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

  • 제51권2호
  • /
  • Pages.227-234
  • /
  • 2015
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  • 2671-9940(pISSN)
  • /
  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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표지방류조사에 의한 참홍어 (Beringraja pulchra)의 이동 및 성장률

Migration and growth rate of Mottled skate, Beringraja pulchra by the tagging release program in the Yellow Sea, Korea

  • 임양재 (국립수산과학원 서해수산연구소 자원환경과) ;
  • 조현수 (군산대학교 해양생산학과)
  • Im, Yang-Jae (Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, NFRDI) ;
  • Jo, Hyun-Su (Department of Marine Science & Production, Kunsan National University)
  • 투고 : 2015.05.05
  • 심사 : 2015.05.29
  • 발행 : 2015.05.31
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초록

To obtain geographical range and growth-kinetics parameters of mottled sake (Beringraja pulchra) populations in the Yellow Sea, three mark-recapture experiments were carried out. Overall, 991 tagged individuals were released, and 4.1% of them were recaptured with the mean release period of 339 d (range, 8-1,420 d) and the mean growth rate of $1.4cm\;mon^{-1}$ (female, $1.5cm\;mon^{-1}$; male $1.3cm\;mon^{-1}$). In the first experiment, 667 individuals were released at Heuksan Island from April to June, 2007-2009, and 30 individuals were recaptured mainly at the north and the north-east coasts of the island, indicating absence of migration to the south of the island. In the second experiment, 323 individuals were released at several fishing grounds scattered in the Yellow Sea in 2010-2013, and 11 individuals were recaptured at points deviated to all directions from the releasing points. As the last, one individual was released with pop-up satellite archival tag at a costal point ($34^{\circ}37.2$'N, $124^{\circ}59.3$'E) off Hong Island on May 21, 2010. The tagged individual migrated to a north-east location ($35^{\circ}50.4$'N, $126^{\circ}03.6$'E) of Eocheong Island by Aug. 25, 2010. The data archived for the three months in the tag indicated that the migration path had depths of 48-80 m and temperature of $12.6-14.4^{\circ}C$. The results indicated that mottled sake populations had a localized habitat ranges at the north of Heuksan Island and the west of Hong Island while growing at the rate of $1.4cm\;mon^{-1}$.

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