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Lake Roosevelt Subpopulation Status and Trends

Information and data adapted from Parker, B., T, Rien, B. James, R. Beamesderfer. 2013. Review Draft Columbia Basin White Sturgeon Planning Framework. Portland, Or.

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Information is limited relative to abundance and density of white sturgeon in the transition section of the Columbia River between the Canadian border and Lake Roosevelt. During a limited study in 1998, significant catches of adult sturgeon occurred in this transition section; however, managers suggest that the one year of data is not adequate to estimate abundance. The limited data indicate that the Lake Roosevelt white sturgeon population is dominated by adult fish. Data show that natural recruitment (i.e., juvenile survival through an individual’s first year) is limited, contributing to the underrepresentation of sub-adult white sturgeon.


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


No data available at this time.


No data available at this time.


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

Subpopulations for Transboundary Upper Columbia Management Unit

Other Management Units - Subpopulations