改善传统养殖方式,保证鲜活水产品均衡上市。一是改善鱼种投放结构。首先是根据轮捕轮放的要求,每年冬季放养一定比例接近上市规格的鱼种,以便在水产品销售淡季投入市场;其次,按大品种以小规格上市,小品种以大规格上市的要求,放养不同规格的鱼种;再次,增加草鱼、鳊鱼和鲫鱼放养量,降低 Improve the traditional farming methods to ensure a balanced listing of fresh aquatic products. First, improve the structure of fish species. The first is based on the requirements of the wheel catcher and put a certain percentage of winter close to the market size of fish species in order to market in the off season of aquatic products into the market; secondly, according to a large variety of small-size market, Stocking different sizes of fish species; again, increase grass carp, bighead carp and crucian carp stocking quantity, reduce