洪泽湖的围网养蟹面积从90年代初开始,历时15年左右,现已发展到30多万亩。纵观螃蟹围网养殖的过程可分为三个阶段:第一阶段:91～96年,洪泽湖围网养蟹为高投入,高回报阶段,围网面积少,自然资源丰富,养出的蟹品质好,规格大,价格高,产品供不应求;第二阶段:1997～2001年,洪泽湖的养 Hongze Lake fence netting area from the early 90s, which lasted 15 years, has now developed to more than 300,000 mu. Throughout the crab purse breeding process can be divided into three phases: The first phase: 91 to 96 years, Hongze Lake Seine crab as a high input, high return stage, the fence area is small, rich in natural resources, raise The crab quality is good, the specification is big, the price is high, the product falls short of demand; The second stage: from 1997 to 2001,