The response of ostracod shell chemistry to seasonal change in a Mediterranean freshwater spring environment

摘要: We established the relationships between water chemistry changes in a pool fed by permanent spring and seasonal variations trace-element contents (Sr & Mg) shells of ostracod species Herpetocypris intermedia, based on monthly collections samples. The investigated (Maiques, Valencia, Spain) was dominated calcium bicarbonate, showed marked variation alkalinity, Ca2+ content, Sr/Ca Mg/Ca ratios. Although variability relatively low (similar to 10% relative standard deviation over entire period), trace-clement contents: tracked change Maiques pool. Moreover, due rapid renewal H. intermedia population, this is able record its evolution at time scale. Our results also that, system, ratios increased with decrease salinity. To our knowledge, first geochemical study ostracods dwelling environments. may be applied paleohydrological reconstruction using preserved sediments deposited around springs (i.e., travertine tufa deposits).