What's the difference between sea fish and freshwater fish? Who can tell me?

The difference between marine fish and freshwater fish: there is little difference in nutrients. Both marine fish and freshwater fish are rich in protein and very little in mineral fat, so they are the best choice for people of all ages. But if you carefully calculate the nutritional components of marine fish and freshwater fish, the nutritional components of marine fish are richer and richer. ?

The difference between marine fish and freshwater fish: marine fish tastes better. Another difference between marine fish and freshwater fish is that marine fish tastes better than freshwater fish. This is mainly because marine fish grow in the sea with large swimming range and swimming dynamics, so the muscle elasticity of seawater is better and the taste is more delicious. In addition, freshwater fish mainly feed on saprophytes in the river, and the swimming range is small. Freshwater fish also have earthy smell, so marine fish taste better.