1. Montana State University Ecology Department Bozeman Montana USA
2. The Cook Inlet Beluga Whale Photo‐ID Project Anchorage Alaska USA
3. School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA
4. U.S. Geological Survey Alaska Science Center Anchorage Alaska USA
5. U.S. Geological Survey, Washington Cooperative Fish and Wildlife Research Unit, School of Environmental and Forest Sciences & School of Aquatic and Fishery Sciences University of Washington Seattle Washington USA