泥东风螺增殖放流跟踪调查及效果分析  

Tracking survey after enhancement and releasing of Babylonia lutosa and its effects analysis

作　　者：叶泉土[1] 刘勇[1] 曾志南[1] 蔡建堤[1] 

机构地区：[1]福建省水产研究所,福建厦门361013

出　　处：《福建水产》2015年第2期140-147,共8页Journal of Fujian Fisheries

基　　金：国家海洋公益性行业科研专项(201205021-01);现代农业产业技术体系建设专项(nycytx-47);国家科技基础条件平台建设项目(水产种质资源平台)

摘　　要：2012—2014年,采用笼壶作业渔船定点调查和生产性调查相结合方法对福建省连江县黄岐湾海域泥东风螺增殖放流效果进行了初步评估。结果表明:2014年6月定点调查捕获的泥东风螺重量较2012年(放流前)增加25.1倍;2014年生产性调查捕获的泥东风螺重量(107.84 kg)较2012年增加2.8倍;单日螺重量(2.51 kg/d)增加2.7倍;单笼螺重量(120.50 g/笼)增加2.4倍。2013年和2014年捕获的泥东风螺平均体重分别比2012年(放流前)下降了73.98%和67.45%,这说明了放流海区新的泥东风螺补充群体已形成并初显成效,已有部分小螺加入了捕捞群体。通过两年增殖放流,泥东风螺资源恢复已取得较为明显效果。Combined with point - survey and productive survey by pot fisheries in 2012-2014, the stock enhancement effect of Babylonia lutosa in Huangqi Bay, Lianjiang county, Fujian province, was studied. The yield of Babylonia lutosa in point - survey by pot fisheries in June 2014 increased 25.1 times than those in 2012 （before releasing） ; by productive survey, the yield （107.84 kg）, the catch per day （2. 51 kg） and the catch per pot （ 120. 5 g） of Babylonia lutosa in 2014 increased 2. 8 times, 2. 7 times and 2. 4 times than those in 2012 （before releasing）; the mean weight of Babylonia lutosa caught in 2013 and 2014 reduced 73.98% and 67.45% than those in 2012 （before releasing）, and the formation of recruit population has been occurred in the releasing area, some small snails has been added to fishing population. By the two years of stock enhancement, the recovery of Babylonia lutosa resource has been significant in effect .

关 键 词：泥东风螺 增殖放流 跟踪调查 效果 

分 类 号：S963[农业科学—水产养殖]