About the Authors

Shawn Larson

s.larson@seattleaquarium.org

Affiliation Seattle Aquarium, Seattle, Washington, United States of America

Debbie Farrer

‡ Retired

Affiliation Washington Department of Fish and Wildlife, Washington, United States of America

Dayv Lowry

Affiliation Washington Department of Fish and Wildlife, Washington, United States of America

David A. Ebert

Affiliation Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SL DF. Performed the experiments: SL DF. Analyzed the data: SL DL DE. Contributed reagents/materials/analysis tools: SL DF. Wrote the paper: SL DF DL DE.