Jack G. Imhof joined Trout Unlimited Canada as their National Biologist in January 2002. Jack has 23 years of experience as an aquatic ecologist, 22 of these years employed by the Fish and Wildlife Branch of the Ontario Ministry of Natural Resources as an aquatic ecologist and research scientist.

Jack is responsible for the development and implementation of a National Conservation Strategy for Trout Unlimited Canada. His expertise includes: policy and program development related to watershed aquatic ecosystems; fish habitat management and fish habitat rehabilitation, including the development of Integrated Watershed Management Planning initiatives, policy, guidelines; relationships between aquatic ecosystems, fish habitat and groundwater/surface water interactions; riparian science and application; and science synthesis and methodology development for the Natural Channel Systems Initiative. From a research perspective, Jack is involved in examining the biophysical relationships of watersheds, rivers, streams and lakes, the relationships between riparian ecosystems and aquatic ecosystems and the development of standardized habitat assessment protocols and habitat classification in support of the policy initiatives.

Jack is an active member of the American Fisheries Society parent organization and Southern Ontario Chapter as well as an avid fly fisher. He received the Roderick Haig-Brown Award for excellence in Fish Habitat Restoration in 1982 and 1999 from the Izaak Walton Fly Fishing Club. He is a recipient of the first Award of Excellence in Fisheries Science presented by the Southern Ontario Chapter of the AFS. Jack was awarded a Travelling Fellowship Grant in Holistic River Restoration from the Lands and Waters Resources Research Development Corporation of Australia in 1999. Most recently Jack was invited as one of three major speakers to the VI Congress on Salmonid Sport Fishing and Management in Junin de los Andes, Patagonia, Argentina.