Stocking effectiveness of red sea bream, Pagrus major, in Kagoshima Bay, Japan
Stocking effectiveness of red sea bream, Pagrus major, in Kagoshima Bay, Japan
复制标题
日本鹿儿岛湾红真鲷的放养效果
DOI：
10.2331/fishsci.68.sup1_904
复制
发表时间：
2002
影响因子：
1.9
通讯作者：
Hirotoshi Shishidou
中科院分区：
文献类型：
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作者：
Hirotoshi Shishidou
1974年，鹿儿岛湾的红鲷主要种群增加尝试开始于后湾地区。该项目已发展成为一个大规模的行动，自1981年以来，已在整个海湾释放了100多万只幼鱼。1976年，该海湾的红鲷商业捕捞量暂时下降到71吨，但随着项目的进展，1991年又恢复到213吨。通过鱼市调查，对该湾真鲷养殖效果进行了评价。调查主要在鹿儿岛鱼市进行，大约每周两次，在海湾捕捞的80%以上的红鲷都在那里上岸。根据鳃间表皮的畸形程度，将真鲷分为野生和放流两类。鹿儿岛海水养殖协会养殖的具有IE畸形的鱼（DIE鱼）的出现率在80%以上。1989 ~ 2000年调查鱼类中DIE鱼的混合率在15.3%~ 73.5%之间。1990年，即释放9年后，释放的回收率估计为8.8%。着陆现金价值总额与不包括人员和设施的种子费用的比率估计为6.99。
Red sea bream Pagrus major stock enhancement attempts in Kagoshima Bay were started in the back bay area in 1974. The project has developed into a large-scale operation, and over one million juveniles have been released in the entire bay since 1981. The commercial catch of red sea bream in this bay had decreased temporarily to 71 tons in 1976, but recovered as the project progressed to 213 tons in 1991. Stocking effectiveness of red sea bream in this bay is evaluated by a fish market census. The census has been mainly conducted at Kagoshima Fish Market about twice a week, where more than 80% of red sea bream fished in the bay are landed. Red sea bream were classified into wild or released individuals by the deformity of the inter-nostril epidermis (IE's). Appearance rates of the fish which have the deformity of IE's (DIE fish) reared in Kagoshima Mariculture Society are more than 80%. The mixture rate of DIE fish in fishes investigated were between 15.3% and 73.5% from 1989 to 2000. The recapture rate of releases in 1990, 9 years after they were released, was estimated to be 8.8%. The ratio of the total landing cash value to the cost of seeds excluding personnel and facilities was estimated to be 6.99.