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一、越冬前的准备1.越冬网箱应加大网目,以不逃鱼为度,有利水体交换。2.准备好沉石、浮标、缆绳、细竹杆等沉箱用具。3.沉箱地点应选择水面宽敞、水质清新、溶氧丰富、底质平坦、泥沙较少、避风向阳,水深7米以上的库湾湖叉。4.为增强鱼类体质,提高成活率,越冬前应投饵喂养到水温6～8℃,即鱼不再摄食为止。5.池塘鱼种转入网箱越冬,应在水温15℃左右时进行。入箱后至沉箱前,应继续喂养,以恢复体质,适应环境,并投喂防治水霉、坚鳞病的药饵,提高成活率。二、沉箱越冬时间及密度沉箱时间应选在表层水温降至5～8℃时进行。密度应以箱内鱼群不因缺氧窒息,并最大限度利用箱体
First, the preparation before winter 1. Crab cage should be enlarged net, to escape the fish for the degree, favorable exchange of water. 2. Prepared Shen stone, buoys, cables, bamboo poles and other caisson appliances. 3. caisson location should choose a spacious surface, fresh water, rich dissolved oxygen, flat bottom, less sediment, sheltered from the sun, the depth of 7 meters above the reservoir Bay Lake fork. 4. To enhance fish physique, improve survival rate, feed before feeding should be fed to the water temperature 6 ~ 8 ℃, that is, the fish no longer feed. 5. Pond fish cage into winter, should be carried out at a water temperature of about 15 ℃. After entering the box to the caisson, should continue to feed, in order to restore physical fitness, adapt to the environment, and feeding the prevention and treatment of mold, squamous disease bait, improve survival rate. Second, the caisson winter time and density Caisson time should be selected when the surface water temperature dropped to 5 ~ 8 ℃. Density should not be due to hypoxia in the school of fish suffocation, and maximize the use of the box