Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer
International audience Phytoplankton cells in the size range ∼1-50 µm were analysed in surface waters using an automated flow cytometer, the Cytosub (http://www.cytobuoy.com), from the Azores to the French Brittany during spring 2007. The Cytosub records the pulse shape of the optical signals genera...
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ftunivtoulon:oai:HAL:hal-03112604v1 2024-09-15T18:24:40+00:00 Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer Thyssen, Melilotus Garcia, N. Denis, M. Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) 2009 https://hal.science/hal-03112604 https://hal.science/hal-03112604/document https://hal.science/hal-03112604/file/bg-6-569-2009.pdf https://doi.org/10.5194/bg-6-569-2009 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-6-569-2009 hal-03112604 https://hal.science/hal-03112604 https://hal.science/hal-03112604/document https://hal.science/hal-03112604/file/bg-6-569-2009.pdf doi:10.5194/bg-6-569-2009 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-03112604 Biogeosciences, 2009, 6 (4), pp.569-583. ⟨10.5194/bg-6-569-2009⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2009 ftunivtoulon https://doi.org/10.5194/bg-6-569-2009 2024-07-15T23:39:38Z International audience Phytoplankton cells in the size range ∼1-50 µm were analysed in surface waters using an automated flow cytometer, the Cytosub (http://www.cytobuoy.com), from the Azores to the French Brittany during spring 2007. The Cytosub records the pulse shape of the optical signals generated by phytoplankton cells when intercepted by the laser beam. A total of 6 distinct optical groups were resolved during the whole transect, and the high frequency sampling (15 min) provided evidence for the cellular cycle (based on cyclic changes in cell size and fluorescence) and distribution changes linked to the different water characteristics crossed in the North East Atlantic provinces. Nutrient concentrations and mixed layer depth varied from west to east, with a decrease in the mixed layer depth and high nutrient concentrations in the middle of the transect as well as near the French coast. Data provided a link between the sub meso scale processes and phytoplankton patchiness, some abundance variations due to the cellular cycle can be pointed out. The high frequency spatial sampling encompasses temporal variations of the phytoplankton abundance, offering a better insight into phytoplankton distribution. Article in Journal/Newspaper North East Atlantic Université de Toulon: HAL Biogeosciences 6 4 569 583 |
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Université de Toulon: HAL |
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ftunivtoulon |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Thyssen, Melilotus Garcia, N. Denis, M. Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Phytoplankton cells in the size range ∼1-50 µm were analysed in surface waters using an automated flow cytometer, the Cytosub (http://www.cytobuoy.com), from the Azores to the French Brittany during spring 2007. The Cytosub records the pulse shape of the optical signals generated by phytoplankton cells when intercepted by the laser beam. A total of 6 distinct optical groups were resolved during the whole transect, and the high frequency sampling (15 min) provided evidence for the cellular cycle (based on cyclic changes in cell size and fluorescence) and distribution changes linked to the different water characteristics crossed in the North East Atlantic provinces. Nutrient concentrations and mixed layer depth varied from west to east, with a decrease in the mixed layer depth and high nutrient concentrations in the middle of the transect as well as near the French coast. Data provided a link between the sub meso scale processes and phytoplankton patchiness, some abundance variations due to the cellular cycle can be pointed out. The high frequency spatial sampling encompasses temporal variations of the phytoplankton abundance, offering a better insight into phytoplankton distribution. |
author2 |
Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Thyssen, Melilotus Garcia, N. Denis, M. |
author_facet |
Thyssen, Melilotus Garcia, N. Denis, M. |
author_sort |
Thyssen, Melilotus |
title |
Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
title_short |
Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
title_full |
Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
title_fullStr |
Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
title_full_unstemmed |
Sub meso scale phytoplankton distribution in the North East Atlantic surface waters determined with an automated flow cytometer |
title_sort |
sub meso scale phytoplankton distribution in the north east atlantic surface waters determined with an automated flow cytometer |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-03112604 https://hal.science/hal-03112604/document https://hal.science/hal-03112604/file/bg-6-569-2009.pdf https://doi.org/10.5194/bg-6-569-2009 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-03112604 Biogeosciences, 2009, 6 (4), pp.569-583. ⟨10.5194/bg-6-569-2009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-6-569-2009 hal-03112604 https://hal.science/hal-03112604 https://hal.science/hal-03112604/document https://hal.science/hal-03112604/file/bg-6-569-2009.pdf doi:10.5194/bg-6-569-2009 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-6-569-2009 |
container_title |
Biogeosciences |
container_volume |
6 |
container_issue |
4 |
container_start_page |
569 |
op_container_end_page |
583 |
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1810465076274003968 |