Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord
International audience In the frame of the European Project on Ocean Acidification (EPOCA), the response of an Arctic pelagic community (<3 mm) to a gradient of seawater pCO(2) was investigated. For this purpose 9 large-scale in situ mesocosms were deployed in Kongsfjorden, Svalbard (78 degrees 5...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2013
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Online Access: | https://hal.science/hal-01258225 https://hal.science/hal-01258225/document https://hal.science/hal-01258225/file/bg-10-181-2013.pdf https://doi.org/10.5194/bg-10-181-2013 |
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HAL Sorbonne Université |
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ftsorbonneuniv |
language |
English |
topic |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A.-S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, Lucie Romac, Sarah Riebesell, U. Engel, A. Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
topic_facet |
[SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
description |
International audience In the frame of the European Project on Ocean Acidification (EPOCA), the response of an Arctic pelagic community (<3 mm) to a gradient of seawater pCO(2) was investigated. For this purpose 9 large-scale in situ mesocosms were deployed in Kongsfjorden, Svalbard (78 degrees 56.2' N, 11 degrees 53.6' E), in 2010. The present study investigates effects on the communities of particle-attached (PA; >3 mu m) and free-living (FL; <3 mu m > 0.2 mu m) bacteria by Automated Ribosomal Intergenic Spacer Analysis (ARISA) in 6 of the mesocosms, ranging from 185 to 1050 mu atm initial pCO(2), and the surrounding fjord. ARISA was able to resolve, on average, 27 bacterial band classes per sample and allowed for a detailed investigation of the explicit richness and diversity. Both, the PA and the FL bacterioplankton community exhibited a strong temporal development, which was driven mainly by temperature and phytoplankton development. In response to the breakdown of a picophytoplankton bloom, numbers of ARISA band classes in the PA community were reduced at low and medium CO2 (similar to 185-685 mu atm) by about 25 %, while they were more or less stable at high CO2 (similar to 820-1050 mu atm). We hypothesise that enhanced viral lysis and enhanced availability of organic substrates at high CO2 resulted in a more diverse PA bacterial community in the post-bloom phase. Despite lower cell numbers and extracellular enzyme activities in the post-bloom phase, bacterial protein production was enhanced in high CO2 mesocosms, suggesting a positive effect of community richness on this function and on carbon cycling by bacteria. |
author2 |
Biologische Anstalt Helgoland Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association Helmholtz Centre for Ocean Research Kiel (GEOMAR) Helmholtz-Gemeinschaft = Helmholtz Association Argonne National Laboratory Lemont (ANL) Plymouth Marine Laboratory (PML) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Evolution des Protistes et Ecosystèmes Pélagiques (EPEP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Institute for Atmosphere and Environment University of Frankfurt European Community 211384 EU EraNet BiodivErsA program BioMarKs Helmholtz Graduate School for Polar and Marine Research (POLMAR) |
format |
Article in Journal/Newspaper |
author |
Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A.-S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, Lucie Romac, Sarah Riebesell, U. Engel, A. |
author_facet |
Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A.-S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, Lucie Romac, Sarah Riebesell, U. Engel, A. |
author_sort |
Sperling, M. |
title |
Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_short |
Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_full |
Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_fullStr |
Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_full_unstemmed |
Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_sort |
effect of elevated co 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an arctic fjord |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-01258225 https://hal.science/hal-01258225/document https://hal.science/hal-01258225/file/bg-10-181-2013.pdf https://doi.org/10.5194/bg-10-181-2013 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-01258225 Biogeosciences, 2013, 10 (1), pp.181-191. ⟨10.5194/bg-10-181-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-10-181-2013 hal-01258225 https://hal.science/hal-01258225 https://hal.science/hal-01258225/document https://hal.science/hal-01258225/file/bg-10-181-2013.pdf doi:10.5194/bg-10-181-2013 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-10-181-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
1 |
container_start_page |
181 |
op_container_end_page |
191 |
_version_ |
1790596840521990144 |
spelling |
ftsorbonneuniv:oai:HAL:hal-01258225v1 2024-02-11T10:01:06+01:00 Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A.-S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, Lucie Romac, Sarah Riebesell, U. Engel, A. Biologische Anstalt Helgoland Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association Helmholtz Centre for Ocean Research Kiel (GEOMAR) Helmholtz-Gemeinschaft = Helmholtz Association Argonne National Laboratory Lemont (ANL) Plymouth Marine Laboratory (PML) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Evolution des Protistes et Ecosystèmes Pélagiques (EPEP) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Institute for Atmosphere and Environment University of Frankfurt European Community 211384 EU EraNet BiodivErsA program BioMarKs Helmholtz Graduate School for Polar and Marine Research (POLMAR) 2013 https://hal.science/hal-01258225 https://hal.science/hal-01258225/document https://hal.science/hal-01258225/file/bg-10-181-2013.pdf https://doi.org/10.5194/bg-10-181-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-10-181-2013 hal-01258225 https://hal.science/hal-01258225 https://hal.science/hal-01258225/document https://hal.science/hal-01258225/file/bg-10-181-2013.pdf doi:10.5194/bg-10-181-2013 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-01258225 Biogeosciences, 2013, 10 (1), pp.181-191. ⟨10.5194/bg-10-181-2013⟩ [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2013 ftsorbonneuniv https://doi.org/10.5194/bg-10-181-2013 2024-01-23T23:57:20Z International audience In the frame of the European Project on Ocean Acidification (EPOCA), the response of an Arctic pelagic community (<3 mm) to a gradient of seawater pCO(2) was investigated. For this purpose 9 large-scale in situ mesocosms were deployed in Kongsfjorden, Svalbard (78 degrees 56.2' N, 11 degrees 53.6' E), in 2010. The present study investigates effects on the communities of particle-attached (PA; >3 mu m) and free-living (FL; <3 mu m > 0.2 mu m) bacteria by Automated Ribosomal Intergenic Spacer Analysis (ARISA) in 6 of the mesocosms, ranging from 185 to 1050 mu atm initial pCO(2), and the surrounding fjord. ARISA was able to resolve, on average, 27 bacterial band classes per sample and allowed for a detailed investigation of the explicit richness and diversity. Both, the PA and the FL bacterioplankton community exhibited a strong temporal development, which was driven mainly by temperature and phytoplankton development. In response to the breakdown of a picophytoplankton bloom, numbers of ARISA band classes in the PA community were reduced at low and medium CO2 (similar to 185-685 mu atm) by about 25 %, while they were more or less stable at high CO2 (similar to 820-1050 mu atm). We hypothesise that enhanced viral lysis and enhanced availability of organic substrates at high CO2 resulted in a more diverse PA bacterial community in the post-bloom phase. Despite lower cell numbers and extracellular enzyme activities in the post-bloom phase, bacterial protein production was enhanced in high CO2 mesocosms, suggesting a positive effect of community richness on this function and on carbon cycling by bacteria. Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard HAL Sorbonne Université Arctic Svalbard Biogeosciences 10 1 181 191 |