Chinok salmon alaska fishing planet3/1/2024 This annual migration is called a salmon run. After one to five years, the mature fish return to the rivers where they were born. In the ocean, the fish grow quickly-sometimes doubling their size in a single summer. When the larvae, known as fry, hatch from their eggs, they are often far upstream in inland tributaries, and depending upon the species, then make their way to the ocean. Regardless of whether they are ocean-dwelling or not, a salmon’s life often begins and ends in freshwater. The cutthroat trout and cherry salmon similarly have riverine and oceanic populations. These ocean-dwelling rainbow trout are also known as steelhead trout. The rainbow trout has populations that spend their entire lives in freshwater, and populations that spend part of their lives at sea. But this designation is very simplified and falls apart when considering that some species do both. “Salmon” split their lives between rivers and the ocean, while “trout” spend their entire lives in freshwater. Often, recreational fishermen will distinguish salmon from trout by where the fish live. Both groups contain fishes with the common name “salmon” and the common name “trout.” The Atlantic salmon is a member of a completely different genus, Salmo, and is likewise related to trouts in the same genus, like the brown trout that’s native to Europe. Salmons in the Pacific, including the Chinook, chum, and sockeye, are members of the genus Oncorhynchus, and are closely related to trouts, like the rainbow trout, in the same genus. However, when talking about salmon, the discussion is generally referring to two different groups-fishes in the Oncorhynchus genus and Salmo genus. The family Salmonidae includes the salmon, trout, char, freshwater whitefish, taimen, lenok, and grayling. There are many species of salmons that live around the world, and surprisingly many of the fishes known as “salmon” are not each other’s closest relatives. They are anadromous fishes, meaning they spend part of their life living in freshwater streams and part of their life in the salty ocean. Generally, fishes either live in freshwater or the ocean, but salmons often live some part of their lives in both.
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