鳊鱼体侧扁,呈菱形,头小,口小,自胸部至肛门间有明显的腹棱。有咽齿3行,齿细小,顶端略呈钩状。在静水,流水中都能生存,以高等水生植物为主要食物,也食藻类及浮游动物,食性与草鱼近似,不仅食素也食荤饵,既能沉底摄食又能在水的中上层水体抢食落下食物。存在着一定的季节食性。有 Flatfish fish flat, diamond-shaped, small head, small mouth, chest to anus between the obvious abdominal edge. 3 pharyngeal teeth, small teeth, the top slightly hooked. In the still water, running water can survive to the higher aquatic plants as the main food, but also eat algae and zooplankton, feeding and grass carp similar, not only vegetarian but also feed the bait, both sinking in the water but also in the upper body of water Grab food down. There is a certain seasonal food habits. Have