Navarro Mills Reservoir 2004 Survey Report media download(PDF 487 KB)

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Navarro Mills Reservoir - 2004 Survey Report

Prepared by Timothy J. Bister and Richard A. Ott, Jr., PhD
Inland Fisheries Division
District 3-C, Tyler, Texas

This is the authors' summary from a 23-page report. For a copy of the complete report, use the download link in the sidebar.

Navarro Mills Reservoir was surveyed during the period June 2004 to May 2005 using electrofishing, trap nets, gill nets, littoral zone habitat and vegetation surveys, and an angler access and facilities survey. This report summarizes the results of the surveys and contains a management plan for the reservoir based on those findings.

Reservoir Description

Navarro Mills Reservoir is a 4,336-acre reservoir on Richland Creek, a tributary of the Trinity River. It was constructed by the U.S. Army Corps of Engineers (USACOE) in 1963 to provide flood control and water for municipal and industrial purposes. The quality of vegetative aquatic habitat remains poor. Less than 2% of the reservoir area contains aquatic vegetation. Distribution of hydrilla has increased in recent years, but total coverage is still less than 0.5 surface acres. Hydrilla occurs mainly in the Liberty Hill Park area and could potentially cause problems at the boat ramp and swimming areas. The controlling authority has been notified of the potential problems associated with hydrilla infestation.

Fish Community

Management Strategies

Based on current information, no changes in the Navarro Mills Reservoir fishing regulations are recommended. The reservoir's lack of aquatic vegetation continues to limit centrarchid populations. Any plan to improve the aquatic vegetation through introduction of desirable aquatic plants, would be difficult to accomplish due to high turbidity levels. Therefore, any improvements would have to occur naturally and likely at a slow rate. During 2008, electrophoresis should be conducted on age-0 largemouth bass to determine if the 2002 and 2003 Florida largemouth bass stockings had any positive effect on population genetics. If the percentage of Florida largemouth bass genetic influence is still below target levels, and aquatic vegetation abundance has improved, additional stocking should be recommended. The quality of the catfish, crappie, and white bass populations should provide excellent angling opportunities and should be publicized to increase utilization of these fisheries.

Sport Fish Restoration Logo

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