Cooperative Fish and Wildlife Research Units Program: Utah
Education, Research and Technical Assistance for Managing Our Natural Resources

Utah Project

Assessing the impact of nutrient enrichment in the Henry’s Fork Headwaters

May 2018 - May 2023


Participating Agencies

  • Utah State University
  • Utah State University Ecology Center
  • Henry's Fork Foundation
Jack McLaren (right, Henry's Fork Foundation/USU) and Bella Fucigna (left, Henry's Fork Foundation intern/Washington & Lee University) collect and process water samples for nutrients while sitting on a dock in the Henry's Fork of the Snake River near Big Springs.

The section of the Henry’s Fork of the Snake River upstream of Island Park Reservoir (“Upper Henry’s Fork”) is a popular recreational angling destination and potential cold water refuge in the face of changing climate conditions that has seen a decline fishery quality since the 1980s. To restore and enhance this historically important state fishery, I am working with the non-profit Henrys Fork Foundation and its many NGO, private, and government partners at the local, state, and federal level to conduct good science that will inform future management. On the way, we look to test key underlying theories of stream ecology in the hopes of informing effective stream ecology research and management locally and across the West.

Presentations Presentation Date
McLaren, J. P. Budy, S. Brothers, and R. Van Kirk. Macrophytes and nutrients in a stream system: Utilizing and evaluating the Qual2K model in the Henry’s Fork of the Snake River. Society for Freshwater Science, May 2019, Salt Lake City, UT. May 2019