1. Resource Ecology and Fisheries Management Division, Alaska Fisheries Science Center, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, 7600 Sand Point Way NE, Seattle, WA 98115, USA
2. School of Fisheries and Ocean Sciences, 315 Lena Point, 17101 Pt. Lena Loop Rd, Juneau, AK 99801, USA
3. Joint Institute for the Study of Atmosphere and Ocean, University of Washington, Box 354925, Seattle, WA 98195, USA