在鲢、鳙鱼养成期内实行一次放鱼、分期轮捕,最解决淡水鱼均衡上市、提高养鱼效益的有效途径。几年来,鞍山市旧堡区在部分池塘推广应用此项技术,成效颇为显著,既解决了秋季集中上市卖鱼难的问题,又提高经济效益20％左右。 In the management of silver carp and anchovy, a fish release and staged arrest should be carried out during the period of silver carp and catfish cultivation, and the most effective way to balance the listing of freshwater fish and raise the profit of fish culture is to be solved. In recent years, Anshan City, the Old Fort area in some ponds to promote the use of this technology, the effect is quite significant, both to solve the problem of selling fish in the autumn concentrated on the market, but also increase economic efficiency of about 20%.