文章摘要
蓝景阳.疏目底拖网[J].水产学报,1980,4(4):353~360
疏目底拖网
A MODIFIED LARGE--MESH TRAWL
  
DOI:
中文关键词: 
英文关键词: 
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作者单位
蓝景阳 上海市海洋渔业公司 
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中文摘要:
      东,黄海底拖网渔业的主要捕捞对象,大多具有垂直洄游或者栖息水层变动的习性。为了提高现有拖网渔轮的作业成绩,我们针对捕捞对象栖息水层较高的习性,设计了疏目拖网。在1977年12月至1978年7月期间,同原有网具作渔捞对比试验。试验结果表明,疏目拖网具有网口较高,阻力较小和产量较高等优点。
英文摘要:
      A Iarge mumber of fishes in the East China Sea have the behavior of verticalmigration. In attempting to increase the fishing efficiency, a large-mesh trawlhas been designed for catching the fish in the higher level above than the normaltrawl can reach. From December 1977 to July 1978, the large--mesh trawl has beentested in comparison with the normal trawl. The result indicates that the large-meshtrawl has some advantages, such as higher trawl net mouth, less resistance, morecatches, etc.
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