1. Division of Natural Sciences, New College of Florida, Sarasota, Florida 34243, USA
2. Department of Animal Biology and Physiology, University of Yaounde I, Yaoundé, Cameroon
3. Fundación Internacional para la Naturaleza y la Sustentabilidad (FINS), Chetumal, Quintana Roo, Mexico
4. Mote Marine Laboratory, Sarasota, Florida 34236, USA
5. Japan Manatee Education and Study Lab, Tokyo, JP 1040041, Japan
6. African Marine Mammal Conservation Organization, Dizangue, Littoral, Cameroon