Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Survival, Hematological Characteristics, Hemocyte Mortality and Histological Changes of Korean Rockfish Sebastes schlegeli Held in Live Fish Containers

활어 수송용 컨테이너에 수용된 조피볼락(Sebastes schlegeli)의 생존율, 혈액성상, 혈구 사멸률 및 조직학적 변화

  • Yang, Sung Jin (Aquaculture Management Division, National Institute of Fisheries Science) ;
  • Jun, Je-Cheon (Aquaculture Management Division, National Institute of Fisheries Science) ;
  • Min, Byung Hwa (Aquaculture Industry Research Division, East Sea Fisheries Research Institute) ;
  • Park, Noh Back (Aquaculture Management Division, National Institute of Fisheries Science) ;
  • Kang, Hee Woong (Aquaculture Management Division, National Institute of Fisheries Science)
  • 양성진 (국립수산과학원 양식관리과) ;
  • 전제천 (국립수산과학원 양식관리과) ;
  • 민병화 (동해수산연구소 양식산업과) ;
  • 박노백 (국립수산과학원 양식관리과) ;
  • 강희웅 (국립수산과학원 양식관리과)
  • Received : 2018.06.05
  • Accepted : 2018.07.16
  • Published : 2018.08.31
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Abstract

This study investigated the survival rates and physiological responses of Korean rockfish, Sebastes schlegeli, in live fish containers ($8^{\circ}C$, 33 psu) for 18 days. The survival rate was 99% and 97% in the control and experimental groups, respectively. Hematocrit and hemoglobin did not differ significantly between the control and experimental groups. Glucose and cortisol rose immediately on the first day of containment, but both gradually normalized. Aspartate aminotransferase and alanine aminotransferase did not differ significantly between the two groups after recovery. $NH_3$ continued to rise after the first day, but decreased to a level not significantly different from that of the control group during the recovery period. Plasma ions and osmolality did not change abnormally. The hemocyte population was not significantly different from that of the control. The ratios of apoptotic and necrotic cells indicated no specific variation in hemocyte viability. The histological changes in the skin and gills were not significantly different from those seen in the control. The experimental data obtained in this study suggest that live fish containers may be used to transport Korean rockfish without significantly affecting their physiology or survival.

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