Acknowledgment of funding support

Funding for this research supported by the National Science Foundation through Grant OCE-0527168. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
A portion of this research is supported by the Agouron Institute as a part of the grant 'Microbial Oceanography of the oxygen-deficient waters of the eastern tropical South Pacific.'
Support from the Gordon and Betty Moore Foundation is generously provided for the "Microbial Initiative in Low Oxygen areas off Concepcion and Oregon (MI-LOCO)" project.
NANOOS: The IOOS regional federation "Northwest Association of Networked Ocean Observatories (NANOOS)" provides partial support for glider observations along the Newport Hydrographic Line.