Seawater carbonate chemistry and data of element incorporation in hyaline and porcelaneous foraminifera in laboratory experiment, supplement to: van Dijk, Inge; de Nooijer, Lennart Jan; Reichart, Gert-Jan (2017): Trends in element incorporation in hyaline and porcelaneous foraminifera as a function of pCO2. Biogeosciences, 14(3), 497-510

• Main Authors: van Dijk, Inge, de Nooijer, Lennart Jan, Reichart, Gert-Jan
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2017
• Subjects: Amphistegina gibbosa; Archaias angulatus; Asterigerina carinata; Benthos; Bottles or small containers/Aquaria <20 L; Chromista; Coast and continental shelf; Foraminifera; Heterostegina antillarum; Heterotrophic prokaryotes; Laboratory experiment; Laevipeneroplis bradyi; North Atlantic; Other metabolic rates; Peneroplis pertusus; Planorbulina acervalis; Single species; Sorites marginalis; Temperate; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Partial pressure of carbon dioxide water at sea surface temperature wet air; Magnesium/Calcium ratio; Magnesium/Calcium ratio, standard error; Magnesium, partition coefficient; Sodium/Calcium ratio; Sodium/Calcium ratio, standard error; Sodium, partition coefficient; Strontium/Calcium ratio; Strontium/Calcium ratio, standard error; Strontium, partition coefficient; Zinc/Calcium ratio; Zinc/Calcium ratio, standard error; Zinc, partition coefficient; Barium/Calcium ratio; Barium/Calcium ratio, standard error; Barium, partition coefficient; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; pH; Calcite saturation state; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Aragonite saturation state; Experiment; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.875147; https://doi.pangaea.de/10.1594/PANGAEA.875147

In this study we analyzed the impact of seawater carbonate chemistry on the incorporation of elements in both hyaline and porcelaneous larger benthic foraminifera. We observed a higher incorporation of Zn and Ba when pCO2 increases from 350 to 1200?ppm. Modeling the activity of free ions as a function of pCO2 shows that speciation of some elements (like Zn and Ba) is mainly influenced by the formation of carbonate complexes in seawater. Hence, differences in foraminiferal uptake of these might be related primarily by the speciation of these elements in seawater. We investigated differences in trends in element incorporation between hyaline (perforate) and porcelaneous (imperforate) foraminifera in order to unravel processes involved in element uptake and subsequent foraminiferal calcification. In hyaline foraminifera we observed a correlation of element incorporation of different elements between species, reflected by a general higher incorporation of elements in species with higher Mg content. Between porcelaneous species, inter-element differences are much smaller. Besides these contrasting trends in element incorporation, however, similar trends are observed in element incorporation as a function of seawater carbonate chemistry in both hyaline and porcelaneous species. This suggests similar mechanisms responsible for the transportation of ions to the site of calcification for these groups of foraminifera, although the contribution of these processes might differ across species. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 2017-05-12.