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Upper Salmon Falls-Shoshone Falls Subpopulation Status and Trends

Dillon, J. and S.A. Grunder. 2008. Management plan for the conservation of Snake River white sturgeon in Idaho. Idaho Department of Fish and Game, Boise, ID.

To view all subpopulations in the basin click here
The Upper Salmon Falls to Shoshone Falls subpopulation represents the upper most natural distribution for white sturgeon in the Snake River. In 1980, managers estimated that 14 wild sturgeon inhabited this area. Data from the 1980 assessment revealed that there were no fish less than 36 inches. Between 1990 and 2000, 1,588 hatchery-produced white sturgeon were released. An assessment of the population in 2001 resulted in a population estimate of 777, of which 94% were hatchery –origin. Of the 777 white sturgeon, managers estimated 47 wild fish were present. The low overall abundance of wild fish and absence of juvenile fish suggests that little if any recruitment has occurred for the wild population for more than 20 years.










Abundance



* Monitoring did not occur during years for which data do not exist.

Density


No data available at this time.

Productivity


No data available at this time.

Hatchery Releases



Harvest


There is no harvest since catch-and-release regulations are in effect for this subpopulation.


See other data snapshots that help us gauge the abundance of fish and wildlife:

Subpopulations for Upper Snake Management Unit

Other Management Units - Subpopulations