Lake Bob Sandlin - 2005 Survey Report
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Prepared by Michael W. Brice and Timothy J. Bister
Inland Fisheries Division
District 3-A, Marshall, Texas
This is the authors' summary from a 30-page report. For a copy of the complete report, use the download link in the sidebar.
Fish populations in Lake Bob Sandlin were surveyed in 2003 and 2005 with electrofishing and 2006 with trap nets and gill nets. Anglers were surveyed from June 2004 to May 2005 by a roving creel. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.
Lake Bob Sandlin is a 9,116-acre impoundment located on Big Cypress Creek in the Cypress River Basin. The lake is located in Titus, Camp, and Franklin Counties. Habitat features consist of standing timber, brush, riprap, creek channels, native aquatic plants, and hydrilla.
Important sport fish include channel catfish, white bass, largemouth bass, and crappie. All sport fish at Lake Bob Sandlin have historically been managed with statewide harvest regulations. Florida largemouth bass have been stocked in this reservoir to improve the quality of the largemouth bass fishery. Stockings in 1977 and 1998 have been successful in maintaining adequate Florida largemouth bass genetic influence in the population. However, recent increases in aquatic vegetation coverage have created an opportunity for additional Florida largemouth bass stocking to increase the abundance of pure Florida largemouth bass in the population and improve the trophy fishing potential of this reservoir. In recent years, native vegetation has increased to 730 acres in 2003 and 1,230 acres in 2005. Hydrilla has increased as well to 404 acres in 2003 and 1,900 acres in 2005.
- Prey species: Threadfin shad are present in the reservoir. Electrofishing catch rates of gizzard shad are relatively low with the majority of fish not available as prey to most sport fish. Bluegill and redear sunfish are also available as prey and are abundant.
- Catfishes: The channel catfish population has many fish above legal length and provides excellent angling opportunities. Flathead catfish are present in the reservoir and provide anglers with an additional sport fish. Seven percent of all angling effort at Lake Bob Sandlin was directed towards catfish.
- Temperate basses: White bass are present in the reservoir. Relative abundance of white bass has declined in recent years. Anglers fishing for white bass at Lake Bob Sandlin made up 2% of all directed effort.
- Largemouth bass: The largemouth bass population is excellent with high relative abundance, good size structure, and adequate recruitment. Relative weights were slightly below average for all inch groups. Largemouth bass had adequate growth rates, reaching legal-size in 3 growing seasons. Nearly 70% of the directed effort at Lake Bob Sandlin was from anglers targeting largemouth bass.
- White crappie: Experimental spring trap netting for crappie during the spawning season did not result in expected higher catch rates. However, both white and black crappie were collected. Ten percent of the directed angler effort at Lake Bob Sandlin was for crappie.
Conduct electrofishing surveys every other year beginning 2006, and general monitoring with trap nets and gill nets 2009-2010. Aquatic vegetation surveys will be conducted annually beginning in 2006. All sport fish will continue to be managed under statewide harvest regulations.
Performance Report as required by Federal Aid in Sport Fish Restoration Act Texas Federal Aid Project F-30-R-31 Statewide Freshwater Fisheries Monitoring and Management Program