Simulated ocean acidification reveals winners and losers in coastal phytoplankton
The oceans absorb ~25% of the annual anthropogenic CO2 emissions. This causes a shift in the marine carbonate chemistry termed ocean acidification (OA). OA is expected to influence metabolic processes in phytoplankton species but it is unclear how the combination of individual physiological changes...
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Public Library of Science
2017
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Online Access: | https://oceanrep.geomar.de/id/eprint/40523/ https://oceanrep.geomar.de/id/eprint/40523/1/Bach%20et%20al.,%202017%20-%20Simulated%20ocean%20acidification%20reveals%20winners%20and%20losers%20in%20coastal%20phytoplankton.pdf https://oceanrep.geomar.de/id/eprint/40523/7/S1_Fig.pdf https://oceanrep.geomar.de/id/eprint/40523/6/S1_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/5/S2_Fig.tiff https://oceanrep.geomar.de/id/eprint/40523/4/S2_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/2/S3_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/3/S3_Fig.tif https://doi.org/10.1371/journal.pone.0188198 |
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ftoceanrep:oai:oceanrep.geomar.de:40523 2023-05-15T17:50:40+02:00 Simulated ocean acidification reveals winners and losers in coastal phytoplankton Bach, Lennart T. Alvarez-Fernandez, Santiago Hornick, Thomas Stuhr, Annegret Riebesell, Ulf 2017-11-30 text other image https://oceanrep.geomar.de/id/eprint/40523/ https://oceanrep.geomar.de/id/eprint/40523/1/Bach%20et%20al.,%202017%20-%20Simulated%20ocean%20acidification%20reveals%20winners%20and%20losers%20in%20coastal%20phytoplankton.pdf https://oceanrep.geomar.de/id/eprint/40523/7/S1_Fig.pdf https://oceanrep.geomar.de/id/eprint/40523/6/S1_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/5/S2_Fig.tiff https://oceanrep.geomar.de/id/eprint/40523/4/S2_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/2/S3_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/3/S3_Fig.tif https://doi.org/10.1371/journal.pone.0188198 en eng Public Library of Science https://oceanrep.geomar.de/id/eprint/40523/1/Bach%20et%20al.,%202017%20-%20Simulated%20ocean%20acidification%20reveals%20winners%20and%20losers%20in%20coastal%20phytoplankton.pdf https://oceanrep.geomar.de/id/eprint/40523/7/S1_Fig.pdf https://oceanrep.geomar.de/id/eprint/40523/6/S1_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/5/S2_Fig.tiff https://oceanrep.geomar.de/id/eprint/40523/4/S2_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/2/S3_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/3/S3_Fig.tif Bach, L. T. , Alvarez-Fernandez, S., Hornick, T., Stuhr, A. and Riebesell, U. (2017) Simulated ocean acidification reveals winners and losers in coastal phytoplankton. Open Access PLoS ONE, 12 (11). e0188198. DOI 10.1371/journal.pone.0188198 <https://doi.org/10.1371/journal.pone.0188198>. doi:10.1371/journal.pone.0188198 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1371/journal.pone.0188198 2023-04-07T15:36:56Z The oceans absorb ~25% of the annual anthropogenic CO2 emissions. This causes a shift in the marine carbonate chemistry termed ocean acidification (OA). OA is expected to influence metabolic processes in phytoplankton species but it is unclear how the combination of individual physiological changes alters the structure of entire phytoplankton communities. To investigate this, we deployed ten pelagic mesocosms (volume ~50 m3) for 113 days at the west coast of Sweden and simulated OA (pCO2 = 760 μatm) in five of them while the other five served as controls (380 μatm). We found: (1) Bulk chlorophyll a concentration and 10 out of 16 investigated phytoplankton groups were significantly and mostly positively affected by elevated CO2 concentrations. However, CO2 effects on abundance or biomass were generally subtle and present only during certain succession stages. (2) Some of the CO2-affected phytoplankton groups seemed to respond directly to altered carbonate chemistry (e.g. diatoms) while others (e.g. Synechococcus) were more likely to be indirectly affected through CO2 sensitive competitors or grazers. (3) Picoeukaryotic phytoplankton (0.2–2 μm) showed the clearest and relatively strong positive CO2 responses during several succession stages. We attribute this not only to a CO2 fertilization of their photosynthetic apparatus but also to an increased nutrient competitiveness under acidified (i.e. low pH) conditions. The stimulating influence of high CO2/low pH on picoeukaryote abundance observed in this experiment is strikingly consistent with results from previous studies, suggesting that picoeukaryotes are among the winners in a future ocean. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) PLOS ONE 12 11 e0188198 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The oceans absorb ~25% of the annual anthropogenic CO2 emissions. This causes a shift in the marine carbonate chemistry termed ocean acidification (OA). OA is expected to influence metabolic processes in phytoplankton species but it is unclear how the combination of individual physiological changes alters the structure of entire phytoplankton communities. To investigate this, we deployed ten pelagic mesocosms (volume ~50 m3) for 113 days at the west coast of Sweden and simulated OA (pCO2 = 760 μatm) in five of them while the other five served as controls (380 μatm). We found: (1) Bulk chlorophyll a concentration and 10 out of 16 investigated phytoplankton groups were significantly and mostly positively affected by elevated CO2 concentrations. However, CO2 effects on abundance or biomass were generally subtle and present only during certain succession stages. (2) Some of the CO2-affected phytoplankton groups seemed to respond directly to altered carbonate chemistry (e.g. diatoms) while others (e.g. Synechococcus) were more likely to be indirectly affected through CO2 sensitive competitors or grazers. (3) Picoeukaryotic phytoplankton (0.2–2 μm) showed the clearest and relatively strong positive CO2 responses during several succession stages. We attribute this not only to a CO2 fertilization of their photosynthetic apparatus but also to an increased nutrient competitiveness under acidified (i.e. low pH) conditions. The stimulating influence of high CO2/low pH on picoeukaryote abundance observed in this experiment is strikingly consistent with results from previous studies, suggesting that picoeukaryotes are among the winners in a future ocean. |
format |
Article in Journal/Newspaper |
author |
Bach, Lennart T. Alvarez-Fernandez, Santiago Hornick, Thomas Stuhr, Annegret Riebesell, Ulf |
spellingShingle |
Bach, Lennart T. Alvarez-Fernandez, Santiago Hornick, Thomas Stuhr, Annegret Riebesell, Ulf Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
author_facet |
Bach, Lennart T. Alvarez-Fernandez, Santiago Hornick, Thomas Stuhr, Annegret Riebesell, Ulf |
author_sort |
Bach, Lennart T. |
title |
Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
title_short |
Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
title_full |
Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
title_fullStr |
Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
title_full_unstemmed |
Simulated ocean acidification reveals winners and losers in coastal phytoplankton |
title_sort |
simulated ocean acidification reveals winners and losers in coastal phytoplankton |
publisher |
Public Library of Science |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/40523/ https://oceanrep.geomar.de/id/eprint/40523/1/Bach%20et%20al.,%202017%20-%20Simulated%20ocean%20acidification%20reveals%20winners%20and%20losers%20in%20coastal%20phytoplankton.pdf https://oceanrep.geomar.de/id/eprint/40523/7/S1_Fig.pdf https://oceanrep.geomar.de/id/eprint/40523/6/S1_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/5/S2_Fig.tiff https://oceanrep.geomar.de/id/eprint/40523/4/S2_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/2/S3_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/3/S3_Fig.tif https://doi.org/10.1371/journal.pone.0188198 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/40523/1/Bach%20et%20al.,%202017%20-%20Simulated%20ocean%20acidification%20reveals%20winners%20and%20losers%20in%20coastal%20phytoplankton.pdf https://oceanrep.geomar.de/id/eprint/40523/7/S1_Fig.pdf https://oceanrep.geomar.de/id/eprint/40523/6/S1_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/5/S2_Fig.tiff https://oceanrep.geomar.de/id/eprint/40523/4/S2_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/2/S3_Table.xlsx https://oceanrep.geomar.de/id/eprint/40523/3/S3_Fig.tif Bach, L. T. , Alvarez-Fernandez, S., Hornick, T., Stuhr, A. and Riebesell, U. (2017) Simulated ocean acidification reveals winners and losers in coastal phytoplankton. Open Access PLoS ONE, 12 (11). e0188198. DOI 10.1371/journal.pone.0188198 <https://doi.org/10.1371/journal.pone.0188198>. doi:10.1371/journal.pone.0188198 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0188198 |
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PLOS ONE |
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