Clint Muhlfeld, Ph.D.
I am a Research Aquatic Ecologist for the USGS Northern Rocky Mountain Science Center stationed in Glacier National Park.
Research interests
I specialize in aquatic ecology, fisheries biology, ecohydrology, and conservation biology. My research focuses on understanding the complex interactions between aquatic species and their environments to guide conservation and management of freshwater fisheries and ecosystems. I focus on how human-driven stressors—such as drought, invasive species, and habitat degradation—impact native trout, valuable recreational fisheries, and freshwater ecosystems, particularly in the northern Rocky Mountains of the United States.
My research addresses various scientific and conservation issues, including:
- Predicting the impacts of environmental changes on native trout and their freshwater habitats
- Evaluating the effects of invasive species on native fishes and ecosystem health
- Conducting ecohydrological assessments of drought and water management impacts
- Investigating life history and genetic diversity of native salmonids
- Assessing the status, threats, and conservation of threatened species to inform management needs
I am passionate about multidisciplinary science collaboration and enjoy mentoring graduate students in fisheries and freshwater ecology. I also contribute to regional, national, and international science teams focused on transboundary river management and the sustainable use of freshwater resources. My ultimate goal is to conserve native species and ecosystems for future generations through research-informed management and education.
Education and Certifications
Ph.D. 2008. Fish and Wildlife Biology, Montana State University, Bozeman
M.S. 1999. Fishery Resources, University of Idaho, Moscow
B.S. 1994. Aquatic Biology, University of Montana, Missoula; University of Maine, Orono
Science and Products
Global status of trout and char: Conservation challenges in the twenty-first century
Consistent compensatory growth offsets poor condition in trout populations
Microbial assemblages reflect environmental heterogeneity in alpine streams
An integrated framework for ecological drought across riverscapes of North America
Challenges in Columbia River fisheries conservation: Response to Duda et al.
Congruent population genetic structure but differing depths of divergence for three alpine stoneflies with similar ecology and geographic distributions
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Integrated bioassessment of imperiled alpine aquatic ecosystems using NPS vital signs and USGS research data: Implications for conservation under a warming climate
Evaluation of alternative dam operations on the movement and habitat use of bull trout and westslope cutthroat trout
Webinar: Predicting Climate Change Impacts on Aquatic Ecosystems across the Pacific Northwest
The Past as a Prelude to the Future: Assessing Climate Effects on Native Trout in the U.S.
Predicting Climate Change Impacts on River Ecosystems and Salmonids across the Pacific Northwest
Science and Products
Global status of trout and char: Conservation challenges in the twenty-first century
Consistent compensatory growth offsets poor condition in trout populations
Microbial assemblages reflect environmental heterogeneity in alpine streams
An integrated framework for ecological drought across riverscapes of North America
Challenges in Columbia River fisheries conservation: Response to Duda et al.
Congruent population genetic structure but differing depths of divergence for three alpine stoneflies with similar ecology and geographic distributions
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.