Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Feeding habits of ocellate spot skate, Okamejei kenojei in the coastal waters of Gadoek-do, Korea

가덕도 주변해역에 출현하는 홍어(Okamejei kenojei)의 식성

  • Jeong, Jae Mook (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, Gyeongsang National University) ;
  • Kim, Hyeon Ji (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, Gyeongsang National University) ;
  • Baeck, Gun Wook (Department of Seafood & Aquaculture Science/Institute of Marine Industry/Marine Bio-Education & Research Center, Gyeongsang National University) ;
  • Ye, Sang Jin (Korea Fisheries Resources Agency) ;
  • Huh, Sung Hoi (Department of Oceanography, Pukyong National University)
  • 정재묵 (경상대학교 해양식품생명의학과/해양산업연구소/해양생물교육연구센터) ;
  • 김현지 (경상대학교 해양식품생명의학과/해양산업연구소/해양생물교육연구센터) ;
  • 백근욱 (경상대학교 해양식품생명의학과/해양산업연구소/해양생물교육연구센터) ;
  • 예상진 (한국수산자원관리공단) ;
  • 허성회 (부경대학교 해양학과)
  • Received : 2015.05.11
  • Accepted : 2015.05.31
  • Published : 2015.05.31
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Abstract

The feeding habits of Okamejei kenojei were studied using 242 specimens collected from October 2010 to September 2011 in the coastal waters of Gadeok-do, Korea. O. kenojei was carnivorous feeder that consumed mainly shrimps, crabs, and fishes. Its diet also included small quantities of stomatods, cephalopods, amphipods. The size of O. kenojei ranged from 10.4 to 47.4 cm in total length (TL). O. kenojei showed ontogenetic dietary shift. <15.0, 15.0-19.9 cm size classes fed mainly on shrimps and amphipods. 20.0-24.9 cm size class fed mainly shrimps and crabs. Thereafter, shrimps and crabs were decreased with ontogenesis while fishes and cephalopods were increased. Increasing size, the mN/ST were constantly decreased, but mW/ST were constantly increased.

Keywords

References

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