Chris Frissell is Senior Staff Scientist with the Pacific Rivers Council in Polson, Montana, USA. He has worked on the research faculties of the Flathead Lake Biological Station, the University of Montana, and Oregon State University. His interests include the cumulative, biophysical effects of human activities and natural events on freshwater ecosystems, and the conservation and restoration of montane streams and rivers and their biota. He is author or co-author of numerous papers and book chapters on stream habitat assessment and classification, restoration theory and practice, and the ecology and conservation of native fishes and amphibians.