Choke Canyon Reservoir 2003 Survey Report media download(PDF 537.6 KB)

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Choke Canyon Reservoir - 2003 Survey Report

Prepared by John Findeisen and Aaron Walters
Inland Fisheries Division
District 1-E, Mathis, Texas

This is the authors' summary from a 28-page report. For a copy of the complete report, use the download link in the sidebar.

Choke Canyon Reservoir was surveyed in fall 2003 using trap nets and electrofishing and in 2004 using gill nets. A creel survey is conducted annually. This report summarizes the results and contains a management plan for the reservoir based on those findings.

Reservoir Description

Choke Canyon Reservoir is a 25,989-acre reservoir located on the Frio River, in the Nueces River Basin, approximately 80 miles south of San Antonio. It receives water from the Frio River and several smaller tributaries and is used for water supply and recreation. The reservoir has a history of substantial water level fluctuations. The reservoir averaged 25,895 acres in size in 2003-2004. Shoreline, boat and handicap access are adequate. Water is typically clear. Substrate is composed primarily of clays, deep loams, saline soils, sand and small rock. Littoral habitat consists of dead timber, periodically flooded live and dead terrestrial vegetation, native aquatic vegetation, and hydrilla. The water level of the reservoir average 20-23 feet below conservation pool until July 2002, when it filled. Native aquatic vegetation and hydrilla reestablished in the reservoir shortly after the reservoir filled and has expanded since.

Fish Community

Management Strategies

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Performance Report as required by Federal Aid in Sport Fish Restoration Act Texas Federal Aid Project F-30-R-29 Statewide Freshwater Fisheries Monitoring and Management Program

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