Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea
Increasing atmospheric carbon dioxide (CO2) is changing seawater chemistry towards reduced pH, which affects various properties of marine organisms. Coastal and brackish water communities are expected to be less affected by ocean acidification (OA) as these communities are typically adapted to high...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/174842 2024-01-07T09:45:42+01:00 Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea Bermúdez, Rafael Winder, Monika Stuhr, Annegret Almén, Anna-Karin Engström-Öst, Jonna Riebesell, Ulf Tvärminne Zoological Station 2017-02-07T14:58:01Z 11 application/pdf http://hdl.handle.net/10138/174842 eng eng COPERNICUS GESELLSCHAFT MBH 10.5194/bg-13-6625-2016 Bermúdez , R , Winder , M , Stuhr , A , Almén , A-K , Engström-Öst , J & Riebesell , U 2016 , ' Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea ' , Biogeosciences , vol. 13 , no. 24 , pp. 6625-6635 . https://doi.org/10.5194/bg-13-6625-2016 Bibtex: urn:deef3c5e9ded4b73aeec6e119732dc55 85006467528 6ce1d74b-5316-4e41-a11e-155d49bbdb83 http://hdl.handle.net/10138/174842 000391624100002 cc_by openAccess info:eu-repo/semantics/openAccess 1183 Plant biology microbiology virology 1172 Environmental sciences MARINE-PHYTOPLANKTON FOOD QUALITY CO2 CONCENTRATION ELEVATED CO2 SEAWATER GROWTH EVOLUTION DYNAMICS SYSTEM CARBON Article publishedVersion 2017 ftunivhelsihelda 2023-12-14T00:01:48Z Increasing atmospheric carbon dioxide (CO2) is changing seawater chemistry towards reduced pH, which affects various properties of marine organisms. Coastal and brackish water communities are expected to be less affected by ocean acidification (OA) as these communities are typically adapted to high fluctuations in CO2 and pH. Here we investigate the response of a coastal brackish water plankton community to increasing CO2 levels as projected for the coming decades and the end of this century in terms of community and biochemical fatty acid (FA) composition. A Baltic Sea plankton community was enclosed in a set of offshore mesocosms and subjected to a CO2 gradient ranging from natural concentrations (similar to 347 mu atm fCO(2)) up to values projected for the year 2100 (similar to 1333 mu atm fCO(2)). We show that the phytoplankton community composition was resilient to CO2 and did not diverge between the treatments. Seston FA composition was influenced by community composition, which in turn was driven by silicate and phosphate limitation in the mesocosms and showed no difference between the CO2 treatments. These results suggest that CO2 effects are dampened in coastal communities that already experience high natural fluctuations in pCO(2). Although this coastal plankton community was tolerant of high pCO(2) levels, hypoxia and CO2 uptake by the sea can aggravate acidification and may lead to pH changes outside the currently experienced range for coastal organisms. Peer reviewed Article in Journal/Newspaper Ocean acidification HELDA – University of Helsinki Open Repository Biogeosciences 13 24 6625 6635 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1183 Plant biology microbiology virology 1172 Environmental sciences MARINE-PHYTOPLANKTON FOOD QUALITY CO2 CONCENTRATION ELEVATED CO2 SEAWATER GROWTH EVOLUTION DYNAMICS SYSTEM CARBON |
spellingShingle |
1183 Plant biology microbiology virology 1172 Environmental sciences MARINE-PHYTOPLANKTON FOOD QUALITY CO2 CONCENTRATION ELEVATED CO2 SEAWATER GROWTH EVOLUTION DYNAMICS SYSTEM CARBON Bermúdez, Rafael Winder, Monika Stuhr, Annegret Almén, Anna-Karin Engström-Öst, Jonna Riebesell, Ulf Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
topic_facet |
1183 Plant biology microbiology virology 1172 Environmental sciences MARINE-PHYTOPLANKTON FOOD QUALITY CO2 CONCENTRATION ELEVATED CO2 SEAWATER GROWTH EVOLUTION DYNAMICS SYSTEM CARBON |
description |
Increasing atmospheric carbon dioxide (CO2) is changing seawater chemistry towards reduced pH, which affects various properties of marine organisms. Coastal and brackish water communities are expected to be less affected by ocean acidification (OA) as these communities are typically adapted to high fluctuations in CO2 and pH. Here we investigate the response of a coastal brackish water plankton community to increasing CO2 levels as projected for the coming decades and the end of this century in terms of community and biochemical fatty acid (FA) composition. A Baltic Sea plankton community was enclosed in a set of offshore mesocosms and subjected to a CO2 gradient ranging from natural concentrations (similar to 347 mu atm fCO(2)) up to values projected for the year 2100 (similar to 1333 mu atm fCO(2)). We show that the phytoplankton community composition was resilient to CO2 and did not diverge between the treatments. Seston FA composition was influenced by community composition, which in turn was driven by silicate and phosphate limitation in the mesocosms and showed no difference between the CO2 treatments. These results suggest that CO2 effects are dampened in coastal communities that already experience high natural fluctuations in pCO(2). Although this coastal plankton community was tolerant of high pCO(2) levels, hypoxia and CO2 uptake by the sea can aggravate acidification and may lead to pH changes outside the currently experienced range for coastal organisms. Peer reviewed |
author2 |
Tvärminne Zoological Station |
format |
Article in Journal/Newspaper |
author |
Bermúdez, Rafael Winder, Monika Stuhr, Annegret Almén, Anna-Karin Engström-Öst, Jonna Riebesell, Ulf |
author_facet |
Bermúdez, Rafael Winder, Monika Stuhr, Annegret Almén, Anna-Karin Engström-Öst, Jonna Riebesell, Ulf |
author_sort |
Bermúdez, Rafael |
title |
Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
title_short |
Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
title_full |
Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
title_fullStr |
Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
title_full_unstemmed |
Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea |
title_sort |
effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the baltic sea |
publisher |
COPERNICUS GESELLSCHAFT MBH |
publishDate |
2017 |
url |
http://hdl.handle.net/10138/174842 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
10.5194/bg-13-6625-2016 Bermúdez , R , Winder , M , Stuhr , A , Almén , A-K , Engström-Öst , J & Riebesell , U 2016 , ' Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea ' , Biogeosciences , vol. 13 , no. 24 , pp. 6625-6635 . https://doi.org/10.5194/bg-13-6625-2016 Bibtex: urn:deef3c5e9ded4b73aeec6e119732dc55 85006467528 6ce1d74b-5316-4e41-a11e-155d49bbdb83 http://hdl.handle.net/10138/174842 000391624100002 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Biogeosciences |
container_volume |
13 |
container_issue |
24 |
container_start_page |
6625 |
op_container_end_page |
6635 |
_version_ |
1787427282772557824 |