Thomas Quinn is a leading authority on salmon and trout. For decades, he has served as one of the principal researchers for the UW Alaska Salmon Program, where his research into salmon ecology has helped to reveal many of the patterns and processes in the behavior of salmonids. He has used a wide variety of laboratory, field, and analytical approaches to pursue diverse research themes related to salmon migration, homing, evolution, and reproduction, including work on all species, and in stream, lake, and marine habitats. His work on bear predation has revealed the complex relationship between bears and salmon, including the role bears play in transferring salmon carcasses to stream edges, where they are consumed by a variety of organisms. Closer to Seattle, he has studied the re-colonization of salmon on previously inaccessible rivers, including the Elwha River on the Olympic Peninsula, and the movements of salmon and trout in Puget Sound. He has won numerous teaching awards at UW, and has been elected a Member of the Washington State Academy of Sciences.