Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Mr. Don Dennerline

Research Publications

  • Berry, C.R., D.E. Dennerline and R. Rulifson. 2013. Safety: Skills, Attitudes, Facts, and Equipment. In: Zale, A., D. Parrish and T. Sutton (eds.). Fisheries Techniques, 3rd Edition. American Fisheries Society, Bethesda, MD.
  • Dennerline, D.E., C.A. Jennings, and D.J. Degan. 2012. Relationships between hydroacoustic derived density and gill net catch: Implications for Fish Assessments. Fisheries Research 123-124: 78-89. Abstract |  Publisher Website | 
  • Nestler, J. M., R. A. Goodwin, T. M. Cole, D. Degan, and D. Dennerline. 2002. Simulating movement patterns of blueback herring in a stratified southern impoundment. Transactions of the American Fisheries Society 131:55-69.
  • Dennerline, D. E., and M. J. Van Den Avyle. 2000. Sizes of prey consumed by two pelagic predators in US reservoirs: implications for quantifying biomass of available prey. Fisheries Research 45:147-154. Publisher Website | 

Current Staff

Federal Staff: 100

Masters Students: 236

Phd Students: 155

Post Docs: 57

University Staff: 246

5 Year Summary

Students graduated: 712

Scientific Publications: 1967

Presentations: 4392


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