1. Department of Evolutionary Biology, Ecology and Environmental Sciences, and Institute of Biodiversity (IRBio) University of Barcelona Barcelona Spain
2. Morigenos ‐ Slovenian Marine Mammal Society Piran Slovenia
3. Sea Mammal Research Unit, Scottish Oceans Institute University of St Andrews UK
4. iSea, Environmental Organization for the Preservation of the Aquatic Ecosystems Thessaloníki Greece
5. Tethys Research Institute Milan Italy