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The sockeye salmon (Oncorhynchus nerka), also called red salmon, kokanee salmon, blueback salmon, or simply sockeye, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it.
Salmon can make amazing journeys, sometimes moving hundreds of miles upstream against strong currents and rapids to reproduce. Chinook and sockeye salmon from central Idaho, for example, travel over 1,400 km (900 mi) and climb nearly 2,100 m (7,000 ft) from the Pacific Ocean as they return to spawn.
Oncorhynchus is a genus of ray-finned fish in the subfamily Salmoninae of the family Salmonidae, native to coldwater tributaries of the North Pacific basin. The genus contains twelve extant species, namely six species of Pacific salmon and six species of Pacific trout, all of which are migratory (either anadromous or potamodromous) mid-level predatory fish that display natal homing and ...
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 river's commercial salmon season is very brief, beginning in May for chinook salmon, and sockeye salmon for periods lasting mere hours or several days at a time. [22] Sport fishing by contrast is open all year-long, [23] but peak season on the Copper River lasts from August to September, when the coho salmon runs.
The alluvial gravel deposits that form the Adams river bottom are ideal for the development of salmon roe and alevins. The temperature and neutral Ph of the water is also well-suited to the sockeye. Shuswap Lake, below the river, is called a "nursery lake" by biologists due to its high concentration of picoplankton, a food source for young ...
Like other wild salmon species, Sockeye harvests fluctuate but comprise 4 to 7 percent of global salmon production and 13 to 20 percent of wild salmon harvests. Between 2011 and 2014, Sockeye salmon accounted for 5 percent of the world's salmon harvest by volume and 15 percent of the world's wild salmon harvest.
Competition between juvenile salmon entering the ocean, other wild salmon, and hatchery-released salmon in the ocean is a major factor that determines survival rates. [6] Hatchery production has increased since 1970, and there is high spatial and trophic, dietary overlap between wild and hatchery sockeye, pink and chum salmon in the North ...