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渤海湾与莱州湾西部,定置网的主要渔获物种类,挂子网50余种,樯张网40余种。主要捕捞对象是毛虾,其他种类大多都在2％以下。其中占0.1％以上的经济幼鱼、幼虾有鳓、青鳞、斑鰶、黄鲫、鲻、梭鱼、鲈、梅童鱼、小黄鱼、黄姑鱼、银鲳、半滑舌鳎和幼对虾等。毛虾等经济虾类和经济鱼类的主要出现时间,挂子网为7月11日—8月20日;樯张网为7月6日—8月25日。夏一世代毛虾产卵群体的主要死亡时间在8月中、下旬。经济幼鱼和幼对虾,挂子网从6月21日,樯张网从5月21日开始逐日增多,至8月20日以后出现的数量都很少。为合理利用毛虾资源,保护经济幼鱼、幼虾资源,根据调查结果并参看毛虾生殖期等有关文献资料,建议这两个海区的毛虾生产期,春汛挂子网应于6月20日,樯张网于5月20日结束,秋汛应于8月21日开捕为宜。禁渔期,挂子网应由原来的7月1日—8月31日调整为6月21日—8月20日;樯张网由原来的6月10日—8月31日调整为5月21日—8月20日较为合理。
Bohai Bay and the western Laizhou Bay, the main catchment species network, hanging net more than 50 species, more than 40 kinds of net Zhang. The main fishing target is shrimp, most of the other species are below 2%. The juveniles and juveniles of juveniles, juveniles and shrimps have more than 0.1% of juvenile shrimp, green scales, mackerel, yellow carp, pomfret, barracuda, perch, plum, small yellow croaker, yellow croaker, silver pomfret, Shrimp and other economic shrimp and economic fish the main emergence time, hanging net for July 11 - August 20; 樯 Zhang network for July 6 - August 25. Summer one generation of shrimp spawning groups the main death in mid-August, late. Economic juveniles and juvenile shrimp, hanging net from June 21, 樯 Zhang network from May 21 began to increase daily, to the number of occurrences after August 20 are very small. In order to make rational use of the resources of shrimp and shrimp, and to protect the resources of juveniles and juveniles, according to the survey results and referring to the relevant literature materials such as the reproductive period of shrimp and shrimp, it is suggested that the production of shrimp in the two sea areas should be completed on June 20 On July 20, Zhang network ended on May 20, autumn flood should be opened on August 21 appropriate. Closed fishing period, hanging net from the original July 1 - August 31 adjusted to June 21 - August 20; 樯 Zhang network from the original June 10 -8 31 adjusted to 5 Month 21 - August 20 is more reasonable.