About the Authors

Tara A. Macdonald

tara@biologica.bc.ca

Affiliations Institute of Ocean Sciences, Department of Fisheries and Oceans, Sidney, British Columbia, Canada, Biologica Environmental Services, Victoria, British Columbia, Canada

Brenda J. Burd

Affiliations Institute of Ocean Sciences, Department of Fisheries and Oceans, Sidney, British Columbia, Canada, Ecostat Research Limited, North Saanich, British Columbia, Canada

Albert van Roodselaar

Affiliation Metro Vancouver, Burnaby, British Columbia, Canada

Competing Interests

The authors have read the journal's policy and have the following conflicts: The small owner-operated environmental consulting companies Biologica Environmental Services Ltd. and Ecostat Research Ltd. (employing authors TAM and BJB respectively) do not have any financial or professional interests that would jeopardize the full and objective presentation of data and ideas in this paper. The authors TAM and BJB are under contract to assist with the production of primary research that fulfills the mandate of the Ambient Monitoring Program, a collaborative agreement between Metro Vancouver (formerly the Greater Vancouver Regional District) and the Department of Fisheries and Oceans (Government of Canada). This project requires the objective and full peer-reviewed publication of research on which to base future long-term monitoring, and examinations of anthropogenic impacts and climate change in the Strait of Georgia, British Columbia, Canada. Both funding parties have committed to the free publication of this research. The publication of this manuscript would not result in any financial gain or loss to the authors or any affiliated organization. These affiliations do not alter the authors' adherence to PLoS ONE policies on data and material sharing.

Author Contributions

Conceived and designed the experiments: TAM BJB AvR. Performed the experiments: TAM BJB. Analyzed the data: TAM BJB. Contributed reagents/materials/analysis tools: TAM BJB. Wrote the paper: TAM BJB. Edited paper: TAM BJB AvR.