南方地区在进行家鱼人工养殖的准备工作，加强亲鱼后期培育；开始四大家鱼和鳊鱼、鲂鱼、鲫鱼、鳜鱼等的人工繁殖（下旬）； 北方地区在进行鲤鱼人工养殖的准备工作。准备开始鲫鱼、鲂鱼和叉尾 的调苗工作，并准备鱼种放养。大中型水域网箱养鱼和围栏养鱼投放鱼种。 稻田养鱼开 In southern areas, preparations for artificial breeding of domestic fish are being carried out to strengthen the later breeding of broodstock; artificial breeding of four major domestic fish, anchovy, bighead carp, crucian carp and bighead carp is started (late); preparations for artificial breeding of common carp in the north are started . Prepare seedling transfers for crucian carp, bighead carp and dovetail, and prepare stocking. Large and medium-sized water cage fish cage and fish farming. Paddy fish open