Salmon has a flat body, a symmetrical back and abdomen and a spindle shape. The length of the head is slightly equal to the height of the body, the mouth is in the terminal position, and the mouth crack is large. The maxilla extends backward to the posterior edge of the eye, obliquely downward, like a bird's beak. The upper jaw, lower jaw and vomer have teeth, and the eyes are larger below the body axis. The body color of salmon gradually becomes darker, and there are 10- 12 purple longitudinal stripes on the side of salmon.

Salmon has a flat body, a symmetrical back and abdomen and a spindle shape. The length of the head is slightly equal to the height of the body, the mouth is in the terminal position, and the mouth crack is large. The maxilla extends backward to the posterior edge of the eye, obliquely downward, like a bird's beak. The upper jaw, lower jaw and vomer have teeth, and the eyes are larger below the body axis. The body color of salmon gradually becomes darker, and there are 10- 12 purple longitudinal stripes on the side of salmon.