Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic
Diel vertical migration (DVM) of zooplankton has been recognized to influence the biological pump by releasing carbon and nutrients at depth. However, uncertainties regarding the magnitude, spatial occurrence and variability of this “active transport”, as well as its impact on the carbon export, rem...
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American Geophysical Union (AGU)
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ftarchimer:oai:archimer.ifremer.fr:60428 2023-05-15T17:27:31+02:00 Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic Gorgues, Thomas Aumont, Olivier Memery, Laurent 2019-05 application/pdf https://archimer.ifremer.fr/doc/00493/60428/63868.pdf https://archimer.ifremer.fr/doc/00493/60428/63869.pdf https://doi.org/10.1029/2018GL081748 https://archimer.ifremer.fr/doc/00493/60428/ eng eng American Geophysical Union (AGU) info:eu-repo/grantAgreement/EC/FP7/264933/EU//EURO-BASIN https://archimer.ifremer.fr/doc/00493/60428/63868.pdf https://archimer.ifremer.fr/doc/00493/60428/63869.pdf doi:10.1029/2018GL081748 https://archimer.ifremer.fr/doc/00493/60428/ info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (American Geophysical Union (AGU)), 2019-05 , Vol. 46 , N. 10 , P. 5387-5395 text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1029/2018GL081748 2021-09-23T20:32:41Z Diel vertical migration (DVM) of zooplankton has been recognized to influence the biological pump by releasing carbon and nutrients at depth. However, uncertainties regarding the magnitude, spatial occurrence and variability of this “active transport”, as well as its impact on the carbon export, remain. To tackle these questions, a cost‐effective parameterization of the DVM is included into a regional biogeochemical model simulating the North Atlantic. In addition to a reference simulation in which no DVM is simulated, two relative biomasses of migrating zooplankton (30% and 60%) have been tested. It leads to an active to passive export ratio in agreement with published estimations and to an increase in the carbon export efficiency at 1000m between 20 and 40%. However, this effect is partially canceled out by a simulated primary production decrease. DVM differently impacts contrasted North Atlantic regions with the largest effect on export efficiency found in the subtropical area. Key Points Model evaluation of the zooplankton diurnal vertical migration (DVM) impacts in the North Atlantic. DVM increases the effectiveness of the carbon export. DVM, in model experiments, decrease primary production, which almost cancels out the above mentioned more efficient export. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Geophysical Research Letters 46 10 5387 5395 |
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 |
Diel vertical migration (DVM) of zooplankton has been recognized to influence the biological pump by releasing carbon and nutrients at depth. However, uncertainties regarding the magnitude, spatial occurrence and variability of this “active transport”, as well as its impact on the carbon export, remain. To tackle these questions, a cost‐effective parameterization of the DVM is included into a regional biogeochemical model simulating the North Atlantic. In addition to a reference simulation in which no DVM is simulated, two relative biomasses of migrating zooplankton (30% and 60%) have been tested. It leads to an active to passive export ratio in agreement with published estimations and to an increase in the carbon export efficiency at 1000m between 20 and 40%. However, this effect is partially canceled out by a simulated primary production decrease. DVM differently impacts contrasted North Atlantic regions with the largest effect on export efficiency found in the subtropical area. Key Points Model evaluation of the zooplankton diurnal vertical migration (DVM) impacts in the North Atlantic. DVM increases the effectiveness of the carbon export. DVM, in model experiments, decrease primary production, which almost cancels out the above mentioned more efficient export. |
format |
Article in Journal/Newspaper |
author |
Gorgues, Thomas Aumont, Olivier Memery, Laurent |
spellingShingle |
Gorgues, Thomas Aumont, Olivier Memery, Laurent Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
author_facet |
Gorgues, Thomas Aumont, Olivier Memery, Laurent |
author_sort |
Gorgues, Thomas |
title |
Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
title_short |
Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
title_full |
Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
title_fullStr |
Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
title_full_unstemmed |
Simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the North Atlantic |
title_sort |
simulated changes in the particulate carbon export efficiency due to diel vertical migration of zooplankton in the north atlantic |
publisher |
American Geophysical Union (AGU) |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00493/60428/63868.pdf https://archimer.ifremer.fr/doc/00493/60428/63869.pdf https://doi.org/10.1029/2018GL081748 https://archimer.ifremer.fr/doc/00493/60428/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters (0094-8276) (American Geophysical Union (AGU)), 2019-05 , Vol. 46 , N. 10 , P. 5387-5395 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/264933/EU//EURO-BASIN https://archimer.ifremer.fr/doc/00493/60428/63868.pdf https://archimer.ifremer.fr/doc/00493/60428/63869.pdf doi:10.1029/2018GL081748 https://archimer.ifremer.fr/doc/00493/60428/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2018GL081748 |
container_title |
Geophysical Research Letters |
container_volume |
46 |
container_issue |
10 |
container_start_page |
5387 |
op_container_end_page |
5395 |
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1766119648118439936 |