1, Different body types: Salmon is slender and submarine-like, while salmon is wide and has a larger abdomen.
2, fish scales are different: salmon scales are small and extremely difficult to see with the naked eye, while salmon scales are larger.
3. The appearance is different: the fins, wings and the lower edge of the tail of the salmon have a white striped edge, which is very obvious and beautiful, while the salmon does not.
4. Different spawning periods: In natural environment, salmon spawn in autumn, while salmon spawn in winter and spring.