Articles | Volume 12, issue 7
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, G. Langer, S. Thoms, G. Nehrke, G.-J. Reichart, L. J. de Nooijer, and J. Bijma


Interactive discussion

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Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
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
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.
Final-revised paper