锚头鳋属于寄生桡足类，对鱼类危害很大，是鱼类主要病害之一。常见且危害较大的有四种： １．多态锚头鳋。寄生于鲢、鳙鱼的体表或口腔。 ２．鲤钻头组。寄生于鲤、鲫、鳃、鳙、乌鳢、泥鳅、金鱼等的体表、鳍和眼。 ３．草鱼锚头鳋。寄生于革鱼的体表鳞下面。 ４．四球锚头经 Anchovy 鳋 belongs to the parasitic copepods, fish is very harmful, is one of the major fish diseases. Common and harmful are four: 1. Polymorphic anchor 鳋. Parasitic in silver carp, bighead carp body surface or mouth. 2. Carp drill bit group. Parasitic in carp, crucian carp, gills, flies, black flesh, loach, goldfish and other body surface, fins and eyes. 3. Grass carp anchor 鳋. Parasitic fish in the body surface scales below. 4. Four-ball anchor head