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(接上期)利用网箱进行1龄鱼种越冬时,要把敞口式变为封闭式,并把箱内食台拆除,把网箱沉到池(沟)底,同时池(沟)水的高度以高于网箱上端高度50厘米为宜。注意雪后及时清除冰面上的积雪,使冰面透光好。为避免发生水霉和死鱼现象,在越冬期间禁止捕捞或倒箱。(五)乌鳢的苗种运输1.尼
(Continued) When the cage is used for overwintering of the first instar fish species, the open type should be changed to a closed type and the feeding table inside the tank should be removed to sink the cage to the bottom of the pond (ditch) Height above the top of the cage height of 50 cm is appropriate. Pay attention to promptly remove the snow on the ice to make the ice transparent. In order to avoid the occurrence of water mold and dead fish, it is forbidden to catch or dump during wintering. (E) the seedlings of black beans transport 1. Nepal