Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling
Ocean acidification (OA) is affecting marine ecosystems through changes in carbonate chemistry that may influence consumers of phytoplankton, often via trophic pathways. Using a mesocosm approach, we investigated OA effects on a subtropical zooplankton community during oligotrophic, bloom, and post-...
Published in: | Frontiers in Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://oceanrep.geomar.de/id/eprint/45993/ https://oceanrep.geomar.de/id/eprint/45993/1/fmars-06-00061.pdf https://oceanrep.geomar.de/id/eprint/45993/2/Table_1_Analyzing%20the%20Impacts%20of%20Elevated-CO2%20Levels%20on%20the%20Development%20of%20a%20Subtropical%20Zooplankton%20Community%20During%20Oligotrophic%20Conditions%20and%20Simu.DOCX https://doi.org/10.3389/fmars.2019.00061 |
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ftoceanrep:oai:oceanrep.geomar.de:45993 2023-05-15T17:51:43+02:00 Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling Algueró-Muñiz, María Horn, Henriette G. Alvarez-Fernandez, Santiago Spisla, Carsten Aberle, Nicole Bach, Lennart T. Guan, Wanchun Achterberg, Eric P. Riebesell, Ulf Boersma, Maarten 2019-02-25 text https://oceanrep.geomar.de/id/eprint/45993/ https://oceanrep.geomar.de/id/eprint/45993/1/fmars-06-00061.pdf https://oceanrep.geomar.de/id/eprint/45993/2/Table_1_Analyzing%20the%20Impacts%20of%20Elevated-CO2%20Levels%20on%20the%20Development%20of%20a%20Subtropical%20Zooplankton%20Community%20During%20Oligotrophic%20Conditions%20and%20Simu.DOCX https://doi.org/10.3389/fmars.2019.00061 en eng Frontiers https://oceanrep.geomar.de/id/eprint/45993/1/fmars-06-00061.pdf https://oceanrep.geomar.de/id/eprint/45993/2/Table_1_Analyzing%20the%20Impacts%20of%20Elevated-CO2%20Levels%20on%20the%20Development%20of%20a%20Subtropical%20Zooplankton%20Community%20During%20Oligotrophic%20Conditions%20and%20Simu.DOCX Algueró-Muñiz, M., Horn, H. G., Alvarez-Fernandez, S., Spisla, C., Aberle, N., Bach, L. T. , Guan, W., Achterberg, E. P. , Riebesell, U. and Boersma, M. (2019) Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling. Open Access Frontiers in Marine Science, 6 (61). DOI 10.3389/fmars.2019.00061 <https://doi.org/10.3389/fmars.2019.00061>. doi:10.3389/fmars.2019.00061 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2019 ftoceanrep https://doi.org/10.3389/fmars.2019.00061 2023-04-07T15:44:08Z Ocean acidification (OA) is affecting marine ecosystems through changes in carbonate chemistry that may influence consumers of phytoplankton, often via trophic pathways. Using a mesocosm approach, we investigated OA effects on a subtropical zooplankton community during oligotrophic, bloom, and post-bloom phases under a range of different pCO2 levels (from ∼400 to ∼1480 μatm). Furthermore, we simulated an upwelling event by adding 650 m-depth nutrient-rich water to the mesocosms, which initiated a phytoplankton bloom. No effects of pCO2 on the zooplankton community were visible in the oligotrophic conditions before the bloom. The zooplankton community responded to phytoplankton bloom by increased abundances in all treatments, although the response was delayed under high-pCO2 conditions. Microzooplankton was dominated by small dinoflagellates and aloricate ciliates, which were more abundant under medium- to high-pCO2 conditions. The most abundant mesozooplankters were calanoid copepods, which did not respond to CO2 treatments during the oligotrophic phase of the experiment but were found in higher abundance under medium- and high-pCO2 conditions toward the end of the experiment, most likely as a response to increased phyto- and microzooplankton standing stocks. The second most abundant mesozooplankton taxon were appendicularians, which did not show a response to the different pCO2 treatments. Overall, CO2 effects on zooplankton seemed to be primarily transmitted through significant CO2 effects on phytoplankton and therefore indirect pathways. We conclude that elevated pCO2 can change trophic cascades with significant effects on zooplankton, what might ultimately affect higher trophic levels in the future. Article in Journal/Newspaper Ocean acidification Copepods OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Ocean acidification (OA) is affecting marine ecosystems through changes in carbonate chemistry that may influence consumers of phytoplankton, often via trophic pathways. Using a mesocosm approach, we investigated OA effects on a subtropical zooplankton community during oligotrophic, bloom, and post-bloom phases under a range of different pCO2 levels (from ∼400 to ∼1480 μatm). Furthermore, we simulated an upwelling event by adding 650 m-depth nutrient-rich water to the mesocosms, which initiated a phytoplankton bloom. No effects of pCO2 on the zooplankton community were visible in the oligotrophic conditions before the bloom. The zooplankton community responded to phytoplankton bloom by increased abundances in all treatments, although the response was delayed under high-pCO2 conditions. Microzooplankton was dominated by small dinoflagellates and aloricate ciliates, which were more abundant under medium- to high-pCO2 conditions. The most abundant mesozooplankters were calanoid copepods, which did not respond to CO2 treatments during the oligotrophic phase of the experiment but were found in higher abundance under medium- and high-pCO2 conditions toward the end of the experiment, most likely as a response to increased phyto- and microzooplankton standing stocks. The second most abundant mesozooplankton taxon were appendicularians, which did not show a response to the different pCO2 treatments. Overall, CO2 effects on zooplankton seemed to be primarily transmitted through significant CO2 effects on phytoplankton and therefore indirect pathways. We conclude that elevated pCO2 can change trophic cascades with significant effects on zooplankton, what might ultimately affect higher trophic levels in the future. |
format |
Article in Journal/Newspaper |
author |
Algueró-Muñiz, María Horn, Henriette G. Alvarez-Fernandez, Santiago Spisla, Carsten Aberle, Nicole Bach, Lennart T. Guan, Wanchun Achterberg, Eric P. Riebesell, Ulf Boersma, Maarten |
spellingShingle |
Algueró-Muñiz, María Horn, Henriette G. Alvarez-Fernandez, Santiago Spisla, Carsten Aberle, Nicole Bach, Lennart T. Guan, Wanchun Achterberg, Eric P. Riebesell, Ulf Boersma, Maarten Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
author_facet |
Algueró-Muñiz, María Horn, Henriette G. Alvarez-Fernandez, Santiago Spisla, Carsten Aberle, Nicole Bach, Lennart T. Guan, Wanchun Achterberg, Eric P. Riebesell, Ulf Boersma, Maarten |
author_sort |
Algueró-Muñiz, María |
title |
Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
title_short |
Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
title_full |
Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
title_fullStr |
Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
title_full_unstemmed |
Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling |
title_sort |
analyzing the impacts of elevated-co2 levels on the development of a subtropical zooplankton community during oligotrophic conditions and simulated upwelling |
publisher |
Frontiers |
publishDate |
2019 |
url |
https://oceanrep.geomar.de/id/eprint/45993/ https://oceanrep.geomar.de/id/eprint/45993/1/fmars-06-00061.pdf https://oceanrep.geomar.de/id/eprint/45993/2/Table_1_Analyzing%20the%20Impacts%20of%20Elevated-CO2%20Levels%20on%20the%20Development%20of%20a%20Subtropical%20Zooplankton%20Community%20During%20Oligotrophic%20Conditions%20and%20Simu.DOCX https://doi.org/10.3389/fmars.2019.00061 |
genre |
Ocean acidification Copepods |
genre_facet |
Ocean acidification Copepods |
op_relation |
https://oceanrep.geomar.de/id/eprint/45993/1/fmars-06-00061.pdf https://oceanrep.geomar.de/id/eprint/45993/2/Table_1_Analyzing%20the%20Impacts%20of%20Elevated-CO2%20Levels%20on%20the%20Development%20of%20a%20Subtropical%20Zooplankton%20Community%20During%20Oligotrophic%20Conditions%20and%20Simu.DOCX Algueró-Muñiz, M., Horn, H. G., Alvarez-Fernandez, S., Spisla, C., Aberle, N., Bach, L. T. , Guan, W., Achterberg, E. P. , Riebesell, U. and Boersma, M. (2019) Analyzing the Impacts of Elevated-CO2 Levels on the Development of a Subtropical Zooplankton Community During Oligotrophic Conditions and Simulated Upwelling. Open Access Frontiers in Marine Science, 6 (61). DOI 10.3389/fmars.2019.00061 <https://doi.org/10.3389/fmars.2019.00061>. doi:10.3389/fmars.2019.00061 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fmars.2019.00061 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
_version_ |
1766158946310029312 |