Catfish's head will be obviously larger than Qingjiang's fish head, and it will be flat. Generally, the fish head is larger than the body.

2. Different fins:

Catfish has only 1 dorsal fin on its back, which is relatively small.

Qingjiang fish has two dorsal fins, one in front, the other in the tail, and the one in the tail is a fleshy dorsal fin.

3. The fish mouth is different

Qingjiang fish's mouth is a little flat and wide, its beard is short, and it has two whiskers.

Catfish's mouth is arc-shaped, relatively round, and its beard is very long, with four or more whiskers.

Extended data

nutritive value

Catfish is rich in nutrition. According to the determination, every 65438 000 grams of catfish edible part contains 65438 04.4 grams of protein, 2.65438 0 grams of fat, 64.65438 0 grams of water, and other nutrients such as sugar, calcium, phosphorus and iron.

Protein of catfish contains 8 kinds of amino acids necessary for human body, which is completely protein and easy to be digested and absorbed by human body. Catfish is a good nourishing food with low fat content and many trace elements. Fish is tender and easy to digest, with few bone spurs, which is especially suitable for the elderly, women and children.

Baidu encyclopedia-catfish

Baidu encyclopedia-Qingjiang fish