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鱼虱是一种肉眼可见似臭虫状的虫体,虫体透明或绿色,头部腹面有一对吸盘和口刺,它经常在鱼体上爬动撕咬吸血,并放出一种毒液刺激鱼体,使病鱼痛痒难受,极度不安,急剧狂游和跳跃。鱼虱不仅吸食鱼血,并刺伤和撕破鱼的皮肤,造成许多伤口而感染,使鱼体组织溃烂发炎,造成水霉和其他病菌大量感染,从而引起病鱼死亡。鱼虱对鱼种危害很大、一尾鱼种只要寄生几个鱼虱就能造成死亡,一年四季都有发生。但6—8月最为流行,不论池塘、网箱养鱼都有发生。现介绍几种
Louse is a kind of naked eyes like bug-shaped worms, body transparent or green, the head belly with a pair of sucker and stabbed, it is often crawling in the fish body vampire, and release a venom to stimulate the fish , So ill fish itching uncomfortable, extremely upset, rapid mad and jumping. Not only the fish lice fish blood and stab wounds and torn fish skin, causing many wounds and infection, the fish tissue ulceration and inflammation, resulting in a large number of watery mildew and other bacteria infection, causing sick fish death. Fish lice are very detrimental to the species. As long as a few species of fish lice are parasitic, a single species of fish can cause death, all year round. However, the most popular in June-August, regardless of ponds, cage fish have occurred. Now introduce several