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Lower Monumental 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.

To view all subpopulations in the basin click here
For the Lower Monumental Reservoir white sturgeon population, status data are limited to that which was collected in 1997. An assessment was completed in 2012 and that information will be available in 2013. Results from the 1997 survey indicated that the population density, growth, and fitness for the Lower Monumental population were lower than those for the subpopulations in the lower Columbia River reservoirs (i.e., Bonneville Reservoir, The Dalles, and John Day). Managers estimated that 2,230 white sturgeon were present in Lower Monumental Reservoir in 1996. The existing population consisted of few young fish leading managers to suggest that the population was recruitment-limited.




Abundance



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

Productivity


No data available at this time.

Density


No data available at this time.

Hatchery Releases

No 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 Lower Snake Management Unit

Other Management Units - Subpopulations