Seawater carbonate chemistry and foraminiferal calcification ...

• Main Authors: Henehan, Michael J, Evans, David, Shankle, Madison, Burke, Janet, Foster, Gavin L, Anagnostou, Eleni, Chalk, Thomas B, Stewart, Joseph A, Alt, Claudia H S, Hull, Pincelli M, Durrant, Joseph
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Benthos; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Chromista; Coast and continental shelf; Foraminifera; Globigerinoides ruber; Growth/Morphology; Heterotrophic prokaryotes; Laboratory experiment; Red Sea; Single species; Temperate; Type; Species; Experiment; Temperature, water; Magnesium/Calcium ratio; pH; pH, standard error; Carbon, inorganic, dissolved; Carbonate ion; Calcification intensity; Calcification intensity, standard error; Area; Chamber number; Salinity; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Aragonite saturation state; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.923860; https://doi.pangaea.de/10.1594/PANGAEA.923860

The response of the marine carbon cycle to changes in atmospheric CO2 concentrations will be determined, in part, by the relative response of calcifying and non-calcifying organisms to global change. Planktonic foraminifera are responsible for a quarter or more of global carbonate production, therefore understanding the sensitivity of calcification in these organisms to environmental change is critical. Despite this, there remains little consensus as to whether, or to what extent, chemical and physical factors affect foraminiferal calcification. To address this, we directly test the effect of multiple controls on calcification in culture experiments and core-top measurements of Globigerinoides ruber. We find that two factors, body size and the carbonate system, strongly influence calcification intensity in life, but that exposure to corrosive bottom waters can overprint this signal post mortem. Using a simple model for the addition of calcite through ontogeny, we show that variable body size between and ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2019) 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 2020-10-14. ...