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渤海西部毛虾是河北、山东、天津捕捞的重要水产品之一,最高年产量曾达八万多吨,但从三十多年的产量来看,年产量相差悬殊,年产量最低的1965年还不到一万吨。由年产量的变化反映出的资源特点是:毛虾资源衰退后,逐渐恢复,在恢复阶段有一个较短时期的稳定,然后继续发展,当达到最高水平时,如果利用过多,继而下降。今后捕捞毛虾保持在什么水平上才不致使资源衰退?同时与此相关的渔捞力量究竟多大比较适合?本文就这两个问题,试图用剩余产量模式分析渤海西部毛虾资源现状,概算它的持续产量和渔捞力量,据此提出一些管理意见。
Shrimp in the western Bohai Sea is one of the important aquatic products harvested in Hebei, Shandong and Tianjin. The highest annual output has reached more than 80,000 tons. However, in the past 30 years, the gross annual output is quite different and the annual output is the lowest in 1965 Less than ten thousand tons. The resource characteristics reflected by the change of annual output are: the shrimp resource gradually recovers after a recession, has a relatively short period of stability during the recovery phase, and then continues to develop. When it reaches the highest level, it will decline if it is used excessively. In the future, what kind of fishing shrimp should be maintained will not lead to the decline of resources? At the same time, the fishing power related to this is more appropriate? This paper tries to analyze the status quo of the shrimp resources in the western Bohai Sea by using the residual production model, The sustained output and fishing power, put forward some management opinions accordingly.