Calaveras Reservoir 2019 Survey Report media download(PDF 660.4 KB)

If you have difficulty accessing the information in this document, contact the TPWD Inland Fisheries Division for assistance.


Calaveras Reservoir - 2019 Survey Report

Prepared by Randy Myers and Mitchell Nisbet
Inland Fisheries Division – San Antonio District

This is the authors' summary from a 34-page report. For a copy of the complete report, use the download link in the sidebar.

Fish populations in Calaveras Reservoir were surveyed in 2019 using electrofishing and in 2018 and 2020 using gill netting. Historical data are presented for comparison. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

Calaveras is a 3,110-acre reservoir located on the southeast side of San Antonio in Bexar County, Texas. It was built in 1969 by City Public Service Energy (CPSE) for power plant cooling, and later opened for recreation. Recreation access is controlled by Thousand Trails Management Services, Inc., and paid entry is required. Water level is maintained at or near conservation pool by pumping from the San Antonio River. Aquatic plant coverage in the reservoir is minimal and primarily bulrush.

Management History

Important sport fishes include Red Drum, Hybrid Striped Bass, Blue Catfish, and Channel Catfish. Stockings of Red Drum and Hybrid Striped Bass have occurred most years since the mid-1970s and are required to maintain their populations. Advanced-size Sunshine Bass (4-6 inches), purchased by CPSE, were stocked in 2014-2017. Numerous other species were stocked historically, including marine fishes, to provide additional, unique angling opportunities. All sport fish are currently managed with statewide regulations, except Red Drum which have a 20-inch minimum length limit and no maximum length limit. Various Largemouth Bass harvest regulations have been used, and the current minimum length limit of 14 inches was implemented in 2015.

Fish Community

Management Strategies

Sport Fish Restoration Logo

Performance Report as required by Federal Aid in Sport Fish Restoration Act Texas Federal Aid Project F-221-M-6 Inland Fisheries Division Monitoring and Management Program

Related Links: