About the Authors

Julie M. Andersen

jmandersen77@gmail.com

Affiliation Department of Biology, Memorial University of Newfoundland, St. John's, Canada

Garry B. Stenson

Affiliation Science Branch, Department of Fisheries and Oceans, Northwest Atlantic Fisheries Centre, St. John's, Canada

Mette Skern-Maurizen

Affiliation Marine Mammal Research Department, Institute of Marine Research, Bergen, Norway

Yolanda F. Wiersma

Affiliation Department of Biology, Memorial University of Newfoundland, St. John's, Canada

Aqqalu Rosing-Asvid

Affiliation Greenland Institute of Natural Resources, Nuuk, Greenland

Mike O. Hammill

Affiliation Science Branch, Department of Fisheries and Oceans, Institute du Maurice Lamontang, Mont Joli, Quebec, Canada

Lars Boehme

Affiliation Sea Mammal Research Unit, Scottish Oceans Institute, University of St. Andrews, St. Andrews, Fife, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMA GBS YW MOH ARA MSM LB. Performed the experiments: GBS MOH ARA. Analyzed the data: JMA LB MSM. Contributed reagents/materials/analysis tools: MSM LB YW GBS JMA. Wrote the paper: JMA YW GBS LB. Obtained funding: GBS ARA.