The scientific name of bighead carp is Hypophthalmichthys nobilis, also known as fathead carp and black chub. The bighead carp is also known as silver carp, also known as white chub, chub. Both belong to the carp family, appearance, body shape has similarities, the main differences are as follows:

1, head: bighead chub head, equivalent to 1/3 of the length of the body, the upper jaw slightly protruding forward; bighead chub head is small, equivalent to 1/4 of the length of the body, the lower jaw is slightly protruding forward;

2, body color: bighead chub back of the body for the dark brown, with a fine black spot, the abdomen for the grayish-white, the fins are pale gray; white chub body back of the gray, with a fine spot, the fins are light gray! Chub body back is gray, the abdomen is silver-white, all fins are gray-white;

3, pectoral fins: chub pectoral fins are larger than the base of the ventral fins, a lot; chub pectoral fins smaller, the tip of the pectoral fins only up to the base of the ventral fins;

4, abdominal ridge: chub abdominal ridge is from the ventral fins to the anus, abdominal prongs shorter; chub abdominal prongs is from the chest to the anus, abdominal prongs longer;

5, texture.

5. Taste: chub has a better taste and higher nutritional value than white chub.