1. School of Aquatic and Fishery Sciences University of Washington Box 355020 Seattle WA 98195 USA
2. Northwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 2725 Montlake Boulevard East Seattle WA 98112 USA
3. Flathead Lake Biological Station University of Montana 32125 Bio Station Lane Polson MT 59860‐6815 USA
4. Alaska Department of Fish and Game 333 Raspberry Road Anchorage AK 99518 USA
5. Fisheries and Oceans Canada Pacific Biological Station 3190 Hammond Bay Road Nanaimo BC V9T 6N7 Canada
6. Southwest Fisheries Science Center National Marine Fisheries Service National Oceanic and Atmospheric Administration 110 Shaffer Road Santa Cruz CA 95060 USA