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dc.contributor.authorLønborg, Christian
dc.contributor.authorCuevas, L. Antonio
dc.contributor.authorReinthaler, Thomas
dc.contributor.authorHerndl, Gerhard J.
dc.contributor.authorGasol, Josep M.
dc.contributor.authorMoran, Xose Anxelu G.
dc.contributor.authorBates, Nicholas R.
dc.contributor.authorálvarez-Salgado, Xosé A.
dc.date.accessioned2017-01-22T10:45:41Z
dc.date.available2017-01-22T10:45:41Z
dc.date.issued2016-06-07
dc.identifier.citationLønborg C, Cuevas LA, Reinthaler T, Herndl GJ, Gasol JM, et al. (2016) Depth Dependent Relationships between Temperature and Ocean Heterotrophic Prokaryotic Production. Frontiers in Marine Science 3. Available: http://dx.doi.org/10.3389/fmars.2016.00090.
dc.identifier.issn2296-7745
dc.identifier.doi10.3389/fmars.2016.00090
dc.identifier.urihttp://hdl.handle.net/10754/622704
dc.description.abstractMarine prokaryotes play a key role in cycling of organic matter and nutrients in the ocean. Using a unique dataset (>14,500 samples), we applied a space-for-time substitution analysis to assess the temperature dependence of prokaryotic heterotrophic production (PHP) in epi- (0-200 m), meso- (201-1000 m) and bathypelagic waters (1001-4000 m) of the global ocean. Here, we show that the temperature dependence of PHP is fundamentally different between these major oceanic depth layers, with an estimated ecosystem-level activation energy (E) of 36 ± 7 kJ mol for the epipelagic, 72 ± 15 kJ mol for the mesopelagic and 274 ± 65 kJ mol for the bathypelagic realm. We suggest that the increasing temperature dependence with depth is related to the parallel vertical gradient in the proportion of recalcitrant organic compounds. These Ea predict an increased PHP of about 5, 12, and 55% in the epi-, meso-, and bathypelagic ocean, respectively, in response to a water temperature increase by 1°C. Hence, there is indication that a major thus far underestimated feedback mechanism exists between future bathypelagic ocean warming and heterotrophic prokaryotic activity.
dc.description.sponsorshipFinancial support for this project was provided by the Australian Institute of Marine Science (AIMS) and a grant from the Carlsberg Foundation to CL. XA, XM and JG were funded by the Malaspina expedition 2010 (grant n° CSD2008-00077) and HOTMIX (grant n° CTM2011-30010-C02-02) projects. TR was supported by the PADOM project (Austrian Science Fund grant n° P23221-B11). GH was funded by the Austrian Science Fund (FWF) project I486-B09 and by the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013)/ERC grant agreement No. 268595 (MEDEA project). We thank A. Gomes and the scientists and technicians on board Malaspina for their help. The British Oceanographic Data Centre (BODC) is acknowledged for supplying data for this analysis. We also acknowledge the large efforts made by Hugh Ducklow and David L. Kirchman and their teams in generating the data of the US JGFOS program. The data providers at the Bermuda Atlantic Time-Series Study (BATS) and Cariaco Basin Time-Series (CARIACO) are also acknowledged. A part of the Mediterranean data was obtained through the Biosope project funded through CNRS-INSU grants. Murray Logan is thanked for his input on using linear regression in R.
dc.publisherFrontiers Media SA
dc.relation.urlhttp://journal.frontiersin.org/article/10.3389/fmars.2016.00090/full
dc.rightsThis is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectActivation energy
dc.subjectArrhenius law
dc.subjectGlobal warming
dc.subjectOpen ocean
dc.subjectProkaryotic production
dc.titleDepth Dependent Relationships between Temperature and Ocean Heterotrophic Prokaryotic Production
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentMarine Science Program
dc.contributor.departmentRed Sea Research Center (RSRC)
dc.identifier.journalFrontiers in Marine Science
dc.eprint.versionPublisher's Version/PDF
dc.contributor.institutionAustralian Institute of Marine Science, Townsville, QLD, Australia
dc.contributor.institutionEnvironmental Science Faculty, EULA-University of Concepción, Concepción, Chile
dc.contributor.institutionDepartment of Limnology and Bio-Oceanography, Center of Ecology, University of Vienna, Vienna, Austria
dc.contributor.institutionDepartment of Biological Oceanography, Royal Netherlands Institute for Sea Research, AB Den Burg, Netherlands
dc.contributor.institutionICM-CSIC, Institut de Ciències del Mar, Barcelona, Spain
dc.contributor.institutionDepartment of Oceanography, Bermuda Institute of Ocean Sciences, St. Georges, Bermuda
dc.contributor.institutionIIM-CSIC, Instituto de Investigacións Mariñas, Vigo, Spain
kaust.personMoran, Xose Anxelu G.
refterms.dateFOA2018-06-13T15:34:56Z


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This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Except where otherwise noted, this item's license is described as This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.