Most people associate salmon with either the ocean or rivers, but few know of lake-dwelling salmon. These landlocked fish are completely cut off from the sea and spend their entire lives in freshwater.
Both Pacific and Atlantic salmon are anadromous fish, which means that they are born in freshwater, spend most of their lives in saltwater, and then return to freshwater for spawning.
When salmon make their challenging way upstream to reach their spawning grounds, they use up all their energy, and their bodies start to shut down. This process results in fish that are rotting alive, hence the term zombie salmon.
Alaska is the world’s largest commercial salmon fishery. Annually, the region produces hundreds of millions of fish and employs more than 15.000 fishermen. While being both dangerous and demanding, to many fishermen, it’s the job opportunity of a lifetime.
In total, there are six main types of salmon in the world. They include the five Pacific species king, sockeye, chum, coho, pink salmon, and the one Atlantic salmon species.
Salmon enter fast-flowing freshwater systems and swim up their natal rivers to find a suitable spawning location. The rivers’ running water and habitat provide both plenty of oxygen and shelter for the eggs and juvenile salmon, which increases their rate of survival.