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一般养鱼网箱设置在江河、湖泊和水库等水体中,因网箱使用时间过长老化破裂,鼠害、机械地和人为地损坏而发生逃鱼现象时有发生,又一时不易被发现,影响了鱼产量和经济效益。现介绍一种简便易行的防逃方法: 在放养鱼种或成鱼网箱中同时放入3至4尾同规格的红鲤,因红鲤的活动能力比草鱼、鲢鱼和鳙鱼强,且喜跳跃,网箱一有破洞鲤鱼就会马上乘机逃走,而红鲤逃走后最易被发现,因而起到了网箱破裂报信的作用。1991年我县回龙镇老虎坝放养的网箱有几处发生破裂,都因放养了红
Generally, fish-breeding cages are set in water bodies such as rivers, lakes and reservoirs. Occurrence of escape of fish due to overuse of cages over time, rodent damage, mechanical and man-made damages can not be easily detected in a single moment, Affect the fish production and economic benefits. Now introduced a simple anti-fleeing methods: in stocking or into fish into the same cage at the same time 3 to 3 with the same specifications of red carp, because the activity of red carp grass carp, silver carp and anchovy strong, Jump and joy, a hole in the cage carp will immediately take the opportunity to escape, and the red car after the most easily escaped to find, which played a role in breaking the messenger cages. In 1991, Hu County, Huilong Town, Tiger Bar stocking cage several rupture, because of the stocking of red