The difference between carp and crucian carp

Carp and crucian carp are common fish in our life, carp alias carp Guizi, carp, etc., originated in Asia, and later introduced into Europe, North America and other regions. Crucian carp is also known as crucian carp melon seed, month crucian carp, soil crucian carp and so on. It is a common freshwater fish in Eurasia. Many people do not know the difference between carp and crucian carp. Let's have a look together.

Body length difference

Carp body is slightly larger, generally 30-40 cm long, flat on the left and right sides, round abdomen, back slightly raised in front of the dorsal fin, mouth is horseshoe-shaped, moustache and moustache each 1 pair, the latter is twice as long as the former, Gill handle short, pharynx head teeth. Crucian carp generally have a body length of 15-20 cm, flat on the side, protruding on the back, high and wide, round abdomen, short and small head, round kiss, no moustache and moustache, Gill rake fine, pharynx teeth, large scales, and a very obvious lateral line.

Fin difference

The scale of carp is large and round, with a pair of pectoral fin and ventral fin, a pair of dorsal fin and arm fin, a forked caudal fin, hard spines on both dorsal fins and arm fins, and lead teeth on the trailing edge of the last thorn. Like carp, crucian carp has a pair of pectoral and ventral fins, a dorsal fin and an arm fin, a forked caudal fin, a hard spine on the dorsal and arm fins, and a serrated trailing edge of the last thorn.

Body color difference

The carp is grayish black on the back, bluish yellow (some black) below the lateral line, white on the ventral side and blackish on the dorsal fin. The back of crucian carp is bluish brown, the ventral side is silver gray, each fin is grayish white, but due to the growth of different waters, its body color is also different.