Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord
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...
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Online Access: | http://plymsea.ac.uk/id/eprint/5575/ http://plymsea.ac.uk/id/eprint/5575/1/Sperling%20et%20al%20Biogeosciences%20et%20al%202013.pdf https://doi.org/10.5194/bg-10-181-2013 |
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ftplymouthml:oai:plymsea.ac.uk:5575 2023-05-15T14:27:35+02:00 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, JA Nissimov, JI Bittner, L Romac, S Riebesell, U Engel, A 2013-01-11 text http://plymsea.ac.uk/id/eprint/5575/ http://plymsea.ac.uk/id/eprint/5575/1/Sperling%20et%20al%20Biogeosciences%20et%20al%202013.pdf https://doi.org/10.5194/bg-10-181-2013 en eng http://plymsea.ac.uk/id/eprint/5575/1/Sperling%20et%20al%20Biogeosciences%20et%20al%202013.pdf Sperling, M; Piontek, J; Gerdts, G; Wichels, A; Schunck, H; Roy, A-S; La Roche, J; Gilbert, JA; Nissimov, JI; Bittner, L; Romac, S; Riebesell, U; Engel, A. 2013 Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord. Biogeosciences, 10 (1). 181-191. https://doi.org/10.5194/bg-10-181-2013 <https://doi.org/10.5194/bg-10-181-2013> cc_by info:eu-repo/semantics/openAccess CC-BY Marine Sciences Publication - Article PeerReviewed info:eu-repo/semantics/article 2013 ftplymouthml https://doi.org/10.5194/bg-10-181-2013 2022-09-13T05:48:20Z 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 Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) Arctic Svalbard Biogeosciences 10 1 181 191 |
institution |
Open Polar |
collection |
Plymouth Marine Science Electronic Archive (PlyMSEA - Plymouth Marine Laboratory, PML) |
op_collection_id |
ftplymouthml |
language |
English |
topic |
Marine Sciences |
spellingShingle |
Marine Sciences Sperling, M Piontek, J Gerdts, G Wichels, A Schunck, H Roy, A-S La Roche, J Gilbert, JA Nissimov, JI Bittner, L Romac, S 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 |
Marine Sciences |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Sperling, M Piontek, J Gerdts, G Wichels, A Schunck, H Roy, A-S La Roche, J Gilbert, JA Nissimov, JI Bittner, L Romac, S Riebesell, U Engel, A |
author_facet |
Sperling, M Piontek, J Gerdts, G Wichels, A Schunck, H Roy, A-S La Roche, J Gilbert, JA Nissimov, JI Bittner, L Romac, S 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 |
publishDate |
2013 |
url |
http://plymsea.ac.uk/id/eprint/5575/ http://plymsea.ac.uk/id/eprint/5575/1/Sperling%20et%20al%20Biogeosciences%20et%20al%202013.pdf https://doi.org/10.5194/bg-10-181-2013 |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
genre_facet |
Arctic Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Svalbard |
op_relation |
http://plymsea.ac.uk/id/eprint/5575/1/Sperling%20et%20al%20Biogeosciences%20et%20al%202013.pdf Sperling, M; Piontek, J; Gerdts, G; Wichels, A; Schunck, H; Roy, A-S; La Roche, J; Gilbert, JA; Nissimov, JI; Bittner, L; Romac, S; Riebesell, U; Engel, A. 2013 Effect of elevated CO 2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord. Biogeosciences, 10 (1). 181-191. https://doi.org/10.5194/bg-10-181-2013 <https://doi.org/10.5194/bg-10-181-2013> |
op_rights |
cc_by info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
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 |
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1766301382942392320 |