Cooperative Research Units
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Yellowstone cutthroat trout hybridization in the North Fork Shoshone River


July 2016 - September 2018


The goal of this project is to identify priority tributaries and determine conservation potential of Yellowstone cutthroat trout in the North Fork Shoshone River drainage. Specific objectives that will be addressed are:
1. Determine extent of YSC and RBT hybridization within the North Fork Shoshone River drainage, and variation in hybridization among tributaries.
2. Evaluate the relationship between hybridization in tributary populations and environmental variables (temperature, discharge, slope).
3. Examine the extent of population genetic structure among tributaries to assess the degree of spawning site fidelity among tributaries.


Current Staff

Federal Staff: 101

Masters Students: 234

Phd Students: 160

Post Docs: 60

University Staff: 268

5 Year Summary

Students graduated: 671

Scientific Publications: 1868

Presentations: 4326



Funding Agencies

  • USDA Forest Service
  • Wyoming Game and Fish Department


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey