Articles | Volume 15, issue 22
https://doi.org/10.5194/bg-15-6761-2018
https://doi.org/10.5194/bg-15-6761-2018
Research article
 | 
14 Nov 2018
Research article |  | 14 Nov 2018

The effect of salinity on the biogeochemistry of the coccolithophores with implications for coccolith-based isotopic proxies

Michaël Hermoso and Marceau Lecasble

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Changes in growth parameters of cultured coccolithophores and isotopic composition of coccolith calcite with salinity M. Hermoso https://doi.pangaea.de/10.1594/PANGAEA.895777

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Short summary
This work examines the effect of salinity changes on the biogeochemistry of the coccolithophores with a palaeoproxy perspective. Although substantial changes in growth rate are observed between cells grown under various salinities, these physiological changes have no significant impact on the oxygen isotope composition of their biominerals. Thus, established coccolith δ18O / temperature calibrations are not complicated by salinity. By contrast, it does influence coccolith δ13C values.
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