Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Developing a DNA-based tool to estimate the number of salmon consumed by piscivores in the Sacramento Delta


August 2019 - September 2020


Predation is a major source of mortality for salmonids out-migrating from the Sacramento River. Here, we are using a newly developed tool (DNA mixtures) to estimate the number of salmon that are consumed by piscivores as they exit the river. This project is a collaboration between USGS offices in Wisconsin and California. The results will be used to better estimate predation, which will inform salmon management in the Sacramento River.


Current Staff

Federal Staff: 2

Masters Students: 10

Phd Students: 0

Post Docs: 0

University Staff: 6

5 Year Summary

Students graduated: 12

Scientific Publications: 32

Presentations: 123



Funding Agencies

  • US Geological Survey Pacific Region


Wisconsin Cooperative Fishery Research Unit Cooperators

  1. U.S. Geological Survey
  2. University of Wisconsin-Stevens Point
  3. Wisconsin Department of Natural Resources