| 闽南海区休渔前后张网作业渔获物组成比较分析 |
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| 引用本文： | 刘勇,洪明进,叶泉土.闽南海区休渔前后张网作业渔获物组成比较分析[J].福建水产,2008(4). |
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| 作者姓名： | 刘勇 洪明进 叶泉土 |
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| 作者单位： | 福建省水产研究所,福建,厦门,361012 |
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| 摘 要： | 本文主要根据2008年闽南海区张网作业渔业资源监测资料，对休渔前后（4月和8月）张网作业渔获物组成进行比较分析。结果表明：2008年休渔前后都以捕经济种类幼鱼为主。4月带鱼、二长棘鲷、刺鲳、鲐鱼、中华管鞭虾等主要经济种类渔获重量占总渔获物重量69．6％，其中带鱼幼鱼数量最多，占总渔获数量的26．2％（每网渔获尾数744ind），居第一位；且个体极小，基本上全为幼鱼，平均体重8．1g。8月带鱼、二长棘鲷、短尾大眼鲷、叫姑鱼、白姑鱼、须赤虾等主要经济种类渔获重量占总渔获物重量50．9％。带鱼数量明显减少（每网渔获尾数226ind），但个体增大，肛长140mm以上占63．6％，平均体重54．5g，比4月增加46．4g。并结合2004、2007年有关资料，较为详细说明休渔前（4月）张网作业对近岸经济幼鱼、幼体损害比休渔结束后（8月）严重，通过休渔对带鱼等经济种类幼鱼资源起了一定保护作用。
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| 关 键 词： | 闽南海区 张网作业 休渔前后 渔获物组成 |
Comparison of Swing Net Catch before and after Closed Fishing Seasons in Minnan Sea Waters |
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| LIU Yong,HONG Ming-jin,YE Quan-tu.Comparison of Swing Net Catch before and after Closed Fishing Seasons in Minnan Sea Waters[J].Journal of Fujian Fisheries,2008(4). |
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| Authors: | LIU Yong HONG Ming-jin YE Quan-tu |
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| Abstract: | Based on the survey data before and after closed fishing seasons(April and August) in Minnan sea waters in 2008,composition of catches by swing net fishery was analyzed.The results showed that: the young economic species were dominant in catches both before and after closed fishing seasons.In April,the main economic species such as hairtails(Trichiurus haumela),Parargyrops edita,Psenopsis anomala,Pneumatophorus japonicus,Solenocera crassicornis occupied 69.6% of weight in total catch.The juvenile amount of ... |
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| Keywords: | Minnan sea waters Swing net Before and after closed fishing seasons Composition of catch |
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