双向牵伸网在水产养殖业的应用李有学（辽宁省海洋水产研究所，大连１１６０２３）关键词：双向牵伸网，水产，养殖业我国幅员辽阔，发展水产养殖生产的自然条件优越，潜力很大。我国内陆湖泊、河流、水库中可养面积６千万亩，浅海滩涂可养水面约２千万亩，可养经济鱼虾贝... Application of bidirectional drafting network in aquaculture industry Li Youxue (Liaoning Marine Fisheries Research Institute, Dalian 116023) Key words: Bidirectional drafting network, aquatic products, aquaculture Our country has a vast territory and great potential for development of aquaculture production . China’s inland lakes, rivers, reservoirs can raise 60 million mu of land, shallow beaches can raise water about 20 million mu, can raise economic fish shrimp shellfish ...