Seawater carbonate chemistry and impact of different carbonate system parameters on benthic foraminifera from controlled growth experiments ...

• Main Authors: Mojtahid, Meryem, Depuydt, Pauline, Mouret, Aurélia, Le Houedec, Sandrine, Fiorini, Sarah, Chollet, S, Massol, F, Dohou, F, Filipsson, Helena L, Boer, Wim, Reichart, Gert-Jan, Barras, Christine
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Ammonia confertitesta; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Bulimina marginata; Cassidulina laevigata; Chromista; Coast and continental shelf; Foraminifera; Heterotrophic prokaryotes; Laboratory experiment; North Atlantic; Pelagos; Single species; Temperate; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Magnesium/Calcium ratio; Zinc/Calcium ratio; Strontium/Calcium ratio; Barium/Calcium ratio; Specimen number; Type of chamber; Identification; Replicate; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Quality flag, profile; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; pH; pH, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Fugacity of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide in seawater, standard deviation; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.957794; https://doi.pangaea.de/10.1594/PANGAEA.957794

Insights into past marine carbon cycling and water mass properties can be obtained by means of geochemical proxies calibrated through controlled laboratory experiments with accurate seawater carbonate system (C-system) manipulations. Here, we explored the use of strontium/calcium ratio (Sr/Ca) of the calcite shells of benthic foraminifera as a potential seawater C-system proxy through a controlled growth experiment with two deep-sea species (Bulimina marginata and Cassidulina laevigata) and one intertidal species (Ammonia T6). To this aim, we used two experimental set-ups to decouple as much as possible the individual components of the carbonate system, i.e., changing pH at constant dissolved inorganic carbon (DIC) and changing DIC at constant pH. Four climatic chambers were used with different controlled concentrations of atmospheric pCO2 (180 ppm, 410 ppm, 1000 ppm, 1500 ppm). Our results demonstrated that pH did not influence the survival and growth of the three species. However, low DIC conditions (879 ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2023-04-20. ...