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비단가리비, Chlamys farreri 수하양식에서 채롱의 망목 및 재질에 따른 성장과 생존

Effects of Mesh size and Material of Cages on Growth and Survival rate of the Scallop (Chlamys farreri Jones & Preston, 1904) cultured in Hanging culture in the West coast of Korea

  • 투고 : 2012.06.02
  • 심사 : 2012.06.16
  • 발행 : 2012.06.30

초록

2005년 9월부터 2006년 10월까지 충남 태안군 안면읍 내파수도 지선의 수하식 양식장에서 비단가리비 치패 (평균 각고 $38.6{\pm}6.8mm$, 전중량 $7.2{\pm}4.9g$) 를 채롱의 망목과 재질에 따른 성장과 생존율을 연구하였다. 실험에 사용한 채롱의 망목은 1 cm와 2 cm, 재질은 경심망과 플라스틱의 두 종류였으며, 채롱 당 수용밀도는 동일하게 30마리로 하였다. 실험을 시작하여 13개월이 경과한 후 평균 각고는 69.7-73.9 mm였고, 전중량은 36.1-47.0 g으로 나타났다. 생존율은 93-100%로 높게 나타났으며, 비단가리비의 성장률은 채롱의 망목과 상관관계를 가지고 있었다. 채롱의 재질에 따른 성장률은 2005년 9월부터 2006년 6월까지는 경심망 채롱보다 플라스틱 채롱에서 빠르게 나타났으나, 2006년 6월부터 10월까지는 부착생물에 의한 먹이섭취 방해로 플라스틱 채롱에서 경심망 채롱보다 느리게 나타났다.

We studied that the effects of mesh size and material of cages on the growth of C. farreri (initial shell height 38.6 mm and shell total weight 7.2 g) held in suspension cage from September 2005 to October 2006. The experiment was performed with two mesh sizes (1 cm and 2 cm) and two materials (net and plastic) of cages in same densities. After 13 months from culture beginning, ranges of shell height and total weight were from 69.7 mm to 73.9 mm and from 36.1 g to 47.0 g, respectively. The survival rate was from 93% to 100%, respectively. The growth rates of the scallop were positively correlated with the mesh size. In the growth rate according to culture material, the growth of scallop in the plastic cage was faster than that in the net cage from September 2005 to June 2006, but the growth in the plastic was slower than that in the net cage for obstruction by attaching organisms from June to October 2006.

키워드

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