How Salmon Adjust from Fresh Water to Salt Water, and Back Again

A freshwater fish cannot just swim out into the ocean unprepared. Major physiological changes have to take place first.

为什么只听说过喂鱼吃的，而没有喂鱼喝的？鱼只吃不喝会不会渴死？ - 知乎

Salmon Life Cycle and Seasonal Fishery Planning

Salmon

为什么只听说过喂鱼吃的，而没有喂鱼喝的？鱼只吃不喝会不会渴死？ - 知乎

Atlantic salmon

What are some animals that are adapted to live in both freshwater and saltwater environments? - Quora

Aquaculture and the Salmon Life Cycle

Why can some fish, like salmon and trout, thrive in both salt and fresh water, yet it is deadly for others? - Quora

Why do salmon swim upriver?

Why can some fish, like salmon and trout, thrive in both salt and fresh water, yet it is deadly for others? - Quora

Salmon run - Wikipedia

Why can some fish, like salmon and trout, thrive in both salt and fresh water, yet it is deadly for others? - Quora

Amazing Natural Phenomena: The Great Salmon Run - WorldAtlas

Chinook salmon - Wikipedia

Getting fresh: How fish transition from one type of water to the other, Dry Creek

The COHO SALMON -- survives in salt water or fresh water

Chinook Salmon Fishing in Saltwater - Salmon Fishing Now

God’s Plan Is Best: Salmon Need Saltwater Acclimation

Saltwater Salmon sport in Denmark

Rustic Interior Wall Light Fish, Made in USA, Saltwater Salmon Sconce