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Effects of the Tagging methods on the Growth and Survival of Abalone Juvenile, Haliotis discus hannai

전복, Haliotis discus hannai 치패의 성장과 생존에 미치는 표지의 영향

  • Kim Bong Seok (Biotechnology research center and Aquaculture department National Fisheries Research & Development Institute) ;
  • Lee Yun Ho (Biotechnology research center and Aquaculture department National Fisheries Research & Development Institute) ;
  • Park Doo Won (Biotechnology research center and Aquaculture department National Fisheries Research & Development Institute)
  • 김봉석 (국립수산과학원 생명공학연구단) ;
  • 이윤호 (국립수산과학원 증식부) ;
  • 박두원 (국립수산과학원 생명공학연구단)
  • Published : 2002.05.01

Abstract

This study was carried out to investigate the optimum tagging method of the abalone juvenile, Haliotis discus hannai in indoor culture system from May 2000 to January2001. Tagging methods were shell drilling, copper-wire tagging at the respiratory pore and nut gluing on the shell. The attachment rates of the shell showed high in the 2- and 3 cm bolt-nut tagged groups, about over $89.5\%$, whereas shell drilling groups on the shell were about $18.5\%$. The internal coating rates tagged with bolt-nut were over $96.6\%$, while those tagged with copper wire were less than $17.1\%$. Growths in the all marked and tagged experimental groups comparing with control groups were not significantly different (p>0,05). Survivals in all tagging groups except shell drilling and nut gluing groups in the 5 cm abalone were over $95\%, Accordingly, all juvenile groups were not affected by the tagging methods in terms of the growth and survival on the abalones. Based on these results, the micro bolt-nut tagging was the most effective method in abalone.

전복 방류효과조사를 위한 효과적인 표지 개발을 위하여 치패에 알맞은 표지 탐색과 표지에 따른 성장과 생존율에 관하여 2000년 5월 25일부터 2001년 1월 27일까지 8개월간 조사하였다. 실험군 (결각군, 동선부착군, 볼트너트구조물부착군 그리고 너트접착군)별 표지부착률은 각장 2, 3cm 볼트너트부착군에서 89.9, $89.5\%$로 가장 높았고, 결각군이 $18.5\%$ 이하로 가장 낮게 식별되었다. 패각 내부에서 표지를 피복하여 표지의 안정성을 높이는 표지피복률은 각장 2, 3cm 볼트너트부착군은 각각 $100.0\%$, $96.6\%$로 나타난 반면, 동선부착군에서는 $17.1\%$ 이하로 나타났다. 각장 2, 3, 4와 5cm의 치패 크기에 따른 표지 실험군별 성장은 대조군와 유의한 차이를 보이지 않아 표지가 전복치패의 성장에 영향을 미치지 않았다. 생존율 역시 각장 2, 3, 4cm의 모든 실험군에서 $93.8\%$ 이상을 보였고, 대조군에 비해 유의한 차이를 보이지 않아 표지가 전복의 폐사에 미치는 영향은 없었다. 각장 5cm 실험군의 생존율은 대조군에 비해 각 실험구는 유의한 차이를 보였다. 이상의 결과에서 표지부착 및 피복률, 성장과 생존 등에서 우수한 결과를 보인 미세볼트너트표지를 부착한 각장 3cm실험군이 본 연구에서 가장 우수한 효과를 보였다.

Keywords

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