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Wanapum Subpopulation Status and Trends

Golder Associates Ltd. 2003. White sturgeon investigations in Priest Rapids and the Wanapum reservoirs on the Middle Columbia River, Washington. Report (Golder 002-8817F) to the Public Utility District No. 2 of Grant County, Wenatchee, Washington.

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Monitoring of the Wanapum white sturgeon subpopulation has been limited. A 2002 survey resulted in a population estimate of 551 white sturgeon. During this survey, 20% of the white sturgeon that were collected were juveniles, suggesting that natural recruitment or the addition of juveniles from upstream reservoirs is occurring in Wanapum Reservoir.
















Abundance




* Abundance was not estimated for years without data.

Productivity


No data available at this time.

Density


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 Mid-Columbia Management Unit

Other Management Units - Subpopulations