1. International Arctic Research Center (IARC), University of Alaska Fairbanks, Fairbanks, AK 99775, USA
2. Threatened, Endangered, and Diversity Program, Alaska Department of Fish and Game, Fairbanks, AK 99701, USA
3. Marine Mammals Management, US Fish and Wildlife Service, Anchorage, AK 99503, USA
4. Alaska Center for Conservation Science, University of Alaska Anchorage, Anchorage, AK 99508, USA
5. US Fish and Wildlife Service, Fairbanks, AK 99701, USA