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A grizzly bear ambushing a jumping salmon during an annual salmon run. A salmon run is an annual fish migration event where many salmonid 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.
They are not a different species from the sea-run Atlantic salmon but have independently evolved a freshwater-only life cycle, which they maintain even when they could access the ocean. Chinook salmon (Oncorhynchus tshawytscha) are also known in the United States as king salmon or "blackmouth salmon", and as "spring salmon" in British Columbia ...
This section details the stages and the particular names used for juvenile salmon. Sac fry or alevin – The life cycle of salmon begins and usually also ends in the backwaters of streams and rivers. These are their spawning grounds, where salmon eggs are deposited for among the gravels of stream beds. The salmon spawning grounds are also the ...
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The kokanee salmon (Oncorhynchus nerka), also known as the kokanee trout, little redfish, silver trout, kikanning, Kennerly's salmon, Kennerly's trout, or Walla, [2] is the non-anadromous form of the sockeye salmon (meaning that they do not migrate to the sea, instead living out their entire lives in freshwater). There is some debate as to ...
The life cycle of salmon requires specific conditions within the chain of connected environments. Salmon typically live 3–6 years, which often changes depending on life conditions. While some salmon stay within the Puget Sound, others will migrate and live deeper in the Pacific Ocean. [9]
Alaskan pink salmon in its freshwater spawning phase. Global capture production of Pink salmon (Oncorhynchus gorbuscha) in thousand tonnes from 1950 to 2022, as reported by the FAO [23] The commercial harvest of pink salmon is a mainstay of fisheries of both the eastern and western North Pacific. In 2010, the total harvest was some 260 million ...
Atlantic salmon do not require saltwater. Numerous examples of fully freshwater (i.e., "landlocked") populations of the species exist throughout the Northern Hemisphere, [2] including a now extinct population in Lake Ontario, which has been shown in recent studies to have spent its entire life cycle in the watershed of the lake. [22]