1. NOAA, National Marine Fisheries Service, Alaska Fisheries Science Center, Auke Bay Laboratories, 17109 Pt. Lena Loop Road, Juneau, Alaska, USA, 99801
2. NOAA, National Marine Fisheries Service, Alaska Fisheries Science Center, Fisheries Behavioral Ecology Program, Hatfield Marine Science Center, Newport, Oregon, USA, 97365
3. Cooperative Institute for Marine Ecosystem and Resources Studies (CIMERS), Oregon State University, Hatfield Marine Science Center, Newport, Oregon, USA, 97365