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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ftawi:oai:epic.awi.de:42431 2024-09-15T18:28:15+00:00 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, Maria Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole 2016-11-28 https://epic.awi.de/id/eprint/42431/ https://hdl.handle.net/10013/epic.49112 unknown PUBLIC LIBRARY SCIENCE Horn, H. G. , Sander, N. , Stuhr, A. , Algueró, M. , Bach, L. T. , Löder, M. G. J. , Boersma, M. orcid:0000-0003-1010-026X , Riebesell, U. and Aberle, N. (2016) Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study , PLoS ONE . doi:10.1371/journal.pone.0165800 <https://doi.org/10.1371/journal.pone.0165800> , hdl:10013/epic.49112 EPIC3PLoS ONE, PUBLIC LIBRARY SCIENCE, ISSN: 1932-6203 Article isiRev 2016 ftawi https://doi.org/10.1371/journal.pone.0165800 2024-06-24T04:15:36Z 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. Article in Journal/Newspaper Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) PLOS ONE 11 11 e0165800 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
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 |
Article in Journal/Newspaper |
author |
Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró, Maria Bach, Lennart T. Löder, Martin G. J. Boersma, Maarten Riebesell, Ulf Aberle, Nicole |
spellingShingle |
Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró, Maria 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 |
author_facet |
Horn, Henriette G. Sander, Nils Stuhr, Annegret Algueró, Maria 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 SCIENCE |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/42431/ https://hdl.handle.net/10013/epic.49112 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
EPIC3PLoS ONE, PUBLIC LIBRARY SCIENCE, ISSN: 1932-6203 |
op_relation |
Horn, H. G. , Sander, N. , Stuhr, A. , Algueró, M. , Bach, L. T. , Löder, M. G. J. , Boersma, M. orcid:0000-0003-1010-026X , Riebesell, U. and Aberle, N. (2016) Low CO2 Sensitivity of Microzooplankton Communities in the Gullmar Fjord, Skagerrak: Evidence from a Long-Term Mesocosm Study , PLoS ONE . doi:10.1371/journal.pone.0165800 <https://doi.org/10.1371/journal.pone.0165800> , hdl:10013/epic.49112 |
op_doi |
https://doi.org/10.1371/journal.pone.0165800 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
11 |
container_start_page |
e0165800 |
_version_ |
1810469583137538048 |