About the Authors

Paul B. Conn

paul.conn@noaa.gov

Affiliation National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, Seattle, Washington, United States of America

Jeffrey L. Laake

Affiliation National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, Seattle, Washington, United States of America

Devin S. Johnson

Affiliation National Marine Mammal Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, Seattle, Washington, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PBC JLL DSJ. Performed the experiments: PBC. Analyzed the data: PBC. Contributed reagents/materials/analysis tools: PBC DSJ JLL. Wrote the paper: PBC JLL DSJ. Designed the software used in analysis: PBC.