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Feeding Habits of Chub Mackerel (Scomber japonicus) in the South Sea of Korea

남해에 출현하는 고등어 (Scomber japonicus)의 식성

  • Yoon, Seong-Jong (South Sea Regional Fisheries Institute, NFRDI) ;
  • Kim, Dae-Hyun (South Sea Regional Fisheries Institute, NFRDI) ;
  • Baeck, Gun-Wook (Faculty of Marine Technology, Chonnam National University) ;
  • Kim, Jae-Won (Department of Marine Bio-resources, Gangwon Provincial University)
  • 윤성종 (국립수산과학원 남해수산연구소) ;
  • 김대현 (국립수산과학원 남해수산연구소) ;
  • 백근욱 (전남대학교 해양기술학부) ;
  • 김재원 (강원도립대학 해양생물자원개발과)
  • Published : 2008.02.29

Abstract

The feeding habits of chub mackerel (Scomber japonicus) were studied based on an examination of the stomach contents of 512 specimens collected between November 2005 and October 2006 in the South Sea of Korea. The specimens ranged in fork length (FL) from 23.4-37.5 cm. Chub mackerel is a piscivore and consumes mainly Teleosts such as Engraulis japonicus. Its diet also includes amphipods, crabs, Euphausia, chaetognaths and shrimp. Smaller individuals (<26 cm FL) consume mainly crabs. The proportion of these prey items decreases with increasing fish size, and this decrease paralleles the increased consumption of fish. The prey size increases with S. japonicus size.

Keywords

References

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