Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean
International audience Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47N to 33N was sam...
Published in: | Journal of Geophysical Research |
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ftunivnantes:oai:HAL:hal-03278093v1 2023-11-12T04:22:02+01:00 Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna Thierstein, Hans-R. Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Helmholtz Centre for Ocean Research Kiel (GEOMAR) 2011 https://univ-angers.hal.science/hal-03278093 https://univ-angers.hal.science/hal-03278093/document https://univ-angers.hal.science/hal-03278093/file/Schiebel.pdf https://doi.org/10.1029/2010JC006841 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JC006841 hal-03278093 https://univ-angers.hal.science/hal-03278093 https://univ-angers.hal.science/hal-03278093/document https://univ-angers.hal.science/hal-03278093/file/Schiebel.pdf doi:10.1029/2010JC006841 OKINA: ua3898 http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://univ-angers.hal.science/hal-03278093 Journal of Geophysical Research. Oceans, 2011, 116 (8), Non spécifié. ⟨10.1029/2010JC006841⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2011 ftunivnantes https://doi.org/10.1029/2010JC006841 2023-10-24T22:41:02Z International audience Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47N to 33N was sampled along 20W. Water samples from defined depths down to 200 m were analyzed for coccolithophores from 0.45 m polycarbonate filters by scanning electron microscopy. At 47N coccolithophores flourished when euphotic conditions allowed new production at deep mixing, low temperatures, and high nutrient concentrations. Emiliania huxleyi flourished at high turbulence during an early stage of the phytoplankton succession and contributed half of the total coccolithophore assemblage, with up to 150 × 103 cells L-1 and up to 12 × 109 cells m-2 when integrated over the upper 200 m of the water column. Maximum chlorophyll concentrations occurred just north of the Azores Front, at 37N-39N, at comparatively low numbers of coccolithophores. To the south, at 35N-33N, coccolithophores were abundant within calm and stratified Subtropical Mode Waters, and E. huxleyi was the dominant species again. Although the cell densities of coccolithophores observed here remained below those typical of plankton blooms visible from satellite images, the depth-integrated total mass makes them significant producers of calcite and contributors to the total carbon sedimentation at a much wider range of ecological conditions during late winter and early spring than hitherto assumed Article in Journal/Newspaper North Atlantic Université de Nantes: HAL-UNIV-NANTES Journal of Geophysical Research 116 C8 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna Thierstein, Hans-R. Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience Production and dispersion of coccolithophores are assessed within their ecologic and hydrographic context across enhanced spring chlorophyll production in the surface eastern North Atlantic. Within a 4 day period from 12 to 16 March 2004, a N-S transect from 47N to 33N was sampled along 20W. Water samples from defined depths down to 200 m were analyzed for coccolithophores from 0.45 m polycarbonate filters by scanning electron microscopy. At 47N coccolithophores flourished when euphotic conditions allowed new production at deep mixing, low temperatures, and high nutrient concentrations. Emiliania huxleyi flourished at high turbulence during an early stage of the phytoplankton succession and contributed half of the total coccolithophore assemblage, with up to 150 × 103 cells L-1 and up to 12 × 109 cells m-2 when integrated over the upper 200 m of the water column. Maximum chlorophyll concentrations occurred just north of the Azores Front, at 37N-39N, at comparatively low numbers of coccolithophores. To the south, at 35N-33N, coccolithophores were abundant within calm and stratified Subtropical Mode Waters, and E. huxleyi was the dominant species again. Although the cell densities of coccolithophores observed here remained below those typical of plankton blooms visible from satellite images, the depth-integrated total mass makes them significant producers of calcite and contributors to the total carbon sedimentation at a much wider range of ecological conditions during late winter and early spring than hitherto assumed |
author2 |
Laboratoire de Planétologie et Géodynamique - Angers (LPG-ANGERS) Laboratoire de Planétologie et Géodynamique UMR 6112 (LPG) Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Helmholtz Centre for Ocean Research Kiel (GEOMAR) |
format |
Article in Journal/Newspaper |
author |
Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna Thierstein, Hans-R. |
author_facet |
Schiebel, Ralf Brupbacher, Ursula Schmidtko, Sunke Nausch, Günther Waniek, Joanna Thierstein, Hans-R. |
author_sort |
Schiebel, Ralf |
title |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_short |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_full |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_fullStr |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_full_unstemmed |
Spring coccolithophore production and dispersion in the temperate eastern North Atlantic Ocean |
title_sort |
spring coccolithophore production and dispersion in the temperate eastern north atlantic ocean |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://univ-angers.hal.science/hal-03278093 https://univ-angers.hal.science/hal-03278093/document https://univ-angers.hal.science/hal-03278093/file/Schiebel.pdf https://doi.org/10.1029/2010JC006841 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://univ-angers.hal.science/hal-03278093 Journal of Geophysical Research. Oceans, 2011, 116 (8), Non spécifié. ⟨10.1029/2010JC006841⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2010JC006841 hal-03278093 https://univ-angers.hal.science/hal-03278093 https://univ-angers.hal.science/hal-03278093/document https://univ-angers.hal.science/hal-03278093/file/Schiebel.pdf doi:10.1029/2010JC006841 OKINA: ua3898 |
op_rights |
http://hal.archives-ouvertes.fr/licences/copyright/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2010JC006841 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
C8 |
_version_ |
1782337216945586176 |