由于近年渤海区的海洋鱼类资源逐渐减少,人们开始重视对贝类资源的采捕,锁链耙拉网就是根据玉螺(当地称海脐)的生物学特性研究制作的专项贝类捕捞渔具.它具有制作简单、成本低、收益较高、不损害亲鱼、亲蟹并保持幼鱼资源等优点,因此,深受渔民欢迎,很有发展潜力。 Due to the gradual reduction of marine fish resources in the Bohai Sea region in recent years, people have begun to attach importance to the collection and collection of shellfish resources. The chain dragging and pulling net is a special shellfish fishing gear researched and produced according to the biological characteristics of the jade snail. It has the advantages of simple production, low cost, high income, does not harm the broodstock, crabs and keep juvenile resources, therefore, welcomed by fishermen, has great potential for development.