Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Fort Peck water chemistry analyses


April 2015 - August 2016


This project will use otolith microchemistry to differentiate between hatchery-reared and naturally reproduced walleye in Fort Peck Reservoir. In addition, otolith microchemistry analyses will shed light on potential spawning and rearing areas in the reservoir. Our goal in this study is; 1) Quantify annual hatchery walleye fingerling contribution to the fishery, 2) quantify the level of natural reproduction and recruitment to the fishery, 3) Add insight to the level of walleye fry (natural vs. hatchery) contribution to the fishery and 4) assess stocking practices (timing, location, density, etc.) with the goal of achieving a smarter stocking strategy.


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: 4236



  • Alexander ZalePrincipal Investigator
  • Michael DuncanCo-Principal Investigator

Funding Agencies

  • Montana Fish, Wildlife and Parks


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey