Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Initial Adaptation of Released Black Sea Bream, Acanthopagrus schlegeli in Gamak Bay, Southern Coast in Korea

가막만 방류 감성돔 (Acanthopagrus schlegeli) 치어의 초기 적응

  • YOO Jin Hyung (Department of Aquaculture, Yosu National University) ;
  • HWANG Doo Jin (Department of Fisheries and Technology Yosu National University) ;
  • YOON Yang Ho (Department of Oceanography, Yogu National University) ;
  • JEONG Gwan Sic (Department of Aquaculture, Yosu National University) ;
  • GO Hyun Jeung (Aquaculture Research Center, Yosu National University)
  • Published : 2003.08.01
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Abstract

The reared fries of black sea bream, Acanthopagrus schlegeli were released in Gamak Bay and initial adaptation to the environment was evaluated. Thirty thousand fries were marked with magnetic tag, released and recaptured and its stomach content were analysed; the neighboring zooplankton, beuthic algae and other young fishes were investigated. The fries were released on July 30, 2001 in summer season. Water temperature of surface and bottom were $24^{\circ}C\;and\;21^{\circ}C,$ respectively. $Chlorophyll\;\alpha$ content was 4.5 ${\mu}g/L$ with high primary production. Salinity was $32.0-32.5\%_{\circ}.$ Water depth of releasing site was about 30 m. The sea jungle was formed at the first point of releasing and it kept the fries for about 3 days in the bay with plenty of food organisms within 5 m depth. Stomach analysis of the fries revealed that real feeding started from the 15 days after releasing and full feeding took place after the tenth day.

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