Salinity effects on the Mg/Ca and Sr/Ca in starfish skeletons and the echinoderm relevance for paleoenvironmental reconstructions
Salinity effects on the Mg/Ca and Sr/Ca in starfish skeletons and the echinoderm relevance for paleoenvironmental reconstructions
复制标题
盐度对海星骨骼中 Mg/Ca 和 Sr/Ca 的影响以及棘皮动物与古环境重建的相关性
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
P. Dubois
中科院分区：
文献类型：
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作者：
C. Borremans;J. Hermans;S. Baillon;L. André;P. Dubois
保存完好的棘皮动物化石的骨骼Mg/Ca比值已被用于重建海水中的Mg/Ca比值，并考虑到已知的温度对该比值的影响。本研究探讨了盐度和生长速率对实验条件下生长的海星方解石骨架中Mg/Ca和Sr/Ca比值的影响。这两个比率都不相关的增长率：相反，都是正相关的盐度。这种效应导致海水中重建的Mg/Ca比的误差可能达到46%。一个有趣的骨骼Sr/Ca比和温度之间的反比关系被记录。盐度的影响可能是由于生理调节过程。
Skeletal Mg/Ca ratios of well-preserved fossil echinoderms have been used to reconstruct past Mg/Ca ratio in seawater up to the Phanerozoic, taking into account the known temperature effect on this ratio. This study investigates the effects of salinity and growth rate on Mg/Ca and Sr/Ca ratios in starfish calcite skeletons grown in experimental conditions. Both ratios are not related to growth rate: on the contrary, both are positively related to salinity. This effect induces an error on the reconstructed Mg/Ca ratio in seawater that may reach 46%. An intriguing inverse relation between skeletal Sr/Ca ratio and temperature was recorded. The salinity effects are presumably due to physiological regulation processes.
影响因子：
3
作者：
Robach, J. S.;Stock, S. R.;Veis, A.
通讯作者：
Veis, A.