Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Feeding Habits of Bluefin Searobin Chelidonichthys spinosus around Jeju Island

제주 주변 해역에 서식하는 성대 (Chelidonichthys spinosus)의 식성

  • 김종빈 (국립수산과학원 자원연구과) ;
  • 김정윤 (국립수산과학원 자원연구과) ;
  • 이동우 (국립수산과학원 자원연구과) ;
  • 최정화 (국립수산과학원 자원연구과)
  • Received : 2011.03.08
  • Accepted : 2011.08.16
  • Published : 2011.08.30
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Abstract

The feeding ecology of bluefin searobin Chelidonichthys spinosus around Jeju Island was examined. Specimens were caught every autumn from 2004 to 2007. The primary prey items of C. spinosus included fish, shrimp, and crabs. Chelidonichthys spinosus preyed upon a wide range of sub-pelagic crustacean groups(e.g., Leptochela gracilis, Leptochela sydniensis). This species was also an opportunistic feeder, exploiting the available prey groups in each area(i.e., L. gracilis in the South Sea and East China Sea groups and L. gracilis and L. sydniensis in the Yellow Sea group). The main prey group of this species changed from demersal shrimp to pelagic shrimp with prey environmental changes. Observed ontogenetic shifts in diet were relatively clear despite substantial overlap between the 10 cm and 20 cm C. spinosus groups.

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References

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