1. School of Aquatic and Fishery Sciences, University of Washington 1122 NE Boat Street Seattle, Washington 98105 U.S.A.
2. Polar Science Center, Applied Physics LaboratoryUniversity of Washington 1013 NE 40th Street Seattle, Washington 98105 U.S.A.
3. Department of Ecology and Evolutionary BiologyUniversity of California, Center for Ocean Health 100 Scheffer Road Santa Cruz, California 95060 U.S.A.
4. Nhydra Ecological Consulting, Head of St. Margaret's Bay Nova Scotia B3Z 2E1 Canada
5. United States Geological SurveyWestern Ecological Research Center 7801 Folsom Boulevard, Suite 101 Sacramento, California 95826 U.S.A.
6. Washington Department of Fish and Wildlife, Wildlife Science Program, Marine Mammal Investigations 7801 Phillips Road SW Lakewood, Washington 98498 U.S.A.
7. Seattle Aquarium 1483 Alaskan Way Seattle, Washington 98101 U.S.A.
8. U.S. Geological Survey, Alaska Science Center 4210 University Drive Anchorage, Alaska 99508 U.S.A