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据有关人士预测:我国的对虾养殖事业近年来将步入低谷。能否提高江苏省对虾养殖的经济效益,将直接关系到能否进一步巩固和发展。1987年辽宁、河北等省的对虾养殖平均单产已达到100公斤以上,其规格和经济效益也大大高于江苏。笔者现就结合江苏的养虾现状,提出几点改进意见。1.当前江苏省对虾养殖业现状1987年江苏省对虾养殖平均单产为73公斤,低于全国平均单产80.2公斤的水平,养虾经济效益基本是从北向南呈下降趋势,有的单位还出现了较严重的亏损。原因是江苏省生物饵料资源贫乏,除赣榆县有少量兰蛤
According to the personage forecast: China’s shrimp farming in recent years will come to a downturn. Whether raising the economic benefits of shrimp farming in Jiangsu Province will be directly related to the possibility of further consolidation and development. In 1987, the average yield of shrimp farming in Liaoning and Hebei provinces reached more than 100 kg, and its specifications and economic benefits were much higher than those in Jiangsu. The author now combined with Jiangsu shrimp present situation, put forward some suggestions for improvement. 1. Current status of shrimp farming in Jiangsu Province In 1987, the average yield of shrimp farming in Jiangsu Province was 73 kg, lower than the national average of 80.2 kg. The economic benefits of shrimp farming tended to decrease from north to south, and some units appeared More serious loss. The reason is poor biomass feed resources in Jiangsu Province, except Ganyu County has a small amount of blue clams