Cooperative Fish and Wildlife Research Units Program: Texas
Education, Research and Technical Assistance for Managing Our Natural Resources

Texas Project

Food habits of SGCN fishes to inform habitat assessment and restoration in the Red River basin (TCU 444)

January 2023 - August 2024


Participating Agencies

  • Texas Parks and Wildlife Department

The ecology of many prairie stream fishes is not well understood, despite long recognition that these fishes are negatively affected by stream flow alterations, habitat degradation, fragmentation, and invasive species. River regulation and degraded riparian habitat due to salinization and invasive species have the potential to diminish resource heterogeneity that supports riverine food-webs of prairie fishes. The primary objectives of our study are to (1) characterize spatial and temporal variation of Red River Shiner, Red River Pupfish, Plains Minnow, and Prairie Chub food habits, (2) determine the degree to which aquatic (autochthonous) and terrestrial (allochthonous) resources are utilized, and (3) describe age and growth of selected Red River fish populations. This research is a collaboration with Texas Parks and Wildlife Department. Information from this project will aid conservation efforts by identifying broad habitat types (instream, riparian) that support Red River Shiner and other prairie fish growth and production in the Upper Red River. This fundamental ecological information will describe baseline conditions and identify species-specific traits that can be used to evaluate consequences of habitat change and for predictive modeling.

Presentations Presentation Date
Wilson, W.M., J.S. Rogosch, S.F. Collins, and B.W. Durham. 2024. Spatial and interspecific variation in feeding habits of four native prairie stream fishes. Texas Chapter of the American Fisheries Society. Nacogdoches, TX. February 23-25, 2024. February 2024
Wilson, W. M., Rogosch, J. S., Collins, S. F., Durham, B. W. 2024. Spatial and interspecific variation in feeding habits of four native prairie stream fishes. Society for Freshwater Science Annual Meeting. Philadelphia, PA. Jun 2-6, 2024. June 2024
Saenz, G.P., W.M. Wilson, and J.S. Rogosch. 2024. A Gut Content Composition Analysis of Four Native Fishes of the Red River. Texas Chapter of the Wildlife Society Meeting, Houston TX Feb 19-22, 2024. February 2024