Method for Marking on Scales of Juvenile Black Rockfish by Immersion in Three Chemicals

세 화학 물질, Oxytetracycline hydrochloride, Alizarin red S 및 Calcein의 침지 처리에 의한 조피볼락 치어의 비늘 표지

  • 노충환 (한국해양연구소 해양생물자원개발연구센터) ;
  • 최희정 (한국해양연구소 해양생물자원개발연구센터) ;
  • 박용주 (한국해양연구소 해양생물자원개발연구센터) ;
  • 홍경표 (한국해양연구소 해양생물자원개발연구센터) ;
  • 박철원 (한국해양연구소 해양생물자원개발연구센터) ;
  • 명정구 (한국해양연구소 해양생물자원개발연구센터)
  • Published : 1999.09.01

Abstract

In this study, we evaluated the efficiency of chemical marking of black rockfish scales by immersion in oxytetracycline hydrochloride (OTC, 500 ppm), alizarin red S (AR, 250 ppm) and calcein (CARL, 250 ppm) diluted rearing water. Immersion treatment of chemicals had no effects on both mortality and growth of black rockfish. Marking sucess was 100% in all treatment durations (24, 48 and 72 hours) with three chemicals and marking quality was higher in 48 and 72 hours than 24 hours treatment. Marking retention rates at 24 weeks after treatment were 100% in OTC and CAL treated group, but marking quality was higher in CAL treated group (brilliant 92%, bright 8% and dim 0%) than in OTC treated group (brilliant 4%, bright 70% and dim 26%). AR treated group had lower marking retention rates and marking quality than OTC and CAL treated group. As a results, immersion treatment with OTC and CAL was effective in marking scales of black rockfish and practical in releasing program and other studies requires same rearing environment.

Keywords

References

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