Mark Wipfli (pronounced wiff´-lee) received his Master’s degree in Entomology from the University of Wisconsin-Madison, and his Ph.D. in aquatic ecology and environmental toxicology from Michigan State University. He was employed with the Pacific Northwest Research Station as a Research Ecologist for nine years in Juneau, Alaska, and for two years in Wenatchee, Washington. He is currently an associate professor with the University of Alaska and the assistant Unit leader the USGS Cooperative Fish and Wildlife Research Unit in Fairbanks. Dr. Wipfli’s research interests include aquatic-riparian interactions, freshwater foodwebs, understanding how riparian forests affect aquatic productivity, and understanding the role of marine-derived nutrients in salmonid ecosystems.