Harvesting
? Carp order carp subfamily of carp, also known as four-square skin. It is a small freshwater fish, and the adult body can reach about 6cm; the body is ovoid or rhombic; the head is short, and the mouth is small; there is one pair of whiskers or no whiskers; the anal fins begin below the base of the dorsal fins, and the dorsal and anal fins are quite long, with or without spines; the ventral fins are ventral; the caudal fins are forked; and the lateral line of scales is complete or incomplete.