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psy: Salmon run

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The annual salmon run can be a major feeding event for predators such as grizzly bears and bald eagles, as well as an important window period for sport fishermen.

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A salmon run is an annual fish migration event where many salmon species, which are typically hatched in fresh water and live most of their 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. After spawning, most Atlantic salmon and all species of Pacific salmon die, and the salmon life cycle starts over again with the new generation of hatchlings. 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. When they reach sexual maturity, the adults return to the upstream rivers to reproduce. Usually they return with uncanny precision to the natal river where they were born, and even to the very spawning ground of their birth. 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. Trout, which are sister species of salmon, also perform similar migrations, although they mostly move potam…

Kategoria: psy

Rodzina: psy

Jakość źródła: 65/100

Próby weryfikacji: 3

Notatka fact-checku: Fact-check 3.0-content-aware: no sufficient claim-bound corroboration after 3 healthy attempts. Scope=verify the factual claim. Required independent sources=2; stored evidence groups=0. Provider/API errors did not consume attempts. | Fact-check 4.3.2: research wznowiony bez zdejmowania HOLD. Poprzednia metoda: factcheck-300-content-aware.

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Wikipedia ENpomocnicze

Evidence: 47 • authority: 72

A salmon run is an annual fish migration event where many salmon species, which are typically hatched in fresh water and live most of their 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. After spawning, most Atlantic salmon and all species of Pacific salmon die, and the salmon life cycle starts over again with the new generation of hatchlings. 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. When they reach sexual maturity, the adults return to the upstream rivers to reproduce. Usuall…

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Mongabaypomocniczeniezależne

Evidence: 36 • authority: 80

In a big win, Yurok Nation reclaims vital creek and watershed to restore major salmon run

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Elsevier BVpomocniczeniezależne

Evidence: 36 • authority: 80

Salmon shortages leave grizzly bears stressed

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Wikipedia ENpomocnicze

Evidence: 36 • authority: 72

Salmon (; pl.: salmon) are any of several commercially important species of ray-finned fish that can live in either freshwater or saltwater from the genera Salmo and Oncorhynchus of the family Salmonidae, native to tributaries of the North Atlantic (Salmo) and North Pacific (Oncorhynchus) basins. Salmon is a colloquial or common name used for fish in this group, but is not a scientific name. Other closely related fish in the same family include trout, char, grayling, whitefish, lenok and taimen, all coldwater fish of the subarctic and cooler temperate regions with some sporadic endorheic populations in Central Asia. Salmon are typically anadromous: they hatch in the shallow gravel beds of f…

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