Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study
Ocean acidification is considered as a crucial stressor for marine communities. In this study, we tested the effects of the IPCC RPC6.0 end-of-century acidification scenario on a natural plankton community in the Gullmar Fjord, Sweden, during a long-term mesocosm experiment from a spring bloom to a...
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ftpubmed:oai:pubmedcentral.nih.gov:5125589 2023-05-15T17:51:31+02:00 Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró-Muñiz, María Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole 2016-11-28 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5125589/ http://www.ncbi.nlm.nih.gov/pubmed/27893740 https://doi.org/10.1371/journal.pone.0165800 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5125589/ http://www.ncbi.nlm.nih.gov/pubmed/27893740 http://dx.doi.org/10.1371/journal.pone.0165800 © 2016 Horn et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2016 ftpubmed https://doi.org/10.1371/journal.pone.0165800 2016-12-18T01:03:50Z Ocean acidification is considered as a crucial stressor for marine communities. In this study, we tested the effects of the IPCC RPC6.0 end-of-century acidification scenario on a natural plankton community in the Gullmar Fjord, Sweden, during a long-term mesocosm experiment from a spring bloom to a mid-summer situation. The focus of this study was on microzooplankton and its interactions with phytoplankton and mesozooplankton. The microzooplankton community was dominated by ciliates, especially small Strombidium sp., with the exception of the last days when heterotrophic dinoflagellates increased in abundance. We did not observe any effects of high CO2 on the community composition and diversity of microzooplankton. While ciliate abundance, biomass and growth rate were not affected by elevated CO2, we observed a positive effect of elevated CO2 on dinoflagellate abundances. Additionally, growth rates of dinoflagellates were significantly higher in the high CO2 treatments. Given the higher Chlorophyll a content measured under high CO2, our results point at mainly indirect effects of CO2 on microzooplankton caused by changes in phytoplankton standing stocks, in this case most likely an increase in small-sized phytoplankton of <8 μm. Overall, the results from the present study covering the most important part of the growing season indicate that coastal microzooplankton communities are rather robust towards realistic acidification scenarios. Text Ocean acidification PubMed Central (PMC) PLOS ONE 11 11 e0165800 |
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Research Article Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró-Muñiz, María Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
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Research Article |
description |
Ocean acidification is considered as a crucial stressor for marine communities. In this study, we tested the effects of the IPCC RPC6.0 end-of-century acidification scenario on a natural plankton community in the Gullmar Fjord, Sweden, during a long-term mesocosm experiment from a spring bloom to a mid-summer situation. The focus of this study was on microzooplankton and its interactions with phytoplankton and mesozooplankton. The microzooplankton community was dominated by ciliates, especially small Strombidium sp., with the exception of the last days when heterotrophic dinoflagellates increased in abundance. We did not observe any effects of high CO2 on the community composition and diversity of microzooplankton. While ciliate abundance, biomass and growth rate were not affected by elevated CO2, we observed a positive effect of elevated CO2 on dinoflagellate abundances. Additionally, growth rates of dinoflagellates were significantly higher in the high CO2 treatments. Given the higher Chlorophyll a content measured under high CO2, our results point at mainly indirect effects of CO2 on microzooplankton caused by changes in phytoplankton standing stocks, in this case most likely an increase in small-sized phytoplankton of <8 μm. Overall, the results from the present study covering the most important part of the growing season indicate that coastal microzooplankton communities are rather robust towards realistic acidification scenarios. |
format |
Text |
author |
Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró-Muñiz, María Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole |
author_facet |
Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró-Muñiz, María Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole |
author_sort |
Horn, Henriette G. |
title |
Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
title_short |
Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
title_full |
Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
title_fullStr |
Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
title_full_unstemmed |
Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study |
title_sort |
low co2 sensitivity of microzooplankton communities in the gullmar fjord, skagerrak: evidence from a long-term mesocosm study |
publisher |
Public Library of Science |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5125589/ http://www.ncbi.nlm.nih.gov/pubmed/27893740 https://doi.org/10.1371/journal.pone.0165800 |
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Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5125589/ http://www.ncbi.nlm.nih.gov/pubmed/27893740 http://dx.doi.org/10.1371/journal.pone.0165800 |
op_rights |
© 2016 Horn et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0165800 |
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PLOS ONE |
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