,being a parasite in the connective tissue of the caudal fin of Carassius auratus,was originally reported by Ishii as Filaria carassii in Japan.But as this particular parasite is c...

• 寄生在淡水鱼类中的线虫,种类很多,有些已是成虫,它们破坏宿主的组织,夺取其营养,使鱼体虚弱消瘦,生长不良和易受其它病害的侵袭,严重时则引起死亡。