• 제목/요약/키워드: Releasing of fish fry

검색결과 1건 처리시간 0.017초

가막만 방류 감성돔 (Acanthopagrus schlegeli) 치어의 초기 적응 (Initial Adaptation of Released Black Sea Bream, Acanthopagrus schlegeli in Gamak Bay, Southern Coast in Korea)

  • 유진형;황두진;윤양호;정관식;고현정
    • 한국수산과학회지
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    • 제36권4호
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    • pp.365-371
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    • 2003
  • 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.