Existing Reservoir and Stream Management Recommendations - Statewide Minimum Streamflow Recommendations

Literature on assessing streamflow needs was reviewed. Recommendations from two of the methodologies described were combined to develop minimum flows needed to maintain Texas stream fisheries. These flows were 40 percent of the median monthly flows October-February and 60 percent March-September.

To validate these flows, a field evaluation was conducted on the Guadalupe River below Canyon Reservoir. Results suggest that the above minimum flows are valid for Texas stream fisheries.