Salmon is a kind of freshwater fish. Its tuna has low nutritional value, and it eats a lot in life. The main reason is that this salmon is cheap and nutritious.

Tuna and salmon are very different. Tuna is a marine fish and salmon is a freshwater fish. Its tuna has low nutritional value, and it eats a lot in life. The main reason is that this salmon is cheap and nutritious. Tuna is tender, salmon is tender, and the color is good.