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2010年6～7月,利用抽样调查方法对黄渤海区32个主要渔港、渔村的张网渔业进行了实地调查和现场测量。依据调查资料并结合2009年度河北、辽宁、山东以及天津三省一市的渔具渔法调查报告、1983～2009年中国渔业年鉴中记载的张网捕捞产量分类统计资料,对黄渤海区的张网渔业进行了研究。结果表明,1998年张网产量最高,达90.43万t,贡献率为17.18%,此后逐年波动下降。当前,张网是黄渤海区捕捞作业的重要渔具渔法之一,处在第3位,年产量为38.15万t,贡献率为10.49%。目前在黄渤海区进行捕捞作业的张网共有4个型、7个式、19种张网网型、总量69万顶。辽宁省的张网数量占三省一市张网数量的53.54%,主要分布在辽东湾作业;河北省的张网数量占24.69%,主要分布在渤海湾作业;山东省的张网数量占23.08%,主要分布在日照至烟台近海作业。其中以捕捞海蜇、虾类和小杂鱼为主的并列单片张网占54.51%;以捕捞毛虾为主的双锚竖杆张网占16.12%。大多数张网的最小网目尺寸均在4～30mm之间。综合分析表明,张网在黄渤海区渔业中所占比重较大、选择性较差、最小网目尺寸偏小,不利于黄渤海区渔业资源可持续利用。
From June to July 2010, a sample survey was conducted to survey and measure the net fisheries of 32 major fishing ports and fishing villages in the Huang-Bohai Sea area. Based on the survey data and the 2009 survey report of fishing tackle fishing methods in Hebei, Liaoning, Shandong and Tianjin provinces and municipalities and the classification statistics of net fishing yield recorded in China Fisheries Almanac from 1983 to 2009, Were studied. The results show that in 1998 the highest net output reached 904,300 t, the contribution rate was 17.18%, and then decreased year by year. Currently, Zhangwang is one of the major fisheries fishing methods in the fishing operation in the Yellow Sea and Bohai Sea, ranking No. 3 with an annual output of 381,500 tons and a contribution rate of 10.49%. There are currently four types of fishing nets in the Yellow Sea and the Bohai Sea area, seven types and 19 types of netting, with a total volume of 690,000. Liaoning Province accounted for 53.54% of the total number of Zhangwangs in three provinces and one city, mainly distributed in Liaodong Bay; the number of Zhangwangs in Hebei Province accounted for 24.69%, mainly distributed in Bohai Bay; the number of Zhangwangs in Shandong Province accounted for 23.08% , Mainly distributed in Rizhao to Yantai offshore operations. Among them, 54.51% were monolithic jellyfish dominated by jellyfish, shrimp and small trash fish, and 16.12% were double-anchored vertical pole net with fishing shrimp. Most webs have a minimum mesh size between 4 and 30mm. Comprehensive analysis shows that Zhangwang has a large proportion of fishery in the Yellow Sea and Bohai Sea, a poor selectivity and a small minimum size of the meshes, which is unfavorable to the sustainable utilization of fishery resources in the Yellow Sea and the Bohai Sea.