Change of Hematological Characteristic and Heavy Metal Concentration on Rockfish (Sebastes schlegeli) Rearing in the Copper Alloy Mesh

동합금 가두리 망 사육어류, 조피볼락(Sebastes schlegeli)의 혈액 성상과 중금속 축적률

  • Yang, Sung-Jin (Aquaculture Management Division, Aquaculture Research Institute, NFRDI) ;
  • Jun, Je-Cheon (Aquaculture Management Division, Aquaculture Research Institute, NFRDI) ;
  • Park, Jung-Jun (Aquaculture Management Division, Aquaculture Research Institute, NFRDI) ;
  • Myeong, Jeong-In (Aquaculture Management Division, Aquaculture Research Institute, NFRDI) ;
  • Shin, Yun-Kyung (Aquaculture Management Division, Aquaculture Research Institute, NFRDI)
  • 양성진 (국립수산과학원 전략양식연구소 양식관리과) ;
  • 전제천 (국립수산과학원 전략양식연구소 양식관리과) ;
  • 박정준 (국립수산과학원 전략양식연구소 양식관리과) ;
  • 명정인 (국립수산과학원 전략양식연구소 양식관리과) ;
  • 신윤경 (국립수산과학원 전략양식연구소 양식관리과)
  • Received : 2014.06.06
  • Accepted : 2014.08.24
  • Published : 2014.09.30

Abstract

The effect of substances discharged from copper alloy mesh on the survival rate, growth, and health status of Sebastes schlegeli was investigated. Survival rate of experimental group was 10% higher than control group. There was no significant difference in weight gain and SGR between control group and experiment group (P<0.05). Glucose concentration was lower in the experimental group than that in the control group. GOT and GPT contents did not show significant difference during experiment except for the early three months of experiment (P<0.05). Ammonia concentration had not significantly changed in the experimental group, but it had increased until four months of experiment and then decreased afterwards in the control group. TCHO had decreased in the experiment group compared with that of control group. Copper and zinc contents had increased as compared with those in the initial stage of experiment with no significant difference between experiment group and control group (P<0.05). Histological analysis for the liver revealed that liver tissues were not particularly different from those in control group. There were no significant differences in survival rate, growth, and hematological characteristic between control group and experiment group (P<0.05). Though copper and zinc were accumulated as compared with those during the initial stage of experiment, the levels were lower than permissible levels for copper and zinc. As a result, copper alloy mesh would not adversely affect on the survival rate, growth, and health status of fishes.

동합금 가두리망에 6개월간 사육한 조피볼락을 대상으로 동합금 가두리 망에서 유출되는 물질이 어류의 생존, 성장 및 건강도에 미치는 영향을 조사하였다. 대조구와 실험구간의 생존율과 성장률 그리고 혈액 성상은 유의한 차이가 없었으며(P<0.05), 간세포의 형태 및 간 조직 내에 존재하는 모세혈관과 담관의 구조가 특이적인 차이를 보이지 않았다. 구리와 아연 축적량은 실험 초기에 비해 증가하였지만 실험구와 대조구 간의 차이가 없었으며 허용기준치에 비해 매우 낮게 나타나 본 연구에 사용된 동합금망은 어류의 생존, 성장 및 건강도에 영향을 끼치지 않는 것으로 여겨진다.

Keywords

References

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