Natural classification: rainbow trout is Salmoniformes, Salmonidae, Pacific salmon, while Atlantic salmon is Salmoniformes, Salmonidae, Salmonidae.

Distribution: Rainbow trout originates from the Pacific coast of North America, while Atlantic salmon originates from the northern part of the Atlantic Ocean.

Appearance: Atlantic salmon skin is silver and black, with clear layers, while rainbow trout skin is silver, black, brown, with mixed colors and red stripes in the middle of the skin.

First, the natural world classification

1, rainbow trout for the Chordata, Scleractinia, Salmoniformes, Salmonidae, Pacific salmon genus.

2. Atlantic salmon is a member of the phylum Chordata, order Scleractinia, order Salmoniformes, family Salmonidae, genus Salmon.

Second, the distribution area

1, the rainbow trout originates from the Pacific coast of North America and Kamchatka Peninsula, mainly inhabiting the cold and clear upstream headwaters, streams, small rivers to large rivers or lakes.

2, Atlantic salmon origin for the northern Atlantic region, namely, the northeastern North America, the Breton Islands, Europe, Scandinavia coastal areas.

Third, the appearance of the product

1, the Atlantic salmon skin is silver and black, the level is clear, clean, while the rainbow trout skin is silver, black and brown, the color is more messy, and in the middle of the skin there are red stripes.

2. Atlantic salmon has a wider fat line (white line) and the edges of the line are fuzzy, whereas rainbow trout has a thinner fat line and the edges of the line are hard (i.e., the red and white are distinct).