생물 크기는 성대의 체장이 증가함에 따라 증가하는 경향을 보였다.

Keywords

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