Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom
International audience The North Atlantic bloom corresponds to a strong seasonal increase in phytoplankton that produces organic carbon through photosynthesis. It is still debated what physical and biological conditions trigger the bloom, because comprehensive time series of the vertical distributio...
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ftanrparis:oai:HAL:hal-01691682v1 2024-09-15T18:21:13+00:00 Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom Mignot, A. Ferrari, R. Claustre, Hervé Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) ANR-10-EQPX-0040,NAOS,Observations de l'océan global pour l'étude et la prévision de l'océan et du climat: préparation de la nouvelle décennie d'Argo(2010) 2018 https://hal.sorbonne-universite.fr/hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682/document https://hal.sorbonne-universite.fr/hal-01691682/file/s41467-017-02143-6.pdf https://doi.org/10.1038/s41467-017-02143-6 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02143-6 hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682/document https://hal.sorbonne-universite.fr/hal-01691682/file/s41467-017-02143-6.pdf doi:10.1038/s41467-017-02143-6 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.sorbonne-universite.fr/hal-01691682 Nature Communications, 2018, 9 (1), pp.190. ⟨10.1038/s41467-017-02143-6⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2018 ftanrparis https://doi.org/10.1038/s41467-017-02143-6 2024-07-12T11:28:37Z International audience The North Atlantic bloom corresponds to a strong seasonal increase in phytoplankton that produces organic carbon through photosynthesis. It is still debated what physical and biological conditions trigger the bloom, because comprehensive time series of the vertical distribution of phytoplankton biomass are lacking. Vertical profiles from nine floats that sampled the waters of the North Atlantic every few days for a couple of years reveal that phyto-plankton populations start growing in early winter at very weak rates. A proper bloom with rapidly accelerating population growth rates instead starts only in spring when atmospheric cooling subsides and the mixed layer rapidly shoals. While the weak accumulation of phy-toplankton in winter is crucial to maintaining a viable population, the spring bloom dominates the overall seasonal production of organic carbon. Article in Journal/Newspaper North Atlantic Portail HAL-ANR (Agence Nationale de la Recherche) Nature Communications 9 1 |
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Open Polar |
collection |
Portail HAL-ANR (Agence Nationale de la Recherche) |
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ftanrparis |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
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[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Mignot, A. Ferrari, R. Claustre, Hervé Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The North Atlantic bloom corresponds to a strong seasonal increase in phytoplankton that produces organic carbon through photosynthesis. It is still debated what physical and biological conditions trigger the bloom, because comprehensive time series of the vertical distribution of phytoplankton biomass are lacking. Vertical profiles from nine floats that sampled the waters of the North Atlantic every few days for a couple of years reveal that phyto-plankton populations start growing in early winter at very weak rates. A proper bloom with rapidly accelerating population growth rates instead starts only in spring when atmospheric cooling subsides and the mixed layer rapidly shoals. While the weak accumulation of phy-toplankton in winter is crucial to maintaining a viable population, the spring bloom dominates the overall seasonal production of organic carbon. |
author2 |
Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) ANR-10-EQPX-0040,NAOS,Observations de l'océan global pour l'étude et la prévision de l'océan et du climat: préparation de la nouvelle décennie d'Argo(2010) |
format |
Article in Journal/Newspaper |
author |
Mignot, A. Ferrari, R. Claustre, Hervé |
author_facet |
Mignot, A. Ferrari, R. Claustre, Hervé |
author_sort |
Mignot, A. |
title |
Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
title_short |
Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
title_full |
Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
title_fullStr |
Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
title_full_unstemmed |
Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom |
title_sort |
floats with bio-optical sensors reveal what processes trigger the north atlantic bloom |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.sorbonne-universite.fr/hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682/document https://hal.sorbonne-universite.fr/hal-01691682/file/s41467-017-02143-6.pdf https://doi.org/10.1038/s41467-017-02143-6 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 2041-1723 EISSN: 2041-1723 Nature Communications https://hal.sorbonne-universite.fr/hal-01691682 Nature Communications, 2018, 9 (1), pp.190. ⟨10.1038/s41467-017-02143-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-017-02143-6 hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682 https://hal.sorbonne-universite.fr/hal-01691682/document https://hal.sorbonne-universite.fr/hal-01691682/file/s41467-017-02143-6.pdf doi:10.1038/s41467-017-02143-6 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41467-017-02143-6 |
container_title |
Nature Communications |
container_volume |
9 |
container_issue |
1 |
_version_ |
1810459699051495424 |