Channel catfish generally refers to longnose shad, is the family of fish, shad genus fish. Catfish often live in slower currents, deep and rocky waters of the river and bay. During the day, more lurking in the water or stone cracks, and go out at night to find food. Mainly aquatic insects and their larvae, crustaceans, small mollusks and small fish for food. Distributed in eastern China, Liaohe, Huaihe, Yangtze, Minjiang to Pearl River and other water systems and the western part of Korea, the Yangtze River system is the main.

Channel catfish and catfish have a big difference:

1, tail shape: catfish tail is round fan-shaped; catfish tail is forked.

2, the number of dorsal fins: catfish back generally only a dorsal fin; catfish back there are two dorsal fins, one in the tail, the other in front of the body.

3, body color: catfish body color is usually dark brown or gray-black, slightly dark cloudy patches; catfish body color pink, slightly gray back, white abdomen, fins for gray-black.