Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001
Heterotrophic bacteria abundances, total chlorophyll a (Tchla), and nitrate concentrations were determined during the spring cruise (23 March-13 April 2001) of the Programme Océan Multidisciplinaire Méso Echelle (POMME) in the northeastern Atlantic between 39.0°-44.5°N and 16.6°-20.6°W. Sampling cov...
Published in: | Journal of Geophysical Research |
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Main Authors: | , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2005
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Subjects: | |
Online Access: | https://hal.science/hal-00092675 https://hal.science/hal-00092675/document https://hal.science/hal-00092675/file/2004JC002670.pdf https://doi.org/10.1029/2004JC002670 |
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ftsorbonneuniv:oai:HAL:hal-00092675v1 |
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openpolar |
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Open Polar |
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HAL Sorbonne Université |
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ftsorbonneuniv |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Thyssen, Melilotus Lefèvre, Dominique Caniaux, Guy Ras, Josephine Fernandez, Camila I. Denis, Michel Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
Heterotrophic bacteria abundances, total chlorophyll a (Tchla), and nitrate concentrations were determined during the spring cruise (23 March-13 April 2001) of the Programme Océan Multidisciplinaire Méso Echelle (POMME) in the northeastern Atlantic between 39.0°-44.5°N and 16.6°-20.6°W. Sampling covered a grid of 81 stations regularly spaced. Three bacteria subpopulations (HNA1, HNA2, and LNA) were resolved by flow cytometry on the basis of their nucleic acid content, after staining with SYBR Green II (molecular probes), and by their scatter properties. The bacterial distribution was investigated down to 600 m depth. HNA2 were essentially observed in the upper 200 m and were not present at all stations. HNA1 dominated in the surface layer and were positively linked to Tchla. This relationship exhibited some heterogeneity due to the latitudinal evolution of the phytoplankton bloom and the seasonal thermocline formation already occurring in the south. In contrast, LNA dominated the bacterial subgroups below 100 m depth, and their distribution bore the fingerprint of the geostrophic current field and the mesoscale features identified in the study area, i.e., cyclonic and anticyclonic eddies and frontal structures. |
author2 |
Laboratoire de MicrobiologiE de Géochimie et d'Ecologie Marines (LMGEM) Université de la Méditerranée - Aix-Marseille 2-Centre National de la Recherche Scientifique (CNRS) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie et de biogéochimie (LOB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Thyssen, Melilotus Lefèvre, Dominique Caniaux, Guy Ras, Josephine Fernandez, Camila I. Denis, Michel |
author_facet |
Thyssen, Melilotus Lefèvre, Dominique Caniaux, Guy Ras, Josephine Fernandez, Camila I. Denis, Michel |
author_sort |
Thyssen, Melilotus |
title |
Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
title_short |
Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
title_full |
Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
title_fullStr |
Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
title_full_unstemmed |
Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 |
title_sort |
spatial distribution of heterotrophic bacteria in the northeast atlantic (pomme study area) during spring 2001 |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00092675 https://hal.science/hal-00092675/document https://hal.science/hal-00092675/file/2004JC002670.pdf https://doi.org/10.1029/2004JC002670 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-00092675 Journal of Geophysical Research, 2005, 110, pp.C07S16-16. ⟨10.1029/2004JC002670⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2004JC002670 hal-00092675 https://hal.science/hal-00092675 https://hal.science/hal-00092675/document https://hal.science/hal-00092675/file/2004JC002670.pdf doi:10.1029/2004JC002670 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2004JC002670 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
C7 |
_version_ |
1810465912275337216 |
spelling |
ftsorbonneuniv:oai:HAL:hal-00092675v1 2024-09-15T18:25:24+00:00 Spatial distribution of heterotrophic bacteria in the northeast Atlantic (POMME study area) during spring 2001 Thyssen, Melilotus Lefèvre, Dominique Caniaux, Guy Ras, Josephine Fernandez, Camila I. Denis, Michel Laboratoire de MicrobiologiE de Géochimie et d'Ecologie Marines (LMGEM) Université de la Méditerranée - Aix-Marseille 2-Centre National de la Recherche Scientifique (CNRS) Centre national de recherches météorologiques (CNRM) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie et de biogéochimie (LOB) Université de la Méditerranée - Aix-Marseille 2-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) 2005 https://hal.science/hal-00092675 https://hal.science/hal-00092675/document https://hal.science/hal-00092675/file/2004JC002670.pdf https://doi.org/10.1029/2004JC002670 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2004JC002670 hal-00092675 https://hal.science/hal-00092675 https://hal.science/hal-00092675/document https://hal.science/hal-00092675/file/2004JC002670.pdf doi:10.1029/2004JC002670 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-00092675 Journal of Geophysical Research, 2005, 110, pp.C07S16-16. ⟨10.1029/2004JC002670⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2005 ftsorbonneuniv https://doi.org/10.1029/2004JC002670 2024-07-25T23:47:55Z Heterotrophic bacteria abundances, total chlorophyll a (Tchla), and nitrate concentrations were determined during the spring cruise (23 March-13 April 2001) of the Programme Océan Multidisciplinaire Méso Echelle (POMME) in the northeastern Atlantic between 39.0°-44.5°N and 16.6°-20.6°W. Sampling covered a grid of 81 stations regularly spaced. Three bacteria subpopulations (HNA1, HNA2, and LNA) were resolved by flow cytometry on the basis of their nucleic acid content, after staining with SYBR Green II (molecular probes), and by their scatter properties. The bacterial distribution was investigated down to 600 m depth. HNA2 were essentially observed in the upper 200 m and were not present at all stations. HNA1 dominated in the surface layer and were positively linked to Tchla. This relationship exhibited some heterogeneity due to the latitudinal evolution of the phytoplankton bloom and the seasonal thermocline formation already occurring in the south. In contrast, LNA dominated the bacterial subgroups below 100 m depth, and their distribution bore the fingerprint of the geostrophic current field and the mesoscale features identified in the study area, i.e., cyclonic and anticyclonic eddies and frontal structures. Article in Journal/Newspaper Northeast Atlantic HAL Sorbonne Université Journal of Geophysical Research 110 C7 |