About the Authors

Katherine L. Ayres

kayres@harveyecology.com

Current address: H.T. Harvey & Associates, Fresno, California, United States of America

Affiliation Despartment of Biology, Center for Conservation Biology, University of Washington, Seattle, Washington, United States of America

Rebecca K. Booth

Affiliation Despartment of Biology, Center for Conservation Biology, University of Washington, Seattle, Washington, United States of America

Jennifer A. Hempelmann

Affiliation National Marine Fisheries Service, Northwest Fisheries Science Center, Seattle, Washington, United States of America

Kari L. Koski

Affiliation Soundwatch Boater Education Program, The Whale Museum, Friday Harbor, Washington, United States of America

Candice K. Emmons

Affiliation National Marine Fisheries Service, Northwest Fisheries Science Center, Seattle, Washington, United States of America

Robin W. Baird

Affiliation Cascadia Research Collective, Olympia, Washington, United States of America

Kelley Balcomb-Bartok

Affiliation Renton City Hall, Renton, Washington, United States of America

M. Bradley Hanson

Affiliation National Marine Fisheries Service, Northwest Fisheries Science Center, Seattle, Washington, United States of America

Michael J. Ford

Affiliation National Marine Fisheries Service, Northwest Fisheries Science Center, Seattle, Washington, United States of America

Samuel K. Wasser

Affiliation Despartment of Biology, Center for Conservation Biology, University of Washington, Seattle, Washington, United States of America

Competing Interests

Authors Michael J. Ford and M. Bradley Hanson were partially responsible for funding decisions from Northwest Fisheries Science Center. Washington SeaGrant is also administered by NOAA, however the NOAA employees that are authors on this paper were not directly involved with SeaGrant funding decisions. Funding from this agency was a major part of funding this research. Authors Katherine Ayres, Rebecca Booth and Samuel Wasser work for the Center for Conservation Biology, which also partially funded this work. Author Kari Koski is an employee for the Soundwatch Boater Education program that provided the vessel traffic data for this research. Soundwatch is a boater education program that often consults on vessel regulations decisions based on their monitoring research. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: KLA SKW. Performed the experiments: KLA RKB JAH. Analyzed the data: KLA SKW RKB JAH MJF. Contributed reagents/materials/analysis tools: KLA SKW CKE KK MBH RWB MJF JAH KBB. Wrote the paper: KLA SKW MJF. Provided significant efforts in field work and data collection: MBH CKE RWB KBB KK. Provided comments and feedback on the manuscript: RWB KK CKE MBH. Provided significant field support and assistance: KBB KK.