Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities
Ocean acidification and associated shifts in carbonate chemistry speciation induced by increasing levels of atmospheric carbon dioxide (CO2) have the potential to impact marine biota in various ways. The process of biogenic calcification, for instance, is usually shown to be negatively affected. In...
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Language: | English |
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Copernicus Publications (EGU)
2011
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Online Access: | https://oceanrep.geomar.de/id/eprint/10309/ https://oceanrep.geomar.de/id/eprint/10309/1/bg-8-771-2011.pdf https://doi.org/10.5194/bg-8-771-2011 |
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ftoceanrep:oai:oceanrep.geomar.de:10309 2023-05-15T17:51:04+02:00 Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities Krug, Sebastian Schulz, Kai Riebesell, Ulf 2011 text https://oceanrep.geomar.de/id/eprint/10309/ https://oceanrep.geomar.de/id/eprint/10309/1/bg-8-771-2011.pdf https://doi.org/10.5194/bg-8-771-2011 en eng Copernicus Publications (EGU) https://oceanrep.geomar.de/id/eprint/10309/1/bg-8-771-2011.pdf Krug, S., Schulz, K. and Riebesell, U. (2011) Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities. Open Access Biogeosciences (BG), 8 . pp. 771-777. DOI 10.5194/bg-8-771-2011 <https://doi.org/10.5194/bg-8-771-2011>. doi:10.5194/bg-8-771-2011 info:eu-repo/semantics/openAccess Article PeerReviewed info:eu-repo/semantics/article 2011 ftoceanrep https://doi.org/10.5194/bg-8-771-2011 2023-04-07T14:58:19Z Ocean acidification and associated shifts in carbonate chemistry speciation induced by increasing levels of atmospheric carbon dioxide (CO2) have the potential to impact marine biota in various ways. The process of biogenic calcification, for instance, is usually shown to be negatively affected. In coccolithophores, an important group of pelagic calcifiers, changes in cellular calcification rates in response to changing ocean carbonate chemistry appear to differ among species. By applying a wider CO2 range we show that a species previously reported insensitive to seawater acidification, Coccolithus braarudii, responds both in terms of calcification and photosynthesis, although at higher levels of CO2. Thus, observed differences between species seem to be related to individual sensitivities while the underlying mechanisms could be the same. On this basis we develop a conceptual model of coccolithophorid calcification and photosynthesis in response to CO2-induced changes in seawater carbonate chemistry speciation. Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Biogeosciences 8 3 771 777 |
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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 |
Ocean acidification and associated shifts in carbonate chemistry speciation induced by increasing levels of atmospheric carbon dioxide (CO2) have the potential to impact marine biota in various ways. The process of biogenic calcification, for instance, is usually shown to be negatively affected. In coccolithophores, an important group of pelagic calcifiers, changes in cellular calcification rates in response to changing ocean carbonate chemistry appear to differ among species. By applying a wider CO2 range we show that a species previously reported insensitive to seawater acidification, Coccolithus braarudii, responds both in terms of calcification and photosynthesis, although at higher levels of CO2. Thus, observed differences between species seem to be related to individual sensitivities while the underlying mechanisms could be the same. On this basis we develop a conceptual model of coccolithophorid calcification and photosynthesis in response to CO2-induced changes in seawater carbonate chemistry speciation. |
format |
Article in Journal/Newspaper |
author |
Krug, Sebastian Schulz, Kai Riebesell, Ulf |
spellingShingle |
Krug, Sebastian Schulz, Kai Riebesell, Ulf Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
author_facet |
Krug, Sebastian Schulz, Kai Riebesell, Ulf |
author_sort |
Krug, Sebastian |
title |
Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
title_short |
Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
title_full |
Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
title_fullStr |
Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
title_full_unstemmed |
Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities |
title_sort |
effects of changes in carbonate chemistry speciation on coccolithus braarudii: a discussion of coccolithophorid sensitivities |
publisher |
Copernicus Publications (EGU) |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/10309/ https://oceanrep.geomar.de/id/eprint/10309/1/bg-8-771-2011.pdf https://doi.org/10.5194/bg-8-771-2011 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/10309/1/bg-8-771-2011.pdf Krug, S., Schulz, K. and Riebesell, U. (2011) Effects of changes in carbonate chemistry speciation on Coccolithus braarudii: a discussion of coccolithophorid sensitivities. Open Access Biogeosciences (BG), 8 . pp. 771-777. DOI 10.5194/bg-8-771-2011 <https://doi.org/10.5194/bg-8-771-2011>. doi:10.5194/bg-8-771-2011 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-8-771-2011 |
container_title |
Biogeosciences |
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8 |
container_issue |
3 |
container_start_page |
771 |
op_container_end_page |
777 |
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1766158073982877696 |