Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls

9 pages, 3 figures, supporting information https://dx.doi.org/10.1111/gcb.13730

Detalles Bibliográficos
Autores: Morán, Xosé Anxelu G., Gasol, Josep M., Pernice, Massimo, Mangot, Jean-François, Massana, Ramon, Lara, Elena, Vaqué, Dolors, Duarte, Carlos M.
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/158619
Acceso en línea:http://hdl.handle.net/10261/158619
Access Level:acceso abierto
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spelling Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controlsMorán, Xosé Anxelu G.Gasol, Josep M.Pernice, MassimoMangot, Jean-FrançoisMassana, RamonLara, ElenaVaqué, DolorsDuarte, Carlos M.9 pages, 3 figures, supporting information https://dx.doi.org/10.1111/gcb.13730Planktonic heterotrophic prokaryotes make up the largest living biomass and process most organic matter in the ocean. Determining when and where the biomass and activity of heterotrophic prokaryotes are controlled by resource availability (bottom-up), predation and viral lysis (top-down) or temperature will help in future carbon cycling predictions. We conducted an extensive survey across subtropical and tropical waters of the Atlantic, Indian and Pacific Oceans during the Malaspina 2010 Global Circumnavigation Expedition and assessed indices for these three types of controls at 109 stations (mostly from the surface to 4,000 m depth). Temperature control was approached by the apparent activation energy in eV (ranging from 0.46 to 3.41), bottom-up control by the slope of the log-log relationship between biomass and production rate (ranging from −0.12 to 1.09) and top-down control by an index that considers the relative abundances of heterotrophic nanoflagellates and viruses (ranging from 0.82 to 4.83). We conclude that temperature becomes dominant (i.e. activation energy >1.5 eV) within a narrow window of intermediate values of bottom-up (0.3–0.6) and top-down 0.8–1.2) controls. A pervasive latitudinal pattern of decreasing temperature regulation towards the Equator, regardless of the oceanic basin, suggests that the impact of global warming on marine microbes and their biogeochemical function will be more intense at higher latitudes. Our analysis predicts that 1°C ocean warming will result in increased biomass of heterotrophic prokaryoplankton only in waters with <26°C of mean annual surface temperatureThis study was funded by the Malaspina 2010 Global Circumnavigation Expedition (Consolider-Ingenio 2010 grant CSD2008-00077)Peer ReviewedWiley-BlackwellConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720172017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/158619reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://dx.doi.org/10.1111/gcb.13730Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1586192026-05-22T06:33:51Z
dc.title.none.fl_str_mv Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
title Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
spellingShingle Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
Morán, Xosé Anxelu G.
title_short Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
title_full Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
title_fullStr Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
title_full_unstemmed Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
title_sort Temperature regulation of marine heterotrophic prokaryotes increases latitudinally as a breach between bottom-up and top-down controls
dc.creator.none.fl_str_mv Morán, Xosé Anxelu G.
Gasol, Josep M.
Pernice, Massimo
Mangot, Jean-François
Massana, Ramon
Lara, Elena
Vaqué, Dolors
Duarte, Carlos M.
author Morán, Xosé Anxelu G.
author_facet Morán, Xosé Anxelu G.
Gasol, Josep M.
Pernice, Massimo
Mangot, Jean-François
Massana, Ramon
Lara, Elena
Vaqué, Dolors
Duarte, Carlos M.
author_role author
author2 Gasol, Josep M.
Pernice, Massimo
Mangot, Jean-François
Massana, Ramon
Lara, Elena
Vaqué, Dolors
Duarte, Carlos M.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description 9 pages, 3 figures, supporting information https://dx.doi.org/10.1111/gcb.13730
publishDate 2017
dc.date.none.fl_str_mv 2017
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/158619
url http://hdl.handle.net/10261/158619
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://dx.doi.org/10.1111/gcb.13730
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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