Lyndon B. Johnson Reservoir 2020 Survey Report media download(PDF 937.3 KB)

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Lyndon B. Johnson Reservoir - 2020 Survey Report

Prepared by Mukhtar Farooqi and Patrick Ireland
Inland Fisheries Division
San Marcos/Austin District

This is the authors' summary from a 35-page report. For a copy of the complete report, use the download link in the sidebar.

Fish populations in Lyndon B. Johnson (LBJ) Reservoir were surveyed in 2020 using electrofishing, and in 2021 using gill netting. Historical data are presented with the 2017-2021 data for comparison. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

Lyndon B. Johnson Reservoir is a stable-level 6,502-acre impoundment of the Colorado and Llano Rivers in Burnet and Llano counties, Texas. It was constructed in 1951 by the Lower Colorado River Authority (LCRA) for purposes of hydro-electric and steam-electric power, flood control, and water conservation. The reservoir has a drainage area of approximately 36,290 square miles and a shoreline length of about 270 miles. Residential and commercial properties border most of the shoreline area.

Management History

Important sport fish include Largemouth Bass, Channel Catfish, and White Bass. Management activities included Florida Largemouth Bass stockings from 2011 to 2016 to improve the potential for trophy Largemouth Bass, and conducting annual aquatic vegetation surveys to monitor exotic invasive species. The reservoir is managed under statewide regulations. Lyndon B. Johnson Reservoir had little vegetative coverage prior to 2012.

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-2 Inland Fisheries Division Monitoring and Management Program