Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean
The temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean was assessed on the basis of measurements of gross primary production (GPP), community respiration (CR) and net community production (NCP), as well as experimental assessments of the response of CR to tempera...
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Online Access: | https://archimer.ifremer.fr/doc/00419/53074/54034.pdf https://doi.org/10.5194/bg-11-4529-2014 https://archimer.ifremer.fr/doc/00419/53074/ |
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ftarchimer:oai:archimer.ifremer.fr:53074 2023-05-15T17:27:49+02:00 Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean Garcia-corral, L. S. Barber, E. Regaudie-de-gioux, Aurore Sal, S. Holding, J. M. Agusti, S. Navarro, N. Serret, P. Mozetic, P. Duarte, C. M. 2014 application/pdf https://archimer.ifremer.fr/doc/00419/53074/54034.pdf https://doi.org/10.5194/bg-11-4529-2014 https://archimer.ifremer.fr/doc/00419/53074/ eng eng Copernicus Gesellschaft Mbh https://archimer.ifremer.fr/doc/00419/53074/54034.pdf doi:10.5194/bg-11-4529-2014 https://archimer.ifremer.fr/doc/00419/53074/ Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use CC-BY Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2014 , Vol. 11 , N. 16 , P. 4529-4540 text Publication info:eu-repo/semantics/article 2014 ftarchimer https://doi.org/10.5194/bg-11-4529-2014 2021-09-23T20:30:24Z The temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean was assessed on the basis of measurements of gross primary production (GPP), community respiration (CR) and net community production (NCP), as well as experimental assessments of the response of CR to temperature manipulations. Metabolic rates were measured at 68 stations along three consecutive longitudinal transects completed during the Malaspina 2010 Expedition, in three different seasons. Temperature gradients were observed in depth and at basin and seasonal scale. The results showed seasonal variability in the metabolic rates, the highest rates being observed during the spring transect. The overall mean integrated GPP / CR ratio was 1.39 +/- 0.27 decreasing from winter to summer, and the NCP for the subtropical North Atlantic Ocean during the cruises exhibits net autotrophy (NCP > 0) in about two-thirds (66 %) of the total sampled communities. Also, we reported the activation energies describing the temperature dependence of planktonic community metabolism, which was generally higher for CR than for GPP in the subtropical North Atlantic Ocean, as the metabolic theory of ecology predicts. Furthermore, we made a comparison of activation energies describing the responses to in situ temperature in the field (Ea(CR) = 1.64 +/- 0.36 eV) and those derived experimentally by temperature manipulations (Ea(CR) = 1.45 +/- 0.6 eV), which showed great consistency. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Biogeosciences 11 16 4529 4540 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
The temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean was assessed on the basis of measurements of gross primary production (GPP), community respiration (CR) and net community production (NCP), as well as experimental assessments of the response of CR to temperature manipulations. Metabolic rates were measured at 68 stations along three consecutive longitudinal transects completed during the Malaspina 2010 Expedition, in three different seasons. Temperature gradients were observed in depth and at basin and seasonal scale. The results showed seasonal variability in the metabolic rates, the highest rates being observed during the spring transect. The overall mean integrated GPP / CR ratio was 1.39 +/- 0.27 decreasing from winter to summer, and the NCP for the subtropical North Atlantic Ocean during the cruises exhibits net autotrophy (NCP > 0) in about two-thirds (66 %) of the total sampled communities. Also, we reported the activation energies describing the temperature dependence of planktonic community metabolism, which was generally higher for CR than for GPP in the subtropical North Atlantic Ocean, as the metabolic theory of ecology predicts. Furthermore, we made a comparison of activation energies describing the responses to in situ temperature in the field (Ea(CR) = 1.64 +/- 0.36 eV) and those derived experimentally by temperature manipulations (Ea(CR) = 1.45 +/- 0.6 eV), which showed great consistency. |
format |
Article in Journal/Newspaper |
author |
Garcia-corral, L. S. Barber, E. Regaudie-de-gioux, Aurore Sal, S. Holding, J. M. Agusti, S. Navarro, N. Serret, P. Mozetic, P. Duarte, C. M. |
spellingShingle |
Garcia-corral, L. S. Barber, E. Regaudie-de-gioux, Aurore Sal, S. Holding, J. M. Agusti, S. Navarro, N. Serret, P. Mozetic, P. Duarte, C. M. Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
author_facet |
Garcia-corral, L. S. Barber, E. Regaudie-de-gioux, Aurore Sal, S. Holding, J. M. Agusti, S. Navarro, N. Serret, P. Mozetic, P. Duarte, C. M. |
author_sort |
Garcia-corral, L. S. |
title |
Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
title_short |
Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
title_full |
Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
title_fullStr |
Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
title_full_unstemmed |
Temperature dependence of planktonic metabolism in the subtropical North Atlantic Ocean |
title_sort |
temperature dependence of planktonic metabolism in the subtropical north atlantic ocean |
publisher |
Copernicus Gesellschaft Mbh |
publishDate |
2014 |
url |
https://archimer.ifremer.fr/doc/00419/53074/54034.pdf https://doi.org/10.5194/bg-11-4529-2014 https://archimer.ifremer.fr/doc/00419/53074/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Biogeosciences (1726-4170) (Copernicus Gesellschaft Mbh), 2014 , Vol. 11 , N. 16 , P. 4529-4540 |
op_relation |
https://archimer.ifremer.fr/doc/00419/53074/54034.pdf doi:10.5194/bg-11-4529-2014 https://archimer.ifremer.fr/doc/00419/53074/ |
op_rights |
Author(s) 2014. This work is distributed under the Creative Commons Attribution 3.0 License. info:eu-repo/semantics/openAccess restricted use |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-11-4529-2014 |
container_title |
Biogeosciences |
container_volume |
11 |
container_issue |
16 |
container_start_page |
4529 |
op_container_end_page |
4540 |
_version_ |
1766120117440086016 |