Peggy Wilzbach Name, Professor & Cooperative Research Unit Leader

Dr. Peggy Wilzbach

Contact Information

Phone: 707-826-5645
Office: WDFS, Rm 212B
Research Website:


  • B.S. Biology, University of Illinois, Champaign, 1976
  • M.S. Biology, University of Illinois, Champaign, 1978
  • PhD. Fisheries, Oregon State University, Corvallis, 1985

Courses taught at HSU

  • FISH 485/585 Ecology of Running Waters

Current Research Interests

  • Ecology and conservation of anadromous and resident salmonids
  • Stream ecology
  • Watershed restoration

For more information please visit:

Selected Publications

  • Ambrose, H. E., M. A. Wilzbach, and K. W. Cummins. 2004. Periphyton response to increased light and salmon carcass introduction in northern California streams. Journal of the North American Benthological Society, 23:701-712.

  • Cummins, K. W. and M. A. Wilzbach. 1998. A case for inside out (pathogenic) population control in a stream insect. Verh. Internat. Verein. Limnol. 26: 2035-2043.

  • Cummins, K. W. and M. A. Wilzbach. 2005. The inadequacy of the fish-bearing criterion for stream management. Aquatic. Sci. DOI 10.1007/s00027-005-0782-5.

  • Cummins, K. W., M. A. Wilzbach, R. Merritt, and J. Brock. 1999. Evaluation of the restoration of the Kissimmee River in South Florida. IN Hamilton, S.W. and D.S. White (eds). 1999. The natural history of the lower Tennessee and Cumberland River valleys. Austin Peay State University Press, Clarksville, TN.

  • Madej, M. A., M. A. Wilzbach, K. W. Cummins, C. C. Ellis, and S. J. Hadden. 2002. The contribution of suspended organic sediments to turbidity and sediment flux. Proceedings, 8th Federal Interagency Sedimentation Conference. April 2002, Reno, Nevada.

  • Magoulick, D. D. and M. A. Wilzbach. 1997. Microhabitat selection by native brook trout and introduced rainbow trout in a small Pennsylvania stream.Journal of Freshwater Ecology 12: 607-614.

  • Magoulick, D. D. and M. A. Wilzbach. 1998. Effect of temperature and macrohabitat on interspecific aggression, foraging success, and growth of brook trout and rainbow trout pairs in a laboratory stream. Trans. Amer. Fish. Soc. 127: 708-717.

  • Magoulick, D. D. and M. A. Wilzbach. 1998. Are native brook charr and introduced rainbow trout differentially adapted to upstream and downstream reaches? Ecology of Freshwater Fish 7: 167-175.

  • Wilzbach, M. A. 2001. Review of "Wildstream: a natural history of the free flowing river". Fisheries 28(8):43.

  • Wilzbach, M. A. and K. W. Cummins. 2000. Profitable stream positions differ for brook trout and cutthroat trout. Pg. 265-266 in Wild Trout VII. Management in the New Millenium: are we ready?

  • Wilzbach, M. A., K. W. Cummins, T. K. Barnes, and J. C. Trexler. 2002. Channel-floodplain coupling in the Kissimmee River, Florida (USA): invertebrate movement and fish feeding. Vereinigung fur theoretische und angewandte Limnologie, Verhandlungen. 28:164-172.

  • Wilzbach, M. A., K. W. Cummins, L. M. Rojas, P. J. Rudershausen, and J. Locascio. 1999. Establishing baseline seagrass parameters in a small estuarine bay. Pg. 125-135 in S.A. Bortone (ed.), Seagrasses: monitoring ecology, physiology, and management. CRC Press, Boca Raton.

  • Wilzbach, M. A., B. C. Harvey, J. L. White, and R. J. Nakamoto. 2005. Effects of riparian canopy opening and salmon carcass addition on the abundance and growth of resident salmonids. Canadian Journal of Fisheries and Aquatic Sciences 62:58-67.

  • Wilzbach, M. A., M. Mather, C. Folt, A. Moore, R.J. Naiman, A. Youngson, and J. McMenemy. 1998. Proactive responses to human impacts that balance development and Atlantic salmon (Salmo salar) conservation: an integrative model. Can. J. Fish. Aquat. Sci. 55 (Supple. 1): 288-302.

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