O.H. Ivie Reservoir 2005 Survey Report media download(PDF 424.2 KB)

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O.H. Ivie Reservoir - 2005 Survey Report

Prepared by C. Craig Bonds and Mandy K. Scott
Inland Fisheries Division
District 1-C, San Angelo, 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 O. H. Ivie Reservoir were surveyed in 2005 using electrofishing and trap nets, and in 2006 using gill nets. Anglers were interviewed from June 2005 to May 2006 during a creel survey. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

O. H. Ivie Reservoir is a 19,200-acre impoundment located on the Colorado and Concho rivers in Concho, Runnels, and Coleman counties, Texas, approximately 55 miles east of San Angelo. The water level declined 26 feet from May 1998 to November 2004, and increased over 14 feet from November 2004 to April 2005. In May 2006, reservoir surface area totaled 12,100 acres. Habitat features consisted of standing timber, rocks, flooded saltcedar, native submerged aquatic plants, and hydrilla.

Management History

Important sport fish include largemouth bass, white bass, white crappie, and catfishes. The management plan from the 2001 survey report included annual electrofishing and creel surveys to evaluate the effectiveness of the 2001 largemouth bass length limit change (from 18-inch minimum length and 5-fish bag to a 5-fish bag, 2 of which may be <18 inches) and annual aquatic vegetation surveys primarily to monitor changes in hydrilla coverage. The purpose of the largemouth bass regulation change was to increase growth rates for 14- to 18-inch fish by reducing stockpiling through increased angler harvest. A variety of fish species have been stocked in the reservoir including threadfin shad; bluegill; channel, blue and flathead catfishes; Florida largemouth bass; smallmouth bass; white crappie; and walleye. Walleye stockings were discontinued after failing to produce a fishery.

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-30-R-31 Statewide Freshwater Fisheries Monitoring and Management Program

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