Alan Henry Reservoir 2021 Survey Report media download(PDF 863.7 KB)

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Alan Henry Reservoir - 2021 Survey Report

Prepared by John Clayton and Caleb Huber
Inland Fisheries Division
Amarillo District,
Canyon, Texas

This is the authors' summary from a 39-page report. For a copy of the complete report, use the download link in the sidebar.

Fish populations in Alan Henry Reservoir were surveyed in 2018, 2019, 2020, and 2021 using electrofishing, in 2019 using baited tandem hoop netting, and in 2020 using trap netting. Anglers were surveyed from April 1 through June 30 in 2018 and 2021 with a creel survey. Historical data are presented with the 2018-2021 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

Alan Henry Reservoir was constructed in 1993 on the South Fork of the Double Mountain Fork of the Brazos River. It is located 6 miles east of Justiceburg in Garza County, Texas. At conservation pool (2,220 feet above mean sea level; FMSL), Alan Henry Reservoir is a 2,884-acre impoundment. Productivity of Alan Henry Reservoir was characterized as low. Habitat features consisted of flooded terrestrial vegetation, rocks, and very small amounts of native submerged aquatic plants.

Management History

Sport fish in the reservoir included Blue Catfish, Channel Catfish, Flathead Catfish, Alabama Bass, Largemouth Bass, and White Crappie. Alabama Bass were managed with restrictive harvest regulations of 18-inch minimum length limit (MML) since their introduction in 1996 until September 1, 2011 in order to establish a viable population. In 2002, the Largemouth Bass harvest regulation was liberalized with the allowance of 2 fish under the 18-inch MML to promote recruitment of fish into size classes larger than the 18-inch MML. The Alabama Bass regulation was changed in 2011 from the 18-inch MML to be included with the Largemouth Bass regulation mentioned above (no MML on all black bass, but no more than to under 18 inches). To encourage more harvest of small black bass, the Alabama Bass regulation was further liberalized in 2019, by placing the Alabama Bass under statewide spotted bass regulations.

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-3 Inland Fisheries Division Monitoring and Management Program