1. Geospatial Ecology of Marine Megafauna Lab, Marine Mammal Institute, and Department of Fisheries and Wildlife, Oregon State University, Newport, Oregon 97365, USA
2. College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, Oregon 97331, USA
3. National Institute of Water and Atmospheric Sciences, Ltd., Wellington 6021, New Zealand
4. Marine Mammal Institute, and Department of Fisheries and Wildlife, Oregon State University, Newport, Oregon 97365, USA