About the Authors

Elizabeth H. Sinclair

Contributed equally to this work with: Elizabeth H. Sinclair, William A. Walker, James R. Thomason

beth.sinclair@noaa.gov

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

William A. Walker

Contributed equally to this work with: Elizabeth H. Sinclair, William A. Walker, James R. Thomason

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

James R. Thomason

Contributed equally to this work with: Elizabeth H. Sinclair, William A. Walker, James R. Thomason

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ES WAW JRT. Performed the experiments: ES WAW JRT. Analyzed the data: ES WAW JRT. Contributed reagents/materials/analysis tools: ES WAW JRT. Wrote the paper: ES WAW JRT.