闽南渔场桁杆虾拖网作业渔获种类组成
Species composition of catch by shrimp beam trawl in Minnan fishing ground
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摘要: 2010年1～5月和8～11月在闽南海区桁杆虾拖网作业渔船上每月采样一次,分析样品9批,样品数量15833个,累计重量79.66kg。对渔获物进行种类鉴定、组成分析,结果表明:闽南渔场桁杆虾拖网作业渔获种类共有62种,其中鱼类35种、虾类17种、蟹类4种、头足类4种、口足类2种;渔获物以虾类为主,占总渔获重量的69.85%、鱼类占17.09%、口足类占11.00%、头足类占1.94%、蟹类占0.11%。虾类渔获以哈氏仿对虾(Parapenaeopsis hardwickii)为主,占虾类渔获重量的比例为58.29%,主要出现在1～5月和10～11月,其次鹰爪虾(Trachypenaeus curvirostris),占29.13%,主要出现在8～9月。8月份渔获物中出现较多幼鱼,其中二长棘鲷(Parargyrops edita)幼鱼重量比例达13.70%。总体而言,桁杆虾拖网作业对资源利用比较合理。Abstract: 9 batchs of catch samples(the total weight was 79.66kg)，were collected from shrimp beam trawl from January to November(except forbidden fishing season) in 2010 in Minnan fishing ground.By species identification and catch sample analysis，the results showed that the total species of catches were 62 kinds，including 35 kinds of fishes，17 kinds of shrimps, 4 kinds of crabs，2 kinds of squillas and 4 kinds of cephalopod．Based on the weight proportion analyzing，shrimps accounted for 69.85 percentages，fishes17.09 percentages，crabs 0.11 percentages，squilla 11.00 percentages and cephalopod 1.94 percentages．
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