Robert Hayward

Robert Hayward, Ph.D.

Associate Professor (retired)
Fisheries and Wildlife


  • Ph.D., 1988, Ohio State University


  • Fish bioenergetics, compensatory growth, fish population dynamics and aquaculture.

Research Summary

  • Temperature effects on growth and survival of sportfishes.
  • Energetics evaluations of fish populations by modeling and in situ approaches.
  • Evaluation and improvement of predictive accuracy of fish bioenergetics models.
  • New applications of bioenergetics models—predicting fish condition and growth in length.
  • Fish population dynamics.
  • Compensatory growth in fishes in relation to aquaculture, aquatic ecology, modeling and fish growth regulation.
  • Development of techniques for rearing large, food-size sunfish for food markets.

Selected Publications

  • Bajer, P. B., J. J. Millspaugh, and R. S. Hayward. 2007.
    Application of discrete choice models to predict white crappie temperature selection in two Missouri impoundments. Transactions of the American Fisheries Society 136:889-901.
  • Bajer, P. G., and R. S. Hayward. 2006.
    A combined multiple-regression and bioenergetics model for simulating fish growth in length and condition. Transactions of the American Fisheries Society 135:695-710.
  • Hayward, R. S., and H. P. Wang. 2006.
    Rearing male bluegills indoors may be advantageous for producing food-size sunfish. Journal of the World Aquaculture Society 37:496-508.
  • Bajer, P. G., R. S. Hayward, G. W. Whitledge, and R. D. Zweifel. 2004.
    Simultaneous identification and correction of systematic error in bioenergetics models: demonstration with a white crappie Pomoxis annularis model. Canadian Journal of Fisheries and Aquatic Sciences 61:2168-2182.
  • Hayward, R. S., N. Wang, and D. B. Noltie. 1997.
    Use of compensatory growth to double hybrid sunfish growth rates. Transactions of the American Fisheries Society 126:316-322.