欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了探明南海北部虾拖网副渔获的种类组成、优势种类和幼鱼比例等情况，2012年8月1～5日作者于湛江近海进行了虾拖网副渔获调查。结果表明：湛江近海虾拖网副渔获种类极多，副渔获物与虾类的质量比为3．9：1；副渔获物的主要种类为蟹类和鱼类；蟹类副渔获物的优势种类分别为红星梭子蟹（Portunussanguinolentus）、三疣梭子蟹（Portunustrituberculatus）和远海梭子蟹（Portunus pelagicus），其相对重要性（IRI）分别为7558．72、6540．72和2826．41；鱼类优势副渔获物的种类分别为褐斑三线舌鳎（Cynoglossus trigrammus）、少鳞鱚（Sillagojaponica）、多齿蛇鲻（Saurida tumbil）和六带石斑鱼 （Epinephelus sexfasciatus）,其IRI分别为3158．94、1755．57、1294．44和1058．46；副渔获物的幼鱼比极高。最后，作者结合相关研究，对如何从技术层面解决南海区虾拖网严重的副渔获问题进行了探讨，以促进南海区虾拖网渔业的可持续发展。
英文摘要：
Fishery surveys were conducted in coastal sea of Zhanjiang, between August 1 st and 5th, 2012, to obtain the by-catch composition, dominant species and the percentage of the unmatured fish in shrimp beam trawl fishery. The result indicated that the by-catch species was quite a few, the weight of by-catch to shrimp was about 3.9 ： 1; the dominant by-catch species were crab and fish; the dominant by-catch species of crab were Portunus trituberculatus, Portunus sanguinolentus and Portunus pelagicus, and their IRI were 7558.72, 6540.72 and 2826.41, respectively; the dominant by-catch species of fish were Cynoglossus trigrammus, Sillago japonica, Saurida tumbil and Epinephelus sexfasciatus, and their IRI were 3158.94, 1755.57, 1294.44 and 1058.46, respectively; the percentage of the unmatured fish was very high. Finally, the technological way to solve the serious problem of by-catch in shrimp beam trawl fishery of the south sea of China was discussed.
同期刊论文项目
同项目期刊论文
期刊信息
位置：