About the Authors

Douglas J. Krause

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

douglas.krause@noaa.gov

Affiliation Antarctic Ecosystem Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, California, United States of America

Jefferson T. Hinke

Roles Data curation, Formal analysis, Investigation, Project administration, Resources, Software, Supervision, Writing – review & editing

Affiliation Antarctic Ecosystem Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, California, United States of America

Wayne L. Perryman

Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Project administration, Resources, Writing – review & editing

Affiliation Marine Mammal and Turtle Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, California, United States of America

Michael E. Goebel

Roles Funding acquisition, Resources, Writing – review & editing

Affiliation Antarctic Ecosystem Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, California, United States of America

Donald J. LeRoi

Roles Methodology, Resources, Software, Writing – review & editing

Affiliation Aerial Imaging Solutions, LLC, Old Lyme, Connecticut, United States of America

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests:Co-author Donald J. LeRoi is the owner of Aerial Imaging Solutions LLC, which produces the APH-22 drone used in the experiments. His technical knowledge was invaluable to the design of the study, therefore he deserves co-authorship credit; however, he was not involved in the execution of the study, data analysis or interpretation and writing. As lead author of the study I certify to the editorial staff that he did not attempt to influence the results of the study in any way. And, this does not alter our adherence to PLOS ONE policies on sharing data and materials.