拖网渔业是世界海洋渔业的主要作业之一,我国东、黄海水产资源日趋贫乏,尤其在70年代以前,不少中小型双船底拖网渔船,集中于近海渔场,使拖网成为酷渔滥捕,破坏渔业资源的主要工具之一,但自国家渔业法规陆续实施以来,船机不断扩大,渔场相应外延,拖网始终是海洋渔业主要渔具之一,而单位之间的产量,效益悬殊,生产仍存在局限,可见在加强渔政管理的同时,完善拖网渔具 Trawling fishery is one of the main operations of marine fishery in the world. The fishery resources in the east and the yellow sea of ​​our country are becoming increasingly scarce. In particular, before the 1970s, many small and medium sized double bottom bottom trawlers were concentrated in offshore fishing grounds, making trawling fish catch and destroy However, since the continuous implementation of the national fishery laws and regulations, the continuous expansion of ship machinery and the corresponding extension of fishing grounds, trawling has always been one of the major fishing gear for marine fisheries. However, there are still some limitations in production and profitability between units. It can be seen that while improving fishery management, we should improve trawling gear