About the Authors

Ana Rita Luís

aluis@ispa.pt

Affiliations MARE–Marine and Environmental Sciences Centre, ISPA–Instituto Universitário, Lisboa, Portugal, Projecto Delfim–Centro Português de Estudo dos Mamíferos Marinhos, Lisboa, Portugal

Miguel N. Couchinho

Affiliations MARE–Marine and Environmental Sciences Centre, ISPA–Instituto Universitário, Lisboa, Portugal, Projecto Delfim–Centro Português de Estudo dos Mamíferos Marinhos, Lisboa, Portugal

Manuel E. dos Santos

Affiliations MARE–Marine and Environmental Sciences Centre, ISPA–Instituto Universitário, Lisboa, Portugal, Projecto Delfim–Centro Português de Estudo dos Mamíferos Marinhos, Lisboa, Portugal

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ARL MNC MES. Performed the experiments: ARL MNC MES. Analyzed the data: ARL. Wrote the paper: ARL MNC MES.