Cooperative Research Units
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Evaluation of Caspian tern management to reduce predation on ESA-listed salmonids in the Columbia Plateau region


February 2013 - March 2019


This study is designed to evaluate the foraging behavior and colony connectivity of Caspian terns (Hydroprogne caspia) nesting on Goose Island in Potholes Reservoir, with particular emphasis on predation by terns from this colony on ESA-listed juvenile salmonids (Oncorhynchus spp.) from the upper Columbia River.

Research Products and Activities

Peer Reviewed Publications

  • Connon, R.E., L.S. D’Abronzo, N.J. Hostetter, A Javidmehr, D.D. Roby, A.F. Evans, F.J. Loge, and I. Werner. 2012. Transcription profiling in environmental diagnostics: Health assessments in Columbia River basin steelhead (Oncorhynchus mykiss). Environmental Science and Technology 46:6081-6087. Abstract | 
  • Hostetter, N.J., B. Gardner, A.F. Evans, B.M. Cramer, Q. Payton, K. Collis, and D.D. Roby. Wanted dead or alive: A state-space mark-recapture-recovery model incorporating multiple recovery types and state uncertainty.


  • Hostetter, N.J. 2010. Susceptibility of juvenile salmonids to avian predation: Are Caspian terns and double-crested cormorants only taking the sick and injured? M.S. Thesis, Oregon State University, Corvallis OR. 123 pp.
  • Schniedermeyer, E. 2018. The response of Caspian Terns to managed reductions in nesting habitat in the Columbia Plateau region, Washington State, USA. M.S. thesis, Oregon State University, Corvallis, Oregon. 87 pp.

Current Staff

Federal Staff: 95

Masters Students: 238

Phd Students: 144

Post Docs: 54

University Staff: 239

5 Year Summary

Students graduated: 673

Scientific Publications: 1905

Presentations: 4235



Funding Agencies

  • Public Utility District No. 2 of Grant County, Washington


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey