1. Sea Mammal Research Unit & Scottish Oceans Institute, University of St Andrews, St Andrews KY16 8LB, UK
2. Centre for Research into Ecological and Environment Modelling, University of St Andrews, St Andrews KY16 9LZ, UK
3. Instituto Aqualie, Juiz de Fora 36036-330, MG, Brazil
4. Cooperative Institute for Climate, Ocean and Ecosystem Studies, University of Washington & Marine Mammal Laboratory, Alaska Fisheries Science Center, Seattle, WA 98115, USA
5. Marine Ecology and Telemetry Research, Seabeck, WA 98380, USA
6. Laboratório de Ecologia Comportamental e Bioacústica, Programa de Pós-graduação em Biodiversidade e Conservação da Natureza, Universidade Federal de Juiz de Fora, Juiz de Fora 36036-900, MG, Brazil