What fish can live in freshwater saltwater?

These fish include salmon, smelt, shad, striped bass, and sturgeon, according to the Alaska Department of Fish and Game. Catadromous fish, on the other hand, generally live in freshwater bodies of water and only enter saltwater to spawn.

Can a freshwater fish survive in saltwater?

The reason freshwater fish cannot survive in saltwater and vice-versa has a lot to do with a property of any liquid called tonicity. In simple words, it is the ability of a solution to exert osmotic pressure upon a membrane. Tonicity comes in three types: hypertonic, hypotonic and isotonic.

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