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O.H. Ivie Reservoir 2021 Survey Report

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O.H. Ivie Reservoir - 2021 Survey Report

Prepared by Lynn Wright and Blake Thornton
Inland Fisheries Division
San Angelo District

This is the author's summary from a 42-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 2018, 2019, 2020 and 2021 using electrofishing and in 2022 using gill netting. Anglers were surveyed from June 2019 through May 2020 and from March 2022 through May 2022 using a creel survey. Historical data are presented with the 2021-2022 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

At conservation pool, O.H. Ivie Reservoir is a 19,149-acre impoundment 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 fluctuations are common; the reservoir elevation has ranged from 8 to 49 feet below conservation pool from 2000 to 2022. In 2022, the reservoir surface area was approx. 12,000 acres. Habitat features consisted of standing timber, rocks, native submersed vegetation, and flooded saltcedar.

Management History

: Fish harvest is regulated according to the standard statewide restrictions, except for Largemouth Bass. In most years since 2001, an electrofishing survey or creel survey was conducted to evaluate the effectiveness of the 2001 Largemouth Bass length limit change. The harvest regulation changed from an 18-inch minimum length limit (MLL) and 5-fish daily bag limit (DBL) to a 5-fish DBL, 2 of which may be <18 inches and no MLL. In 2015, the 18-inch MLL on Smallmouth Bass was removed and replaced with statewide regulations. 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-221-M-3 Inland Fisheries Division Monitoring and Management Program



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