CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities
Diatoms account for up to 50 % of marine primary production and are considered to be key players in the biological carbon pump. Ocean acidification (OA) is expected to affect diatoms primarily by changing the availability of CO2 as a substrate for photosynthesis or through altered ecological interac...
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Copernicus Publications
2019
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00000131 2023-05-15T17:50:43+02:00 CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities Bach, Lennart Thomas Taucher, Jan 2019-08 electronic https://doi.org/10.5194/os-15-1159-2019 https://noa.gwlb.de/receive/cop_mods_00000131 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000107/os-15-1159-2019.pdf https://os.copernicus.org/articles/15/1159/2019/os-15-1159-2019.pdf eng eng Copernicus Publications Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-15-1159-2019 https://noa.gwlb.de/receive/cop_mods_00000131 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000107/os-15-1159-2019.pdf https://os.copernicus.org/articles/15/1159/2019/os-15-1159-2019.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2019 ftnonlinearchiv https://doi.org/10.5194/os-15-1159-2019 2022-02-08T23:02:28Z Diatoms account for up to 50 % of marine primary production and are considered to be key players in the biological carbon pump. Ocean acidification (OA) is expected to affect diatoms primarily by changing the availability of CO2 as a substrate for photosynthesis or through altered ecological interactions within the marine food web. Yet, there is little consensus how entire diatom communities will respond to increasing CO2. To address this question, we synthesized the literature from over a decade of OA-experiments with natural diatom communities to uncover the following: (1) if and how bulk diatom communities respond to elevated CO2 with respect to abundance or biomass and (2) if shifts within the diatom communities could be expected and how they are expressed with respect to taxonomic affiliation and size structure. We found that bulk diatom communities responded to high CO2 in ∼60 % of the experiments and in this case more often positively (56 %) than negatively (32 %) (12 % did not report the direction of change). Shifts among different diatom species were observed in 65 % of the experiments. Our synthesis supports the hypothesis that high CO2 particularly favours larger species as 12 out of 13 experiments which investigated cell size found a shift towards larger species. Unravelling winners and losers with respect to taxonomic affiliation was difficult due to a limited database. The OA-induced changes in diatom competitiveness and assemblage structure may alter key ecosystem services due to the pivotal role diatoms play in trophic transfer and biogeochemical cycles. Article in Journal/Newspaper Ocean acidification Niedersächsisches Online-Archiv NOA Ocean Science 15 4 1159 1175 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Bach, Lennart Thomas Taucher, Jan CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
topic_facet |
article Verlagsveröffentlichung |
description |
Diatoms account for up to 50 % of marine primary production and are considered to be key players in the biological carbon pump. Ocean acidification (OA) is expected to affect diatoms primarily by changing the availability of CO2 as a substrate for photosynthesis or through altered ecological interactions within the marine food web. Yet, there is little consensus how entire diatom communities will respond to increasing CO2. To address this question, we synthesized the literature from over a decade of OA-experiments with natural diatom communities to uncover the following: (1) if and how bulk diatom communities respond to elevated CO2 with respect to abundance or biomass and (2) if shifts within the diatom communities could be expected and how they are expressed with respect to taxonomic affiliation and size structure. We found that bulk diatom communities responded to high CO2 in ∼60 % of the experiments and in this case more often positively (56 %) than negatively (32 %) (12 % did not report the direction of change). Shifts among different diatom species were observed in 65 % of the experiments. Our synthesis supports the hypothesis that high CO2 particularly favours larger species as 12 out of 13 experiments which investigated cell size found a shift towards larger species. Unravelling winners and losers with respect to taxonomic affiliation was difficult due to a limited database. The OA-induced changes in diatom competitiveness and assemblage structure may alter key ecosystem services due to the pivotal role diatoms play in trophic transfer and biogeochemical cycles. |
format |
Article in Journal/Newspaper |
author |
Bach, Lennart Thomas Taucher, Jan |
author_facet |
Bach, Lennart Thomas Taucher, Jan |
author_sort |
Bach, Lennart Thomas |
title |
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_short |
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_full |
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_fullStr |
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_full_unstemmed |
CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_sort |
co2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
publisher |
Copernicus Publications |
publishDate |
2019 |
url |
https://doi.org/10.5194/os-15-1159-2019 https://noa.gwlb.de/receive/cop_mods_00000131 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000107/os-15-1159-2019.pdf https://os.copernicus.org/articles/15/1159/2019/os-15-1159-2019.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
Ocean Science -- http://www.bibliothek.uni-regensburg.de/ezeit/?2183769 -- http://www.copernicus.org/EGU/os/os.html -- 1812-0792 https://doi.org/10.5194/os-15-1159-2019 https://noa.gwlb.de/receive/cop_mods_00000131 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00000107/os-15-1159-2019.pdf https://os.copernicus.org/articles/15/1159/2019/os-15-1159-2019.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/os-15-1159-2019 |
container_title |
Ocean Science |
container_volume |
15 |
container_issue |
4 |
container_start_page |
1159 |
op_container_end_page |
1175 |
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1766157604687446016 |