Journal cover Journal topic
Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 12, issue 7
Biogeosciences, 12, 2153–2162, 2015
https://doi.org/10.5194/bg-12-2153-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 12, 2153–2162, 2015
https://doi.org/10.5194/bg-12-2153-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 10 Apr 2015

Research article | 10 Apr 2015

Impact of seawater [Ca2+] on the calcification and calciteMg / Ca of Amphistegina lessonii

A. Mewes et al.
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AR by Anna Wenzel on behalf of the Authors (17 Mar 2015)  Author's response    Manuscript
ED: Publish as is (18 Mar 2015) by Hiroshi Kitazato
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Short summary
A culture study with the benthic foraminifer Amphistegina lessonii was conducted at varying seawater [Ca2+] and constant [Mg2+]. Results showed optimum growth rates and test thickness at ambient seawater Mg/Ca and a calcite Mg/Ca which is controlled by the relative seawater ratio. Results support the conceptual biomineralization model by Nehrke et al. (2013); however, our refined flux-based model suggests transmembrane transport fractionation that is slightly weaker than expected.
A culture study with the benthic foraminifer Amphistegina lessonii was conducted at varying...
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