About the Authors

Andrew R. Gates


Affiliation Ocean Biogeochemistry and Ecosystems Group, National Oceanography Centre, Southampton, United Kingdom

Daniel O. B. Jones

Competing Interests

Statoil ASA provided funds and ship time for this work. 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: AG DJ. Performed the experiments: AG. Analyzed the data: AG DJ. Contributed reagents/materials/analysis tools: AG DJ. Wrote the paper: AG DJ.