近年来我市渔业在成鱼生产经济效益徘徊不前的情况下，鱼种生产的“三低”（单产低、价格低和效益低）现象又日趋严重，全市出现退池还田（80％以上是鱼种池）的现象与日俱增，仅1996年我市池塘改田地的面积就达3500亩以上（鱼种池约3000亩），鱼种池退池还田的面积占全市鱼种 In recent years, the fishery industry in the city of fish production stagnated economic conditions, the production of fish species, “three low” (low yield, low prices and low efficiency) and the phenomenon has become increasingly serious, the city appeared to return to the pond (80% The above is the phenomenon of fish species pool) growing with each passing day. In 1996 alone, the area of ​​ponds in our city reached more than 3,500 acres (about 3,000 acres of fish species pool).