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 areconsidered to be key players in the biological carbon pump. Oceanacidification (OA) is expected to affect diatoms primarily by changing theavailability of CO2 as a substrate for photosynthesis or throughaltered ecological interaction...
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2019
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ftunivtasmania:oai:eprints.utas.edu.au:31315 2023-05-15T17:50:37+02:00 CO2 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://eprints.utas.edu.au/31315/ https://eprints.utas.edu.au/31315/1/134710%20-%20CO2%20effects%20on%20diatoms%20-%20a%20synthesis%20of%20more%20than%20a%20decade.pdf en eng Copernicus GmbH https://eprints.utas.edu.au/31315/1/134710%20-%20CO2%20effects%20on%20diatoms%20-%20a%20synthesis%20of%20more%20than%20a%20decade.pdf Bach, LT orcid:0000-0003-0202-3671 and Taucher, J 2019 , 'CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities' , Ocean Science, vol. 15, no. 4 , 1159–1175 , doi:10.5194/os-15-1159-2019 <http://dx.doi.org/10.5194/os-15-1159-2019>. ocean acidification primary production phytoplankton diatom Article PeerReviewed 2019 ftunivtasmania https://doi.org/10.5194/os-15-1159-2019 2021-09-20T22:17:51Z 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 CO2 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 increasingCO2. 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 CO2 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 highCO2 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 CO2 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 University of Tasmania: UTas ePrints Ocean Science 15 4 1159 1175 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
ocean acidification primary production phytoplankton diatom |
spellingShingle |
ocean acidification primary production phytoplankton diatom Bach, LT Taucher, J CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities |
topic_facet |
ocean acidification primary production phytoplankton diatom |
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 CO2 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 increasingCO2. 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 CO2 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 highCO2 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 CO2 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 |
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 GmbH |
publishDate |
2019 |
url |
https://eprints.utas.edu.au/31315/ https://eprints.utas.edu.au/31315/1/134710%20-%20CO2%20effects%20on%20diatoms%20-%20a%20synthesis%20of%20more%20than%20a%20decade.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://eprints.utas.edu.au/31315/1/134710%20-%20CO2%20effects%20on%20diatoms%20-%20a%20synthesis%20of%20more%20than%20a%20decade.pdf Bach, LT orcid:0000-0003-0202-3671 and Taucher, J 2019 , 'CO2 effects on diatoms: a synthesis of more than a decade of ocean acidification experiments with natural communities' , Ocean Science, vol. 15, no. 4 , 1159–1175 , doi:10.5194/os-15-1159-2019 <http://dx.doi.org/10.5194/os-15-1159-2019>. |
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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1766157461202403328 |