Gilmer Reservoir 2004 Survey Report media download(PDF 417.3 KB)

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Gilmer Reservoir - 2004 Survey Report

Prepared by Michael W. Brice
Inland Fisheries Division
District 3-A, Marshall, Texas

This is the authors' summary from a 25-page report. For a copy of the complete report, use the download link in the sidebar.

Gilmer Reservoir was surveyed using gill nets (spring; 2002-2004), trap nets (fall; 2001-2004), and electrofishing (fall; 2001-2004) to monitor the fish community. Habitat, vegetation, and access surveys were also conducted in 2004. Additionally, an access creel survey was conducted September 2001 through August 2002 (36 days). This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

Gilmer Reservoir is located on Kelsey Creek in the Cypress River Basin. It was constructed by the City of Gilmer in 1995 for municipal water, a water supply for a downstream gas-fired electric power plant, and public recreation. The dam was closed in 2000 and the reservoir filled to its conservation pool of 315 ft msl. The reservoir inundates 1,010 acres and has a maximum depth of 28 ft. Shoreline length is 7.5 mi and the shoreline development ratio is 1.6. The reservoir lies within the East Texas Timberlands Land Resource Area and has a drainage area of approximately 40 square miles. Annual water level fluctuation is unknown and will be better understood after the downstream power plant is on line. The reservoir opened to the public September 29, 2001. Boating access is available at one county park. A two-lane boat ramp equipped with loading piers and parking for 100 vehicles is provided. Structural habitat is comprised of inundated timber, brush, and creek channels. Most of the timber was removed during the construction phase; however most of the basin contained brush and native grasses prior to dam closure. Aquatic macrophyte growth is moderate with hydrilla, chara, and coontail being the dominant species.

Fish Community

Management Strategies

The relative abundance of largemouth bass, crappie, and many sunfish species has increased in the time since sampling was initiated (2001) following impoundment of Gilmer Reservoir. The relative abundance of channel catfish, however, has declined and the population is represented only by low numbers of larger (>25 inches) adult fish. Supplemental stockings of advanced-size channel catfish need to be conducted until natural recruitment occurs to maximize quality fishing opportunities. The fish community should be surveyed every 4 years using electrofishing, frame netting, and gill netting techniques. Additionally, an access creel survey will be conducted June 2005 through May 2006 to monitor angling effort and success. Fishing information should be disseminated to the public through media outlets to keep anglers aware of fishing opportunities.

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

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