A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework
Highlights • Calcification rates are stimulated by CO2 and HCO3− and inhibited by H+. • This novel substrate–inhibitor concept is tested with experimental data. • The concept enables us to reconcile conflicting results among laboratory studies. • We illustrate how this physiological concept can be i...
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Online Access: | https://oceanrep.geomar.de/id/eprint/28783/ https://oceanrep.geomar.de/id/eprint/28783/1/Bach%20et.al.pdf https://doi.org/10.1016/j.pocean.2015.04.012 |
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ftoceanrep:oai:oceanrep.geomar.de:28783 2023-05-15T17:50:52+02:00 A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework Bach, Lennart T. Riebesell, Ulf Gutowska, Magdalena A. Federwisch, Luisa Schulz, Kai G. 2015-06 text https://oceanrep.geomar.de/id/eprint/28783/ https://oceanrep.geomar.de/id/eprint/28783/1/Bach%20et.al.pdf https://doi.org/10.1016/j.pocean.2015.04.012 en eng Elsevier https://oceanrep.geomar.de/id/eprint/28783/1/Bach%20et.al.pdf Bach, L. T. , Riebesell, U. , Gutowska, M. A., Federwisch, L. and Schulz, K. G. (2015) A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework. Open Access Progress in Oceanography, 135 . pp. 125-138. DOI 10.1016/j.pocean.2015.04.012 <https://doi.org/10.1016/j.pocean.2015.04.012>. doi:10.1016/j.pocean.2015.04.012 info:eu-repo/semantics/openAccess Article PeerReviewed 2015 ftoceanrep https://doi.org/10.1016/j.pocean.2015.04.012 2023-04-07T15:19:21Z Highlights • Calcification rates are stimulated by CO2 and HCO3− and inhibited by H+. • This novel substrate–inhibitor concept is tested with experimental data. • The concept enables us to reconcile conflicting results among laboratory studies. • We illustrate how this physiological concept can be included in ecological theory. • We apply the concept to discuss coccolithophore dispersal in the oceans. Abstract Coccolithophores are a group of unicellular phytoplankton species whose ability to calcify has a profound influence on biogeochemical element cycling. Calcification rates are controlled by a large variety of biotic and abiotic factors. Among these factors, carbonate chemistry has gained considerable attention during the last years as coccolithophores have been identified to be particularly sensitive to ocean acidification. Despite intense research in this area, a general concept harmonizing the numerous and sometimes (seemingly) contradictory responses of coccolithophores to changing carbonate chemistry is still lacking to date. Here, we present the “substrate–inhibitor concept” which describes the dependence of calcification rates on carbonate chemistry speciation. It is based on observations that calcification rate scales positively with bicarbonate (HCO3−), the primary substrate for calcification, and carbon dioxide (CO2), which can limit cell growth, whereas it is inhibited by protons (H+). This concept was implemented in a model equation, tested against experimental data, and then applied to understand and reconcile the diverging responses of coccolithophorid calcification rates to ocean acidification obtained in culture experiments. Furthermore, we (i) discuss how other important calcification-influencing factors (e.g. temperature and light) could be implemented in our concept and (ii) embed it in Hutchinson’s niche theory, thereby providing a framework for how carbonate chemistry-induced changes in calcification rates could be linked with changing coccolithophore abundance in the oceans. Our results ... Article in Journal/Newspaper Ocean acidification OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Progress in Oceanography 135 125 138 |
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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 |
Highlights • Calcification rates are stimulated by CO2 and HCO3− and inhibited by H+. • This novel substrate–inhibitor concept is tested with experimental data. • The concept enables us to reconcile conflicting results among laboratory studies. • We illustrate how this physiological concept can be included in ecological theory. • We apply the concept to discuss coccolithophore dispersal in the oceans. Abstract Coccolithophores are a group of unicellular phytoplankton species whose ability to calcify has a profound influence on biogeochemical element cycling. Calcification rates are controlled by a large variety of biotic and abiotic factors. Among these factors, carbonate chemistry has gained considerable attention during the last years as coccolithophores have been identified to be particularly sensitive to ocean acidification. Despite intense research in this area, a general concept harmonizing the numerous and sometimes (seemingly) contradictory responses of coccolithophores to changing carbonate chemistry is still lacking to date. Here, we present the “substrate–inhibitor concept” which describes the dependence of calcification rates on carbonate chemistry speciation. It is based on observations that calcification rate scales positively with bicarbonate (HCO3−), the primary substrate for calcification, and carbon dioxide (CO2), which can limit cell growth, whereas it is inhibited by protons (H+). This concept was implemented in a model equation, tested against experimental data, and then applied to understand and reconcile the diverging responses of coccolithophorid calcification rates to ocean acidification obtained in culture experiments. Furthermore, we (i) discuss how other important calcification-influencing factors (e.g. temperature and light) could be implemented in our concept and (ii) embed it in Hutchinson’s niche theory, thereby providing a framework for how carbonate chemistry-induced changes in calcification rates could be linked with changing coccolithophore abundance in the oceans. Our results ... |
format |
Article in Journal/Newspaper |
author |
Bach, Lennart T. Riebesell, Ulf Gutowska, Magdalena A. Federwisch, Luisa Schulz, Kai G. |
spellingShingle |
Bach, Lennart T. Riebesell, Ulf Gutowska, Magdalena A. Federwisch, Luisa Schulz, Kai G. A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
author_facet |
Bach, Lennart T. Riebesell, Ulf Gutowska, Magdalena A. Federwisch, Luisa Schulz, Kai G. |
author_sort |
Bach, Lennart T. |
title |
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
title_short |
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
title_full |
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
title_fullStr |
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
title_full_unstemmed |
A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
title_sort |
unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework |
publisher |
Elsevier |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/28783/ https://oceanrep.geomar.de/id/eprint/28783/1/Bach%20et.al.pdf https://doi.org/10.1016/j.pocean.2015.04.012 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://oceanrep.geomar.de/id/eprint/28783/1/Bach%20et.al.pdf Bach, L. T. , Riebesell, U. , Gutowska, M. A., Federwisch, L. and Schulz, K. G. (2015) A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework. Open Access Progress in Oceanography, 135 . pp. 125-138. DOI 10.1016/j.pocean.2015.04.012 <https://doi.org/10.1016/j.pocean.2015.04.012>. doi:10.1016/j.pocean.2015.04.012 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.pocean.2015.04.012 |
container_title |
Progress in Oceanography |
container_volume |
135 |
container_start_page |
125 |
op_container_end_page |
138 |
_version_ |
1766157791255330816 |