Robert Al-Chokhachy

Research Fish Biologist
NOROCK Headquarters


US Geological Survey
Northern Rocky Mountain Science Center
2327 University Way, Suite 2
Bozeman, MT 59715

Phone 409-994-7842
Fax 406-994-6556

Ph.D. Aquatic Ecology. Utah State University

B.S. Biology. University of Utah

B.A. Economics. Bates College

Salmonid ecology, land-management impacts on headwater streams, capture-recapture methods to understand species behavior and ecology.

Research interests:
I am a research fisheries biologist with the U.S. Geological Survey’s Northern Rocky Mountain Science Center and an adjunct faculty in the Ecology Department at Montana State University in Bozeman, MT. I am an applied biologist with goals of providing robust information to inform the management and conservation of aquatic ecosystems. My specific research focuses on improving our understanding of how natural and anthropogenic disturbances influence aquatic ecosystems, the interactions between native and non-native species, and how the life-history patterns and template of aquatic systems will be altered under anticipated changes in global and regional climates. Within this framework my research program consists of a combination of field studies and analytical studies to advance conservation and management and at the same time develop new paradigms in aquatic ecology. My research is built upon a premise of strong collaboration and interaction to facilitate effective research.

Mendenhall Project Title: Forecasting the Effects of Climate Change on the Interactions of Native and Nonnative Salmonids.