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O.H. Ivie Reservoir 2009 Survey Report media download(PDF 834.7 KB)

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O.H. Ivie Reservoir - 2009 Survey Report

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Prepared by Mukhtar Farooqi, Mandy K. Scott, and *Craig Bonds
Inland Fisheries Division
District 1-C, San Angelo, Texas
* Region 3 Office, Tyler, Texas

This is the authors' summary from a 37-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 annually from 2006 to 2009 using electrofishing, in 2009 using trap nets, and in 2010 using gill nets. A creel survey was conducted from June 2009 to May 2010. 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, when full, and is located on the Colorado and Concho rivers in Concho, Runnels, and Coleman counties, Texas, approximately 55 miles east of San Angelo. Water level declined 26 feet from May 1998 to November 2004. Subsequent rainfall led to increases in water level in 2005 and 2007; the reservoir was approximately 21 feet below conservation pool at the time of fall sampling. In May 2010, reservoir surface area totaled 10,675 acres. Habitat features consisted of standing timber, rocks, flooded saltcedar, native submerged aquatic plants, and hydrilla.

Management History

Important sport fish included largemouth bass, white bass, white crappie, and catfishes. The management plan from the 2005 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 of 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

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Performance Report as required by Federal Aid in Sport Fish Restoration Act Texas Federal Aid Project F-30-R-35 Statewide Freshwater Fisheries Monitoring and Management Program



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