Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
Home | Intranet | Digital Measures | Help

Gary Thiede

Research Publications

  • Winters, L.K., P. Budy, and G.P. Thiede. 2017. Earning their stripes: the potential of tiger trout and other salmonids as biological controls of forage fishes in a western reservoir. North American Journal of Fisheries Management 34:1033–1046 Accepted 8 November, 2016. UJFM-2016-0062. USGS IP-074773.
  • Saunders, W.C., P. Budy, and G. Thiede. 2014. Demographic Changes Following Mechanical Removal of Exotic Brown Trout in an Intermountain West (USA), High-Elevation Stream. Ecology of Freshwater Fish. doi: 10.1111/eff.12143. USGS FSP: IP-034361. Abstract | 
  • Meredith, C., P. Budy, and G.P. Thiede. 2014. Predation on native sculpin by exotic brown
    trout exceeds that by native cutthroat trout within a mountain watershed (Logan, UT, USA) doi: 10.1111/eff.12134. USGS FSP: IPDS: IP-042175.
    Abstract | 
  • Al-Chokhachy, R., M. Peacock, L.G. Heki, and G. Thiede. 2009. Evaluating the reintroduction potential of Lahontan cutthroat trout in Fallen Leaf Lake, California. North American Journal of Fisheries Management 29:1296–1313.
  • Budy, P., G.P. Thiede, C. Luecke, and R.W. Schneidervin. 2009. Warmwater and coldwater fish in two-story standing waters. Pages 159 – 169 in S. Bonar, W.A Hubert, and D.W. Willis, editors. Standard methods for sampling North American freshwater fishes. American Fisheries Society, Bethesda, Maryland.
  • Budy, P., G. P. Thiede, P. McHugh, E. S. Hansen, and J. Wood. 2008. Exploring the relative influence of biotic interactions and environmental conditions on the abundance and distribution of exotic brown trout (Salmo trutta) in a high mountain stream. Ecology of Freshwater Fish 17:554-556.
  • Vatland, S., P. Budy, and G. P. Thiede. 2008. A bioenergetics approach to modeling striped bass and threadfin shad predator-prey dynamics in Lake Powell, Utah-Arizona. Special Section: Bioenergetics Modeling. Transactions of the American Fisheries Society 137:262-277.
  • McHugh, P., P. Budy, G. P. Thiede, and E. VanDyke. 2008. Trophic relationships of nonnative brown trout, Salmo trutta, and native Bonneville cutthroat trout, Oncorhynchus clarkii utah, in a northern Utah, U. S. A. river. Environmental Biology of Fishes 81(1):63-75.
  • Budy, P., G.P. Thiede, and P. McHugh. 2007. Quantification of the vital rates, abundance, and status of a critical, endemic population of Bonneville cutthroat trout. North American Journal of Fisheries Management 27:593-604.
  • Budy, P., G.P. Thiede, N. Bouwes, C.E. Petrosky, and H. Schaller. 2002. Evidence linking delayed mortality of Snake River salmon to their earlier hydrosystem experience. North American Journal of Fisheries Management 22:35-51.
  • Thiede, G.P. 1997. Impact of lake trout predation on prey populations in Lake Tahoe: a bioenergetics assessment. Master’s thesis, Utah State University, Logan, Utah.
  • Stahl, T.S., G.P. Thiede, R.A. Stein, M.F. Austin, and E.M. Lewis. 1996. Factors affecting survival of age-0 saugeye, Stizostedion vitreum X S. canadense stocked into Ohio Reservoirs. North American Journal of Fisheries Management 16:378-387.

Current Staff

Federal Staff: 95

Masters Students: 244

Phd Students: 144

Post Docs: 55

University Staff: 251

5 Year Summary

Students graduated: 680

Scientific Publications: 1916

Presentations: 4259


Contact Us

Cooperative Research Units Program Headquarters Reston, VA 20192 Phone: (703) 648 - 4260 Fax: (703) 648 - 4269 Our University Web Site


John Organ
CRU Chief John Organ processing a Canada lynx kitten during a long term research collaboration between the Maine Department of Inland Fisheries and Wildlife and the Fish and Wildlife Service.

John F. Organ is the Chief of the U.S.G.S. Cooperative Fish and Wildlife Research Units. He was Chief of Wildlife and Sport Fish Restoration for the Northeast Region of the U.S. Fish and Wildlife Service from 2005 to 2014, and worked in the FWS’s Ecological Services and National Wildlife Refuge programs during his 35 year career. He is also an Adjunct Associate Professor of Wildlife Conservation at the University of Massachusetts, Amherst, Michigan State University, and Andres Bello University in Santiago, Chile. He is a certified Wildlife Biologist and Past President and Fellow of The Wildlife Society. He is also a Professional Member of the Boone and Crockett Club and a Senior Specialist in the Fulbright Scholar Program. He is a member of the IUCN Otter Specialist and Sustainable Use and Livelihoods Groups, and an instructor and Advisory Board member of the Conservation Leaders for Tomorrow Program. He is also a consultant to the Peru Forest Sector Initiative where he is assisting the Peruvian government in training biologists and developing wildlife regulations. He advises M.S. and Ph.D. students studying carnivores and human dimensions in Africa, Canada, Chile, and the U.S. and teaches graduate courses in Wildlife Management and Conservation and Human Dimensions of Wildlife Conservation.


  1. U.S. Geological Survey
  2. U.S. Geological Survey - Ecosystems
  3. U.S. Department of the Interior

Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey