Bream is the collective name of triangle bream and tufted bream (Wuchang fish). Mainly distributed in the middle and lower reaches of the Yangtze River in China. The meat is tender and delicious, and it is one of the main freshwater farmed fish in China. Wuchang fish is mainly produced in the middle and lower reaches of the Yangtze River, with Hubei being the most prolific. The body of Wuchang fish is flat side, long prism, dorsal bulge is obvious, head is small, mouth is small, body side is dusty with light brown luster, dorsal color is dark, belly color is light, belly color is light, scales are medium in size, anal fin is long , Caudal peduncle is short, and caudal fin bifurcation is deep. The bream is tender and plump, with many small bones and few large ones.