1. National Marine Mammal Foundation, San Diego, CA, USA.
2. Cetacean Specialist Group, International Union for Conservation of Nature, San Diego, CA, USA.
3. Marine Mammal Commission, Bethesda, MD, USA.
4. Nicholas School of the Environment, Duke University, Beaufort, NC, USA.
5. Marine Mammal Institute, Oregon State University, Newport, OR, USA.
6. Haddenham, UK.
7. Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanographic and Atmospheric Administration (NOAA), La Jolla, CA, USA.
8. Laguna San Ignacio Ecosystem Science Program, Universidad Autónoma de Baja California Sur, La Paz, BCS, Mexico.
9. San Diego, CA, USA.