• Title/Summary/Keyword: Gadoek-do

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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;Kim, Hyeon Ji;Baeck, Gun Wook;Ye, Sang Jin;Huh, Sung Hoi
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.51 no.2
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    • pp.265-271
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    • 2015
  • 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.