Channel catfish and Qingjiang fish is not a kind of, the two distribution areas as well as characteristics are significantly different. Which is commonly known as catfish fat head fat, river group, belonging to the catfish order, the family of fish, shad genus, distributed in the Yangtze River system. And Qingjiang fish is the fish inside the Qingjiang reservoir in Hubei.

From the characteristics of catfish catfish abdominal expansion, tail is sideways flat, light and heavy. The Qingjiang fish swim bladder fat, fresh when silver-white, more tender and fatty meat. Channel catfish is a warm water fish, survival temperature of 0 ~ 38 ℃, growth temperature of 15 ~ 30 ℃, pH range 6.5 ~ 9.0, the optimal pH 7.0 ~ 8.4, intolerant of low oxygen, when the pond water quality of dissolved oxygen is as low as 2.5 mg / liter, it will float head. Channel catfish camp benthic life, like clusters, fear of light.