CO 2 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 areconsidered to be key players in the biological carbon pump. Oceanacidification (OA) is expected to affect diatoms primarily by changing theavailability of CO 2 as a substrate for photosynthesis or throughaltered ecological interactio...
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Online Access: | https://doi.org/10.5194/os-15-1159-2019 http://ecite.utas.edu.au/134710 |
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ftunivtasecite:oai:ecite.utas.edu.au:134710 2023-05-15T17:51:35+02:00 CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities Bach, LT Taucher, J 2019 application/pdf https://doi.org/10.5194/os-15-1159-2019 http://ecite.utas.edu.au/134710 en eng Copernicus GmbH http://ecite.utas.edu.au/134710/1/134710 - CO2 effects on diatoms - a synthesis of more than a decade.pdf http://dx.doi.org/10.5194/os-15-1159-2019 Bach, LT and Taucher, J, CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities, Ocean Science, 15, (4) pp. 1159-1175. ISSN 1812-0784 (2019) [Refereed Article] http://ecite.utas.edu.au/134710 Earth Sciences Oceanography Biological Oceanography Refereed Article PeerReviewed 2019 ftunivtasecite https://doi.org/10.5194/os-15-1159-2019 2020-01-13T23:16:16Z Diatoms account for up to 50 % of marine primary production and areconsidered to be key players in the biological carbon pump. Oceanacidification (OA) is expected to affect diatoms primarily by changing theavailability of CO 2 as a substrate for photosynthesis or throughaltered ecological interactions within the marine food web. Yet, there islittle consensus how entire diatom communities will respond to increasing CO 2 . To address this question, we synthesized the literature from overa decade of OA-experiments with natural diatom communities to uncover the following: (1)ifand how bulk diatom communities respond to elevated CO 2 with respectto abundance or biomass and (2)if shifts within the diatom communities could beexpected and how they are expressed with respect to taxonomic affiliationand size structure. We found that bulk diatom communities responded to high CO 2 in ∼60 % of the experiments and in this case moreoften positively (56 %) than negatively (32 %) (12 % did not reportthe direction of change). Shifts among different diatom species wereobserved in 65 % of the experiments. Our synthesis supports thehypothesis that high CO 2 particularly favours larger species as 12 outof 13 experiments which investigated cell size found a shift towards largerspecies. Unravelling winners and losers with respect to taxonomic affiliationwas difficult due to a limited database. The OA-induced changes in diatomcompetitiveness and assemblage structure may alter key ecosystem servicesdue to the pivotal role diatoms play in trophic transfer and biogeochemicalcycles. Article in Journal/Newspaper Ocean acidification eCite UTAS (University of Tasmania) Ocean Science 15 4 1159 1175 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Biological Oceanography |
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Earth Sciences Oceanography Biological Oceanography Bach, LT Taucher, J CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
topic_facet |
Earth Sciences Oceanography Biological Oceanography |
description |
Diatoms account for up to 50 % of marine primary production and areconsidered to be key players in the biological carbon pump. Oceanacidification (OA) is expected to affect diatoms primarily by changing theavailability of CO 2 as a substrate for photosynthesis or throughaltered ecological interactions within the marine food web. Yet, there islittle consensus how entire diatom communities will respond to increasing CO 2 . To address this question, we synthesized the literature from overa decade of OA-experiments with natural diatom communities to uncover the following: (1)ifand how bulk diatom communities respond to elevated CO 2 with respectto abundance or biomass and (2)if shifts within the diatom communities could beexpected and how they are expressed with respect to taxonomic affiliationand size structure. We found that bulk diatom communities responded to high CO 2 in ∼60 % of the experiments and in this case moreoften positively (56 %) than negatively (32 %) (12 % did not reportthe direction of change). Shifts among different diatom species wereobserved in 65 % of the experiments. Our synthesis supports thehypothesis that high CO 2 particularly favours larger species as 12 outof 13 experiments which investigated cell size found a shift towards largerspecies. Unravelling winners and losers with respect to taxonomic affiliationwas difficult due to a limited database. The OA-induced changes in diatomcompetitiveness and assemblage structure may alter key ecosystem servicesdue to the pivotal role diatoms play in trophic transfer and biogeochemicalcycles. |
format |
Article in Journal/Newspaper |
author |
Bach, LT Taucher, J |
author_facet |
Bach, LT Taucher, J |
author_sort |
Bach, LT |
title |
CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_short |
CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_full |
CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_fullStr |
CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_full_unstemmed |
CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
title_sort |
co 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
publisher |
Copernicus GmbH |
publishDate |
2019 |
url |
https://doi.org/10.5194/os-15-1159-2019 http://ecite.utas.edu.au/134710 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://ecite.utas.edu.au/134710/1/134710 - CO2 effects on diatoms - a synthesis of more than a decade.pdf http://dx.doi.org/10.5194/os-15-1159-2019 Bach, LT and Taucher, J, CO 2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities, Ocean Science, 15, (4) pp. 1159-1175. ISSN 1812-0784 (2019) [Refereed Article] http://ecite.utas.edu.au/134710 |
op_doi |
https://doi.org/10.5194/os-15-1159-2019 |
container_title |
Ocean Science |
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15 |
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4 |
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1159 |
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1175 |
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