Depth Dependent Relationships between Temperature and Ocean Heterotrophic Prokaryotic Production

Handle URI:
http://hdl.handle.net/10754/622704
Title:
Depth Dependent Relationships between Temperature and Ocean Heterotrophic Prokaryotic Production
Authors:
Lønborg, Christian; Cuevas, L. Antonio; Reinthaler, Thomas; Herndl, Gerhard J.; Gasol, Josep M.; Moran, Xose Anxelu G. ( 0000-0002-9823-5339 ) ; Bates, Nicholas R.; álvarez-Salgado, Xosé A.
Abstract:
Marine 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.
KAUST Department:
Red Sea Research Center (RSRC)
Citation:
Lønborg 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.
Publisher:
Frontiers Media SA
Journal:
Frontiers in Marine Science
Issue Date:
7-Jun-2016
DOI:
10.3389/fmars.2016.00090
Type:
Article
ISSN:
2296-7745
Sponsors:
Financial 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.
Additional Links:
http://journal.frontiersin.org/article/10.3389/fmars.2016.00090/full
Appears in Collections:
Articles; Red Sea Research Center (RSRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorLønborg, Christianen
dc.contributor.authorCuevas, L. Antonioen
dc.contributor.authorReinthaler, Thomasen
dc.contributor.authorHerndl, Gerhard J.en
dc.contributor.authorGasol, Josep M.en
dc.contributor.authorMoran, Xose Anxelu G.en
dc.contributor.authorBates, Nicholas R.en
dc.contributor.authorálvarez-Salgado, Xosé A.en
dc.date.accessioned2017-01-22T10:45:41Z-
dc.date.available2017-01-22T10:45:41Z-
dc.date.issued2016-06-07en
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.en
dc.identifier.issn2296-7745en
dc.identifier.doi10.3389/fmars.2016.00090en
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.en
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.en
dc.publisherFrontiers Media SAen
dc.relation.urlhttp://journal.frontiersin.org/article/10.3389/fmars.2016.00090/fullen
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.en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectActivation energyen
dc.subjectArrhenius lawen
dc.subjectGlobal warmingen
dc.subjectOpen oceanen
dc.subjectProkaryotic productionen
dc.titleDepth Dependent Relationships between Temperature and Ocean Heterotrophic Prokaryotic Productionen
dc.typeArticleen
dc.contributor.departmentRed Sea Research Center (RSRC)en
dc.identifier.journalFrontiers in Marine Scienceen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionAustralian Institute of Marine Science, Townsville, QLD, Australiaen
dc.contributor.institutionEnvironmental Science Faculty, EULA-University of Concepción, Concepción, Chileen
dc.contributor.institutionDepartment of Limnology and Bio-Oceanography, Center of Ecology, University of Vienna, Vienna, Austriaen
dc.contributor.institutionDepartment of Biological Oceanography, Royal Netherlands Institute for Sea Research, AB Den Burg, Netherlandsen
dc.contributor.institutionICM-CSIC, Institut de Ciències del Mar, Barcelona, Spainen
dc.contributor.institutionDepartment of Oceanography, Bermuda Institute of Ocean Sciences, St. Georges, Bermudaen
dc.contributor.institutionIIM-CSIC, Instituto de Investigacións Mariñas, Vigo, Spainen
kaust.authorMoran, Xose Anxelu G.en
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