1. Marine Mammal Conservation Program, Associação de Pesquisa e Preservação de Ecossistemas Aquáticos Caucaia Ceará Brazil
2. Tropical Marine Sciences Graduate Program, Marine Sciences Institute Ceará Federal University Fortaleza Ceará Brazil
3. Department of Zoology Paraná Federal University Curitiba Paraná Brazil
4. Instituto de Pesquisas Cananéia Cananéia São Paulo Brazil
5. Oceanographic Institute University of São Paulo São Paulo São Paulo Brazil