Affiliation: | a National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, 7600 Sand Point Way NE, Seattle, WA 98115 USA b University of Alaska Fairbanks, School of Fisheries and Ocean Sciences, Juneau Center, 17101 Pt. Lena Loop Road, Juneau, AK 99801, USA c Fisheries and Oceans Canada, Pacific Biological Station, 3190 Hammond Bay Rd., Nanaimo, British Columbia V9T 6N7 Canada |