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Dona Horan

Fish Biologist
Air, Water and Aquatic Environments
322 East Front Street, Suite 401
Boise, ID 83702
United States
Current Research
  • Helping to develop basinscale stream temperature models using ArcGIS and spatial statistical models
  • Developing documentation to assist resource managers to create stream temperature statistical models in their management areas
  • Creating a regional network of ongoing, annual temperature monitoring sites
  • Developing simple, cost-effective methods for deploying long-term stream temperature loggers
Past Research
Fish biology and behavior, as well as the study of habitat quality, are very complex issues. While many attributes have been studied in an attempt to define high-quality fish habitat, stream temperature may be one of the biggest factors influencing their survival.
Research Interest
I am interested in studying the factors that influence fish distribution and persistence. I am curious about the effects of climate change on fish movement and habitat quality, and how the models we're currently developing will reflect what happens in the region's streams over the next few decades. I enjoy helping and supporting resource managers in their development of long-term temperature monitoring networks and stream temperature models.
Why This Research Is Important
  • Studied fish migration using otolith microchemistry
  • Studied effects of fire on fish abundance and distribution
  • University of California, Berkeley, B.S., Wildlife Management, 1992
  • Utah State University, M.S., Fisheries Management, 1996
Featured Publications
Other Publications
Research Highlights

Monitoring the impact of changing climate on western rivers and cold water species

Year: 2018
While coldwater fish such as salmon and trout can adjust to slightly warmer-than-normal temperatures for short periods, abnormally high temperatures for prolonged periods lower oxygen levels, increase the likelihood of deadly diseases, and cause life-threatening physiological stress.

Headwater Streams are Resistant to Trout Hybridization

Year: 2016
Hybridization between native and introduced species is noted as an important player in the decline of native species. The potential for hybridization of westslope cutthroat trout is a major conservation concern for the species. Forest Service scientists found that although the widespread introductio...