Abstract. The Mg/Ca and Sr/Ca ratios of marine shells have been widely used in environmental paleoreconstructions to understand past conditions. Temperature calibrations ostracod are known be species-specific but only available for a few species, despite the large number species. Here, we develop temperature two shallow ostracods, Sinocytheridea impressa Neomonoceratina delicata, using modern s...

[1] The recent development of foraminiferal Mg/Ca as a paleotemperature proxy has enabled the extraction of global ice volume and local salinity from the more traditional paleotemperature proxy dO. The benthic foraminiferal genus Cibicidoides is widely used in paleoceanographic reconstructions because of its epifaunal habitat and cosmopolitan distribution, and it has received early attention in...

A near constancy of the extracellular Ca and Mg concentration is required for numerous physiologic functions at the organ, tissue, and cellular levels. This suggests that minor changes in the extracellular concentration of these divalents must be detected to allow the appropriate correction by the homeostatic systems. The maintenance of the Ca and Mg balance is controlled by the concerted actio...

Interand intra-specimen variability masks reliable temperature control on shell Mg/Ca ratios in laboratory and field cultured Mytilus edulis and Pecten maximus (bivalvia) P. S. Freitas, L. J. Clarke, H. A. Kennedy, and C. A. Richardson School of Ocean Sciences, College of Natural Sciences, Bangor University, UK Departamento de Geologia Marinha, INETI, Portugal Received: : 29 November 2007 – Acc...