1. Different families and genera. Salmon is an anadromous migratory fish of the Kingdom Animalia, Phylum Chordata, Subphylum Vertebrates, Class Actinosaurs, Order Salmoniformes, Salmonidae, Salmon and Trout. The salmon is a cold-water anadromous spawning and migratory fish of the class Teleost, subclass Actinopterygii, order Salmoniformes, family Salmonidae, and Pacific salmon. It can be seen that salmon and salmon belong to the family Salmonidae, but salmon belongs to the genus Trout, while salmon belongs to the genus Salmon. The sashimi we eat is generally Atlantic salmon from the family Salmonidae, family Salmonidae, after spawning. They will not die and can mate and reproduce many times; salmon is a genus of the family Salmonidae, also known as Pacific salmon. There are many species. Unlike Atlantic salmon, salmon will spawn in rivers. die.

2. The distribution is different. Salmon is mainly distributed in the northern regions of Asia, Europe, America and the northern Pacific Ocean. The main species include Norwegian salmon, American salmon, etc. Salmon are mainly distributed in the northern Pacific Ocean and the Arctic Ocean. The main species include silver salmon, humpback salmon, Mengsu salmon, etc.

3. Different forms. Salmon has sharp teeth, small scales, silver-grey color, flat sides, and raised back. The flesh is pink and elastic. The meat is tight and delicious, with few spines, making it extremely delicious. The salmon's head is flat on the side, the tip of the snout is protruding and slightly curved, the mouth has a large slit, and it is shaped like a bird's beak. The body is generally about 60 cm long and slightly spindle-shaped. The starting point of the dorsal fin is the highest point of the body. The scales are small and arranged in an imbricate shape. The tail fin is deeply forked.