Effects of high CO2 and warming on a Baltic Sea microzooplankton community
Global warming and ocean acidification are among the most important stressors for aquatic ecosystems in the future. To investigate their direct and indirect effects on a near-natural plankton community, a multiple-stressor approach is needed. Hence, we set up mesocosms in a full-factorial design to...
Published in: | ICES Journal of Marine Science |
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Language: | English |
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Oxford Univ. Press
2016
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Online Access: | https://oceanrep.geomar.de/id/eprint/30188/ https://oceanrep.geomar.de/id/eprint/30188/1/Horn%20et%20al%20ICES%20J%20MAR%20SCI%202015.pdf https://doi.org/10.1093/icesjms/fsv198 |
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ftoceanrep:oai:oceanrep.geomar.de:30188 2023-05-15T17:51:24+02:00 Effects of high CO2 and warming on a Baltic Sea microzooplankton community Horn, Henriette G. Boersma, Maarten Garzke, Jessica Löder, Martin G. J. Sommer, Ulrich Aberle, Nicole 2016-02 text https://oceanrep.geomar.de/id/eprint/30188/ https://oceanrep.geomar.de/id/eprint/30188/1/Horn%20et%20al%20ICES%20J%20MAR%20SCI%202015.pdf https://doi.org/10.1093/icesjms/fsv198 en eng Oxford Univ. Press https://oceanrep.geomar.de/id/eprint/30188/1/Horn%20et%20al%20ICES%20J%20MAR%20SCI%202015.pdf Horn, H. G., Boersma, M., Garzke, J., Löder, M. G. J., Sommer, U. and Aberle, N. (2016) Effects of high CO2 and warming on a Baltic Sea microzooplankton community. Open Access ICES Journal of Marine Science, 73 (3). pp. 772-782. DOI 10.1093/icesjms/fsv198 <https://doi.org/10.1093/icesjms%2Ffsv198>. doi:10.1093/icesjms/fsv198 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.1093/icesjms/fsv198 2023-04-07T15:21:40Z Global warming and ocean acidification are among the most important stressors for aquatic ecosystems in the future. To investigate their direct and indirect effects on a near-natural plankton community, a multiple-stressor approach is needed. Hence, we set up mesocosms in a full-factorial design to study the effects of both warming and high CO2 on a Baltic Sea autumn plankton community, concentrating on the impacts on microzooplankton (MZP). MZP abundance, biomass, and species composition were analysed over the course of the experiment. We observed that warming led to a reduced time-lag between the phytoplankton bloom and an MZP biomass maximum. MZP showed a significantly higher growth rate and an earlier biomass peak in the warm treatments while the biomass maximum was not affected. Increased pCO2 did not result in any significant effects on MZP biomass, growth rate, or species composition irrespective of the temperature, nor did we observe any significant interactions between CO2 and temperature. We attribute this to the high tolerance of this estuarine plankton community to fluctuations in pCO2, often resulting in CO2 concentrations higher than the predicted end-of-century concentration for open oceans. In contrast, warming can be expected to directly affect MZP and strengthen its coupling with phytoplankton by enhancing its grazing pressure. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) ICES Journal of Marine Science 73 3 772 782 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Global warming and ocean acidification are among the most important stressors for aquatic ecosystems in the future. To investigate their direct and indirect effects on a near-natural plankton community, a multiple-stressor approach is needed. Hence, we set up mesocosms in a full-factorial design to study the effects of both warming and high CO2 on a Baltic Sea autumn plankton community, concentrating on the impacts on microzooplankton (MZP). MZP abundance, biomass, and species composition were analysed over the course of the experiment. We observed that warming led to a reduced time-lag between the phytoplankton bloom and an MZP biomass maximum. MZP showed a significantly higher growth rate and an earlier biomass peak in the warm treatments while the biomass maximum was not affected. Increased pCO2 did not result in any significant effects on MZP biomass, growth rate, or species composition irrespective of the temperature, nor did we observe any significant interactions between CO2 and temperature. We attribute this to the high tolerance of this estuarine plankton community to fluctuations in pCO2, often resulting in CO2 concentrations higher than the predicted end-of-century concentration for open oceans. In contrast, warming can be expected to directly affect MZP and strengthen its coupling with phytoplankton by enhancing its grazing pressure. |
format |
Article in Journal/Newspaper |
author |
Horn, Henriette G. Boersma, Maarten Garzke, Jessica Löder, Martin G. J. Sommer, Ulrich Aberle, Nicole |
spellingShingle |
Horn, Henriette G. Boersma, Maarten Garzke, Jessica Löder, Martin G. J. Sommer, Ulrich Aberle, Nicole Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
author_facet |
Horn, Henriette G. Boersma, Maarten Garzke, Jessica Löder, Martin G. J. Sommer, Ulrich Aberle, Nicole |
author_sort |
Horn, Henriette G. |
title |
Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
title_short |
Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
title_full |
Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
title_fullStr |
Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
title_full_unstemmed |
Effects of high CO2 and warming on a Baltic Sea microzooplankton community |
title_sort |
effects of high co2 and warming on a baltic sea microzooplankton community |
publisher |
Oxford Univ. Press |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/30188/ https://oceanrep.geomar.de/id/eprint/30188/1/Horn%20et%20al%20ICES%20J%20MAR%20SCI%202015.pdf https://doi.org/10.1093/icesjms/fsv198 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/30188/1/Horn%20et%20al%20ICES%20J%20MAR%20SCI%202015.pdf Horn, H. G., Boersma, M., Garzke, J., Löder, M. G. J., Sommer, U. and Aberle, N. (2016) Effects of high CO2 and warming on a Baltic Sea microzooplankton community. Open Access ICES Journal of Marine Science, 73 (3). pp. 772-782. DOI 10.1093/icesjms/fsv198 <https://doi.org/10.1093/icesjms%2Ffsv198>. doi:10.1093/icesjms/fsv198 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/icesjms/fsv198 |
container_title |
ICES Journal of Marine Science |
container_volume |
73 |
container_issue |
3 |
container_start_page |
772 |
op_container_end_page |
782 |
_version_ |
1766158541562839040 |