Size-dependent response of foraminiferal calcification to seawater carbonate chemistry
The response of the marine carbon cycle to changes in atmospheric CO<sub>2</sub> concentrations will be determined, in part, by the relative response of calcifying and non-calcifying organisms to global change. Planktonic foraminifera are responsible for a quarter or more of global ca...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2017-07-01
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| Series: | Biogeosciences |
| Online Access: | https://www.biogeosciences.net/14/3287/2017/bg-14-3287-2017.pdf |
| _version_ | 1818021836570492928 |
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| author | M. J. Henehan D. Evans D. Evans M. Shankle J. E. Burke G. L. Foster E. Anagnostou T. B. Chalk J. A. Stewart J. A. Stewart C. H. S. Alt C. H. S. Alt J. Durrant P. M. Hull |
| author_facet | M. J. Henehan D. Evans D. Evans M. Shankle J. E. Burke G. L. Foster E. Anagnostou T. B. Chalk J. A. Stewart J. A. Stewart C. H. S. Alt C. H. S. Alt J. Durrant P. M. Hull |
| author_sort | M. J. Henehan |
| collection | DOAJ |
| description | The response of the marine carbon cycle to changes in atmospheric CO<sub>2</sub>
concentrations will be determined, in part, by the relative response of
calcifying and non-calcifying organisms to global change. Planktonic
foraminifera are responsible for a quarter or more of global carbonate
production, therefore understanding the sensitivity of calcification in these
organisms to environmental change is critical. Despite this, there remains
little consensus as to whether, or to what extent, chemical and physical
factors affect foraminiferal calcification. To address this, we directly test
the effect of multiple controls on calcification in culture experiments and
core-top measurements of <i>Globigerinoides ruber</i>. We find that two
factors, body size and the carbonate system, strongly influence calcification
intensity in life, but that exposure to corrosive bottom waters can overprint
this signal post mortem. Using a simple model for the addition of calcite
through ontogeny, we show that variable body size between and within datasets
could complicate studies that examine environmental controls on foraminiferal
shell weight. In addition, we suggest that size could ultimately play a role
in determining whether calcification will increase or decrease with
acidification. Our models highlight that knowledge of the specific
morphological and physiological mechanisms driving ontogenetic change in
calcification in different species will be critical in predicting the
response of foraminiferal calcification to future change in atmospheric
<i>p</i>CO<sub>2</sub>. |
| first_indexed | 2024-04-14T08:23:27Z |
| format | Article |
| id | doaj.art-a20a4267edf648c098fd880eb2ecaf01 |
| institution | Directory Open Access Journal |
| issn | 1726-4170 1726-4189 |
| language | English |
| last_indexed | 2024-04-14T08:23:27Z |
| publishDate | 2017-07-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Biogeosciences |
| spelling | doaj.art-a20a4267edf648c098fd880eb2ecaf012022-12-22T02:04:09ZengCopernicus PublicationsBiogeosciences1726-41701726-41892017-07-01143287330810.5194/bg-14-3287-2017Size-dependent response of foraminiferal calcification to seawater carbonate chemistryM. J. Henehan0D. Evans1D. Evans2M. Shankle3J. E. Burke4G. L. Foster5E. Anagnostou6T. B. Chalk7J. A. Stewart8J. A. Stewart9C. H. S. Alt10C. H. S. Alt11J. Durrant12P. M. Hull13Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USADepartment of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USASchool of Earth and Environmental Sciences, University of St Andrews, Irvine Building, North Street, St Andrews, Fife, KY16 9AL, UKDepartment of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USADepartment of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USAOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKNational Institute of Standards and Technology, Hollings Marine Laboratory, 331 Ft. Johnson Road Charleston, SC 29412, USAOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKDepartment of Biology, College of Charleston, Charleston, SC 29424, USAOcean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Southampton, SO14 3ZH, UKDepartment of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USAThe response of the marine carbon cycle to changes in atmospheric CO<sub>2</sub> concentrations will be determined, in part, by the relative response of calcifying and non-calcifying organisms to global change. Planktonic foraminifera are responsible for a quarter or more of global carbonate production, therefore understanding the sensitivity of calcification in these organisms to environmental change is critical. Despite this, there remains little consensus as to whether, or to what extent, chemical and physical factors affect foraminiferal calcification. To address this, we directly test the effect of multiple controls on calcification in culture experiments and core-top measurements of <i>Globigerinoides ruber</i>. We find that two factors, body size and the carbonate system, strongly influence calcification intensity in life, but that exposure to corrosive bottom waters can overprint this signal post mortem. Using a simple model for the addition of calcite through ontogeny, we show that variable body size between and within datasets could complicate studies that examine environmental controls on foraminiferal shell weight. In addition, we suggest that size could ultimately play a role in determining whether calcification will increase or decrease with acidification. Our models highlight that knowledge of the specific morphological and physiological mechanisms driving ontogenetic change in calcification in different species will be critical in predicting the response of foraminiferal calcification to future change in atmospheric <i>p</i>CO<sub>2</sub>.https://www.biogeosciences.net/14/3287/2017/bg-14-3287-2017.pdf |
| spellingShingle | M. J. Henehan D. Evans D. Evans M. Shankle J. E. Burke G. L. Foster E. Anagnostou T. B. Chalk J. A. Stewart J. A. Stewart C. H. S. Alt C. H. S. Alt J. Durrant P. M. Hull Size-dependent response of foraminiferal calcification to seawater carbonate chemistry Biogeosciences |
| title | Size-dependent response of foraminiferal calcification to seawater carbonate chemistry |
| title_full | Size-dependent response of foraminiferal calcification to seawater carbonate chemistry |
| title_fullStr | Size-dependent response of foraminiferal calcification to seawater carbonate chemistry |
| title_full_unstemmed | Size-dependent response of foraminiferal calcification to seawater carbonate chemistry |
| title_short | Size-dependent response of foraminiferal calcification to seawater carbonate chemistry |
| title_sort | size dependent response of foraminiferal calcification to seawater carbonate chemistry |
| url | https://www.biogeosciences.net/14/3287/2017/bg-14-3287-2017.pdf |
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