B D Walther1, K E Limburg2, C M Jones3, J J Schaffler4. 1. Department of Life Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, U.S.A. 2. Department of Environmental and Forest Biology, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, U.S.A. 3. Center for Quantitative Fisheries Ecology, Old Dominion University, Norfolk, VA 23529, U.S.A. 4. Muckleshoot Indian Tribe, 39015 172nd Ave SE, Auburn, WA 98092, U.S.A.