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病原尺蠖鱼蛭。临床症状寄生在鱼的体表、鳃、鳍条等处,病鱼烦躁不安,在水面狂游,严重寄生时导致生长不良及贫血。流行情况可危害黄鳝、鲫鱼、草鱼等鱼,夏秋季感染较多。诊断根据症状在易感部位发现虫体即可确诊。防治措施1.蛭类对食盐敏感,每立方米水体可用20~25kg食盐浸洗1小时。2.0.7ppm敌百虫全塘泼洒,连用两次。海洋渔业
Pathogen feet 蠖 fish leeches. Clinical symptoms parasitic on the surface of the fish, gills, rays and other places, sick fish restlessness, swimming in the water, resulting in severe parasitosis and poor anemia anemia. Epidemic harm can eel, carp, grass carp and other fish, more infections in summer and autumn. Diagnosis According to the symptoms found in susceptible parts of parasites can be diagnosed. Control measures 1. BHA sensitive to salt, water per cubic meter can be 20 ~ 25kg salt immersion 1 hour. 2.0.7ppm trichlorfon whole pond spill, once every two. Marine fisheries