carp

Carp is a fish of CYPRINIDAE and CYPRINIDAE. The body side is slender and flat, thick and slightly twisted, the back is slightly raised, and the abdominal edge is shallow arc. Big head, wide head. The kiss is blunt and round, and the upper jaw covers the lower jaw. The mouth is slightly smaller, lower, inclined and round. Three rows of pharyngeal teeth. It must be two pairs, with shorter kisses and longer chins.

The gill rakes are short and triangular. The body is round and scaly, the lateral line is complete and slightly curved. Hard spines of dorsal fin ⅲ; Hard spine ⅲ of gluteal fin, soft branch 5; Tail fin fork The posterior edge of the third hard spine of dorsal fin and gluteal fin is serrated. The back of the body is dark gray or yellowish brown, the side is slightly yellow-green, and the abdomen is light gray or silvery white. The base of dorsal fin and caudal fin is slightly black; The pectoral fin and ventral fin are slightly golden yellow.

Carp is a freshwater pelagic fish, which is omnivorous. It has strong adaptability to the living environment, inhabits the bottom of water, has mild temperament, vigorous vitality, cold tolerance, anoxia tolerance and salt tolerance, and grows well in salt water below 7g/L, with the optimum salt content of1~ 4g/L. The optimum water temperature is between 20 and 32℃, and the optimum water temperature for cultivation is between 22 and 28℃. The optimum pH value for growth is 7.5 ~ 8.5. Carp is an omnivorous fish, and its larvae mainly feed on rotifers, crustaceans and small invertebrates.

They are located in Afghanistan, Armenia, Austria, Azerbaijan, Bulgaria, China, Croatia, Georgia, Germany, Hungary, Iran, Kazakhstan, Kyrgyzstan, Moldova, Pakistan, Romania, Russia, Serbia, Slovakia, Tajikistan, Turkey, Turkmenistan, Ukraine and Uzbekistan.