Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels
Anthropogenic carbon dioxide (CO2) emissions are causing severe changes in the global inorganic carbon balance of the oceans. Associated ocean acidification is expected to impose a major threat to marine ecosystems worldwide, and it is also expected to be amplified in the Baltic Sea where the system...
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ftoceanrep:oai:oceanrep.geomar.de:30772 2023-05-15T17:50:42+02:00 Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels Jansson, A. Lischka, Silke Boxhammer, Tim Schulz, Kai G. Norkko, J. 2016-06-09 text https://oceanrep.geomar.de/id/eprint/30772/ https://oceanrep.geomar.de/id/eprint/30772/1/bg-13-3377-2016.pdf https://doi.org/10.5194/bg-13-3377-2016 en eng Copernicus Publications (EGU) https://oceanrep.geomar.de/id/eprint/30772/1/bg-13-3377-2016.pdf Jansson, A., Lischka, S. , Boxhammer, T. , Schulz, K. G. and Norkko, J. (2016) Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels. Open Access Biogeosciences (BG), 12 (24). pp. 20411-20435. DOI 10.5194/bg-13-3377-2016 <https://doi.org/10.5194/bg-13-3377-2016>. doi:10.5194/bg-13-3377-2016 cc_by_3.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2016 ftoceanrep https://doi.org/10.5194/bg-13-3377-2016 2023-04-07T15:22:42Z Anthropogenic carbon dioxide (CO2) emissions are causing severe changes in the global inorganic carbon balance of the oceans. Associated ocean acidification is expected to impose a major threat to marine ecosystems worldwide, and it is also expected to be amplified in the Baltic Sea where the system is already at present exposed to relatively large natural seasonal and diel pH fluctuations. The response of organisms to future ocean acidification has primarily been studied in single-species experiments, whereas the knowledge of community-wide responses is still limited. To study responses of the Baltic Sea pelagic community to a range of future CO2-scenarios, six ∼ 55 m3 pelagic mesocosms were deployed in the northern Baltic Sea in June 2012. In this specific study we focused on the tolerance, development and subsequent settlement process of the larvae of the benthic key-species Macoma balthica when exposed to different levels of future CO2. We found that the settling of M. balthica was delayed along the increasing CO2 gradient of the mesocosms. Also, when exposed to increasing CO2 levels larvae settled at a larger size, indicating a developmental delay. With on-going climate change, both the frequency and extent of regularly occurring high CO2 conditions is likely to increase, and a permanent pH decrease will likely occur. The strong impact of increasing CO2 levels on early-stage bivalves is alarming as these stages are crucial for sustaining viable populations, and a failure in their recruitment would ultimately lead to negative effects on the population. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Biogeosciences 13 11 3377 3385 |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
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English |
description |
Anthropogenic carbon dioxide (CO2) emissions are causing severe changes in the global inorganic carbon balance of the oceans. Associated ocean acidification is expected to impose a major threat to marine ecosystems worldwide, and it is also expected to be amplified in the Baltic Sea where the system is already at present exposed to relatively large natural seasonal and diel pH fluctuations. The response of organisms to future ocean acidification has primarily been studied in single-species experiments, whereas the knowledge of community-wide responses is still limited. To study responses of the Baltic Sea pelagic community to a range of future CO2-scenarios, six ∼ 55 m3 pelagic mesocosms were deployed in the northern Baltic Sea in June 2012. In this specific study we focused on the tolerance, development and subsequent settlement process of the larvae of the benthic key-species Macoma balthica when exposed to different levels of future CO2. We found that the settling of M. balthica was delayed along the increasing CO2 gradient of the mesocosms. Also, when exposed to increasing CO2 levels larvae settled at a larger size, indicating a developmental delay. With on-going climate change, both the frequency and extent of regularly occurring high CO2 conditions is likely to increase, and a permanent pH decrease will likely occur. The strong impact of increasing CO2 levels on early-stage bivalves is alarming as these stages are crucial for sustaining viable populations, and a failure in their recruitment would ultimately lead to negative effects on the population. |
format |
Article in Journal/Newspaper |
author |
Jansson, A. Lischka, Silke Boxhammer, Tim Schulz, Kai G. Norkko, J. |
spellingShingle |
Jansson, A. Lischka, Silke Boxhammer, Tim Schulz, Kai G. Norkko, J. Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
author_facet |
Jansson, A. Lischka, Silke Boxhammer, Tim Schulz, Kai G. Norkko, J. |
author_sort |
Jansson, A. |
title |
Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
title_short |
Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
title_full |
Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
title_fullStr |
Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
title_full_unstemmed |
Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels |
title_sort |
survival and settling of larval macoma balthica in a large-scale mesocosm experiment at different fco2 levels |
publisher |
Copernicus Publications (EGU) |
publishDate |
2016 |
url |
https://oceanrep.geomar.de/id/eprint/30772/ https://oceanrep.geomar.de/id/eprint/30772/1/bg-13-3377-2016.pdf https://doi.org/10.5194/bg-13-3377-2016 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/30772/1/bg-13-3377-2016.pdf Jansson, A., Lischka, S. , Boxhammer, T. , Schulz, K. G. and Norkko, J. (2016) Survival and settling of larval Macoma balthica in a large-scale mesocosm experiment at different fCO2 levels. Open Access Biogeosciences (BG), 12 (24). pp. 20411-20435. DOI 10.5194/bg-13-3377-2016 <https://doi.org/10.5194/bg-13-3377-2016>. doi:10.5194/bg-13-3377-2016 |
op_rights |
cc_by_3.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-13-3377-2016 |
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Biogeosciences |
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13 |
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11 |
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3377 |
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3385 |
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