近17年来,每年8月中旬北方三省一市海洋水产研究所共同进行的“秋汛渤海对虾可捕量预报”的预报指标,主要是依据历年8月上旬各研究所在分工调查的海湾内进行约对虾相对数量的试捕调查资料。预报方法已有专论发表,这里不作重复。以这些调查资料进行的预报,正常年份的预报准确率在90％以上,特殊年景准确率为75—80％。实践证明,采用8月 In the past 17 years, the prediction index of “the catchable yield of Bohai shrimp in autumn floods” jointly conducted by the Institute of Marine Fisheries of the three provinces and one city in the middle of August every year is mainly based on the data of the research institutes The relative amount of shrimp catch trial investigation data. The forecast method has been published monographs, not repeated here. According to the forecast made by these survey data, the forecast accuracy in normal years is over 90% and the special year’s accuracy is 75-80%. Practice has proved that using August