Effect of elevated CO2 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° 56.2' N, 11° 53.6' E),...
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Main Authors: | , , , , , , , , , , , , |
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Online Access: | https://pure.uhi.ac.uk/en/publications/bb788853-e863-4fc5-b27b-268c8d65d9b3 https://doi.org/10.5194/bg-10-181-2013 http://www.scopus.com/inward/record.url?scp=84872229165&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84872229165&partnerID=8YFLogxK |
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ftuhipublicatio:oai:pure.atira.dk:publications/bb788853-e863-4fc5-b27b-268c8d65d9b3 2024-01-28T10:02:25+01:00 Effect of elevated CO2 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, L. Romac, S. Riebesell, U. Engel, A. 2013-01-11 https://pure.uhi.ac.uk/en/publications/bb788853-e863-4fc5-b27b-268c8d65d9b3 https://doi.org/10.5194/bg-10-181-2013 http://www.scopus.com/inward/record.url?scp=84872229165&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84872229165&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Sperling , M , Piontek , J , Gerdts , G , Wichels , A , Schunck , H , Roy , A S , La Roche , J , Gilbert , J , Nissimov , J I , Bittner , L , Romac , S , Riebesell , U & Engel , A 2013 , ' Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord ' , Biogeosciences , vol. 10 , no. 1 , pp. 181-191 . https://doi.org/10.5194/bg-10-181-2013 article 2013 ftuhipublicatio https://doi.org/10.5194/bg-10-181-2013 2024-01-04T23:21:14Z 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° 56.2' N, 11° 53.6' E), in 2010. The present study investigates effects on the communities of particle-attached (PA; >3 μm) and free-living (FL; < 3 μm > 0.2 μm) bacteria by Automated Ribosomal Intergenic Spacer Analysis (ARISA) in 6 of the mesocosms, ranging from 185 to 1050 μatm 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 CO 2 (̃ 185-685 μatm) by about 25%, while they were more or less stable at high CO 2 (̃ 820-1050 μatm). We hypothesise that enhanced viral lysis and enhanced availability of organic substrates at high CO 2 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 CO 2 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 University of the Highlands and Islands: Research Database of UHI Arctic Svalbard Biogeosciences 10 1 181 191 |
institution |
Open Polar |
collection |
University of the Highlands and Islands: Research Database of UHI |
op_collection_id |
ftuhipublicatio |
language |
English |
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° 56.2' N, 11° 53.6' E), in 2010. The present study investigates effects on the communities of particle-attached (PA; >3 μm) and free-living (FL; < 3 μm > 0.2 μm) bacteria by Automated Ribosomal Intergenic Spacer Analysis (ARISA) in 6 of the mesocosms, ranging from 185 to 1050 μatm 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 CO 2 (̃ 185-685 μatm) by about 25%, while they were more or less stable at high CO 2 (̃ 820-1050 μatm). We hypothesise that enhanced viral lysis and enhanced availability of organic substrates at high CO 2 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 CO 2 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, J. Nissimov, J. I. Bittner, L. Romac, S. Riebesell, U. Engel, A. |
spellingShingle |
Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A. S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, L. Romac, S. Riebesell, U. Engel, A. Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
author_facet |
Sperling, M. Piontek, J. Gerdts, G. Wichels, A. Schunck, H. Roy, A. S. La Roche, J. Gilbert, J. Nissimov, J. I. Bittner, L. Romac, S. Riebesell, U. Engel, A. |
author_sort |
Sperling, M. |
title |
Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_short |
Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_full |
Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_fullStr |
Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_full_unstemmed |
Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord |
title_sort |
effect of elevated co2 on the dynamics of particle-attached and free-living bacterioplankton communities in an arctic fjord |
publishDate |
2013 |
url |
https://pure.uhi.ac.uk/en/publications/bb788853-e863-4fc5-b27b-268c8d65d9b3 https://doi.org/10.5194/bg-10-181-2013 http://www.scopus.com/inward/record.url?scp=84872229165&partnerID=8YFLogxK http://www.scopus.com/inward/citedby.url?scp=84872229165&partnerID=8YFLogxK |
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_source |
Sperling , M , Piontek , J , Gerdts , G , Wichels , A , Schunck , H , Roy , A S , La Roche , J , Gilbert , J , Nissimov , J I , Bittner , L , Romac , S , Riebesell , U & Engel , A 2013 , ' Effect of elevated CO2 on the dynamics of particle-attached and free-living bacterioplankton communities in an Arctic fjord ' , Biogeosciences , vol. 10 , no. 1 , pp. 181-191 . https://doi.org/10.5194/bg-10-181-2013 |
op_rights |
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 |
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1789327799027236864 |