Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera
The effect of carbonate ion concentration ([CO 3 2− ]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer . Experiments on G. sacculifer were conducted under two irradiance levels (35 and 335 μm...
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ftdoajarticles:oai:doaj.org/article:4caada92fa9546e6a061c6dd8983d52a 2023-05-15T17:51:09+02:00 Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera F. Lombard R. E. da Rocha J. Bijma J.-P. Gattuso 2010-01-01T00:00:00Z https://doi.org/10.5194/bg-7-247-2010 https://doaj.org/article/4caada92fa9546e6a061c6dd8983d52a EN eng Copernicus Publications http://www.biogeosciences.net/7/247/2010/bg-7-247-2010.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-7-247-2010 https://doaj.org/article/4caada92fa9546e6a061c6dd8983d52a Biogeosciences, Vol 7, Iss 1, Pp 247-255 (2010) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2010 ftdoajarticles https://doi.org/10.5194/bg-7-247-2010 2022-12-31T15:00:16Z The effect of carbonate ion concentration ([CO 3 2− ]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer . Experiments on G. sacculifer were conducted under two irradiance levels (35 and 335 μmol photons m −2 s −1 ). Calcification was ca. 30% lower under low light than under high light, irrespective of the [CO 3 2− ]. Both O. universa and G. sacculifer exhibited reduced final shell weight and calcification rate under low [CO 3 2− ]. For the [CO 3 2− ] expected at the end of the century, the calcification rates of these two species are projected to be 6 to 13% lower than the present conditions, while the final shell weights are reduced by 20 to 27% for O. universa and by 4 to 6% for G. sacculifer . These results indicate that ocean acidification would impact on calcite production by foraminifera and may decrease the calcite flux contribution from these organisms. Article in Journal/Newspaper Ocean acidification Planktonic foraminifera Directory of Open Access Journals: DOAJ Articles Biogeosciences 7 1 247 255 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 F. Lombard R. E. da Rocha J. Bijma J.-P. Gattuso Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
The effect of carbonate ion concentration ([CO 3 2− ]) on calcification rates estimated from shell size and weight was investigated in the planktonic foraminifera Orbulina universa and Globigerinoides sacculifer . Experiments on G. sacculifer were conducted under two irradiance levels (35 and 335 μmol photons m −2 s −1 ). Calcification was ca. 30% lower under low light than under high light, irrespective of the [CO 3 2− ]. Both O. universa and G. sacculifer exhibited reduced final shell weight and calcification rate under low [CO 3 2− ]. For the [CO 3 2− ] expected at the end of the century, the calcification rates of these two species are projected to be 6 to 13% lower than the present conditions, while the final shell weights are reduced by 20 to 27% for O. universa and by 4 to 6% for G. sacculifer . These results indicate that ocean acidification would impact on calcite production by foraminifera and may decrease the calcite flux contribution from these organisms. |
format |
Article in Journal/Newspaper |
author |
F. Lombard R. E. da Rocha J. Bijma J.-P. Gattuso |
author_facet |
F. Lombard R. E. da Rocha J. Bijma J.-P. Gattuso |
author_sort |
F. Lombard |
title |
Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
title_short |
Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
title_full |
Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
title_fullStr |
Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
title_full_unstemmed |
Effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
title_sort |
effect of carbonate ion concentration and irradiance on calcification in planktonic foraminifera |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/bg-7-247-2010 https://doaj.org/article/4caada92fa9546e6a061c6dd8983d52a |
genre |
Ocean acidification Planktonic foraminifera |
genre_facet |
Ocean acidification Planktonic foraminifera |
op_source |
Biogeosciences, Vol 7, Iss 1, Pp 247-255 (2010) |
op_relation |
http://www.biogeosciences.net/7/247/2010/bg-7-247-2010.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-7-247-2010 https://doaj.org/article/4caada92fa9546e6a061c6dd8983d52a |
op_doi |
https://doi.org/10.5194/bg-7-247-2010 |
container_title |
Biogeosciences |
container_volume |
7 |
container_issue |
1 |
container_start_page |
247 |
op_container_end_page |
255 |
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1766158210560950272 |