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dc.contributor.authorBock, N.
dc.contributor.authorCornec, M.
dc.contributor.authorClaustre, H.
dc.contributor.authorDuhamel, S.
dc.date.accessioned2022-08-01T20:16:07Z
dc.date.available2022-08-01T20:16:07Z
dc.date.issued2022
dc.identifier.citationBock, N., Cornec, M., Claustre, H., & Duhamel, S. (2022). Biogeographical Classification of the Global Ocean From BGC-Argo Floats. Global Biogeochemical Cycles, 36(6).
dc.identifier.issn0886-6236
dc.identifier.doi10.1029/2021GB007233
dc.identifier.urihttp://hdl.handle.net/10150/665465
dc.description.abstractBiogeographical classifications of the global ocean generalize spatiotemporal trends in species or biomass distributions across discrete ocean biomes or provinces. These classifications are generally based on a combination of remote-sensed proxies of phytoplankton biomass and global climatologies of biogeochemical or physical parameters. However, these approaches are limited in their capacity to account for subsurface variability in these parameters. The deployment of autonomous profiling floats in the Biogeochemical Argo network over the last decade has greatly increased global coverage of subsurface measurements of bio-optical proxies for phytoplankton biomass and physiology. In this study, we used empirical orthogonal function analysis to identify the main components of variability in a global data set of 422 annual time series of Chlorophyll a fluorescence and optical backscatter profiles. Applying cluster analysis to these results, we identified six biomes within the global ocean: two high-latitude biomes capturing summer bloom dynamics in the North Atlantic and Southern Ocean and four mid- and low-latitude biomes characterized by variability in the depth and frequency of deep chlorophyll maximum formation. We report the distribution of these biomes along with associated trends in biogeochemical and physicochemical environmental parameters. Our results demonstrate light and nutrients to explain most variability in phytoplankton distributions for all biomes, while highlighting a global inverse relationship between particle stocks in the euphotic zone and transfer efficiency into the mesopelagic zone. In addition to partitioning seasonal variability in vertical phytoplankton distributions at the global scale, our results provide a potentially novel biogeographical classification of the global ocean. © 2022. The Authors.
dc.language.isoen
dc.publisherJohn Wiley and Sons Inc
dc.rightsCopyright © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License.
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectBGC-Argo
dc.subjectbio-optical proxies
dc.subjectmarine biogeography
dc.subjectphytoplankton community structure
dc.titleBiogeographical Classification of the Global Ocean From BGC-Argo Floats
dc.typeArticle
dc.typetext
dc.contributor.departmentDepartment of Molecular and Cellular Biology, University of Arizona
dc.identifier.journalGlobal Biogeochemical Cycles
dc.description.noteOpen access article
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleGlobal Biogeochemical Cycles
refterms.dateFOA2022-08-01T20:16:07Z


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Copyright © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License.
Except where otherwise noted, this item's license is described as Copyright © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License.