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dc.contributor.authorDucklow, Hugh W.  Concept link
dc.contributor.authorDoney, Scott C.  Concept link
dc.date.accessioned2012-07-27T14:54:14Z
dc.date.available2012-07-27T14:54:14Z
dc.date.issued2012-07
dc.identifier.urihttps://hdl.handle.net/1912/5282
dc.descriptionAuthor Posting. © The Author(s), 2012. This is the author's version of the work. It is posted here by permission of Annual Reviews for personal use, not for redistribution. The definitive version was published in Annual Review of Marine Science 5 (2013):525-533, doi:10.1146/annurev-marine-121211-172331.en_US
dc.description.abstractFor more than a decade there has been controversy in oceanography regarding the metabolic state of the oligotrophic gyres of the open sea. Here we review background on this controversy, commenting on several issues to set the context for a moderated debate between two groups of scientists. In a companion paper, Williams et al (2013) take the view that the oligotrophic subtropical gyres of the global ocean exhibit a state of net autotrophy, that is, the gross primary production (GPP) exceeds community respiration (R), when averaged over some suitably extensive region and over a long duration. Duarte et al (2013) take the opposite view, that the oligotrophic subtropical gyres are net heterotrophic, with R exceeding the GPP. This idea -- that large, remote areas of the upper ocean could be net heterotrophic raises of host of fundamental scientific questions about the metabolic processes of photosynthesis and respiration that underlie ocean ecology and global biogeochemistry. The question remains unresolved, in part, because the net state is finely balanced between large opposing fluxes and most current measurements have large uncertainties. This challenging question must be studied against the background of large, anthropogenically-driven changes in ocean ecology and biogeochemistry Current trends of anthropogenic change make it an urgent problem to solve and also greatly complicate finding that solution.en_US
dc.description.sponsorshipThe authors acknowledge support from the U.S. National Science Foundation through the Center for Microbial Oceanography Research and Education (C-MORE), an NSF Science and Technology Center (EF-0424599), and NSF award OPP 0823101 (Palmer LTER) from the Antarctic Organisms and Ecosystems Program.en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.relation.urihttps://doi.org/10.1146/annurev-marine-121211-172331
dc.subjectNet heterotrophyen_US
dc.subjectNet autotrophyen_US
dc.subjectNet community productionen_US
dc.subjectOligotrophic gyresen_US
dc.subjectOxygenen_US
dc.titleWhat is the metabolic state of the oligotrophic ocean? A debateen_US
dc.typePreprinten_US


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