1. Sound and Behaviour Group, Department of Biology; University of Southern Denmark; Odense Denmark
2. Accademia del Leviatano; Rome Italy
3. Cetacean Research Unit, School of Veterinary and Life Sciences; Murdoch University; Murdoch Western Australia Australia
4. School of Mathematics; Washington State University; Vancouver, WA Washington USA
5. Mysticetus LLC; Seattle, WA Washington USA
6. University of Alaska Southeast; Department of Natural Sciences; Juneau Alaska USA