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第二次世界大战以来,拖网渔业的迅速发展使世界虾渔获量成倍增加,1978年达1,474,176吨,比1950年(398,000吨)增加约3.7倍.与此同时,在世界范围内拖网损害幼鱼、稚鱼破坏水产资源的情况日趋严重.因而,这个问题越来越引起水产工作者的密切注意.现将世界一些捕虾船、网情况简介如下:1.虾渔业多为近海作业.在开发这一资源中,中、小拖网渔船居多.船长一般不超过130米,主机功率300-400马力以下.虾产量居
The rapid development of trawl fisheries has doubled the number of world shrimp catches since World War II, reaching 1,474,176 tons in 1978, an increase of about 3.7 times that of 1950 (398,000 tons). In the meantime, worldwide trawling damage The juveniles and juveniles destroy aquatic resources more and more, therefore, this issue is more and more aroused the close attention of aquatic workers.A brief introduction of some of the world’s shrimp boats and nets is as follows: 1. Shrimp fisheries are mostly offshore operations. In the development of this resource, medium and small trawlers are mostly captains generally not more than 130 meters, the host power of 300-400 horsepower shrimp production