Cooperative Research Units
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Effects of hydrologic alteration on species of greatest conservation need in Lee Creek, Oklahoma

Greenside darter from Lee Creek, Oklahoma.


July 2010 - June 2013


Lee Creek, from its origins in the Boston Mountains of the Ozarks in Arkansas, is one of six scenic rivers in Okahoma. However, in 1988, the Federal Energy Regulatory Commission (FERC) approved the construction of Lee Creek reservoir in Arkansas, near the city of Ft. Smith (FERC 1987) above the terminus of Lee Creek at the Arkansas River. Construction of an upstream dam (Pine Mountain) is currently being proposed. Prior to impoundment, Lee Creek was known to contain 78 species of fish, including the Oklahoma endangered longnose darter (Percina nasuta). We are investigating the response of the fish community from the lower dam and assessing the potential response should the upper dam be constructed.

Research Products and Activities

Peer Reviewed Publications

  • Gatlin, M.R. and. J.M. Long. 2011. Persistence of longnose darter (P. nasuta) in Lee Creek, Oklahoma. Proceedings of the Oklahoma Academy of Science 91:11-14.


  • Gatlin, M.R. 2013. The effects of hydrologic alteration on stream fish community structure in Lee Creek, Oklahoma. Master's thesis, Oklahoma State University, Stillwater. 96 pages.

Current Staff

Federal Staff: 95

Masters Students: 239

Phd Students: 142

Post Docs: 53

University Staff: 240

5 Year Summary

Students graduated: 701

Scientific Publications: 1936

Presentations: 4260



  • James LongPrincipal Investigator
  • Michael GatlinStudent

Funding Agencies

  • Oklahoma Department of Wildlife Conservation


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey