There are also landlocked populations of some salmon species that have adapted to spend their entire life in freshwater like trout. Trout, which are sister species of salmon, also perform similar migrations, although they mostly move potamodromously between creeks and large freshwater lakes, except for some coastal/ estuary subspecies such as steelhead and sea trout that migrate seasonally between salty/ brackish and fresh water just like salmon do. ![]() It is thought that, when they are in the ocean, they use magnetoreception to locate the general position of their natal river, and once close to the river, that they use their sense of smell to home in on the river entrance and even their natal spawning ground. ![]() Usually they return with uncanny precision to the natal river where they were born, and even to the very spawning ground of their birth. When they reach sexual maturity, the adults return to the upstream rivers to reproduce. Salmon are anadromous, spending their juvenile life in rivers or lakes, and then migrating out to sea where they spend adult lives and gain most of their body mass. After spawning, all species of Pacific salmon and most Atlantic salmon die, and the salmon life cycle starts over again with the new generation of hatchlings. For the Splatoon mode, see Splatoon 2 and Splatoon 3.Ī grizzly bear ambushing a jumping salmon during an annual salmon runĪ salmon run is an annual fish migration event where many salmonid species, which are typically hatched in fresh water and live most of the adult life downstream in the ocean, swim back against the stream to the upper reaches of rivers to spawn on the gravel beds of small creeks. For the video game, see Salmon Run (video game).
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