Seawater carbonate chemistry, calcification and dissolution response, and skeletal mineralogy of benthic orhanisms during experiments, 2011 ...

• Main Author: Ries, Justin B
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Animalia; Arbacia punctulata; Argopecten irradians; Arthropoda; Benthic animals; Benthos; Calcification/Dissolution; Callinectes sapidus; Chlorophyta; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Crassostrea virginica; Crepidula fornicata; Echinodermata; Eucidaris tribuloides; Halimeda incrassata; Homarus americanus; Hydroides crucigera; Laboratory experiment; Littorina littorea; Macroalgae; Mercenaria mercenaria; Mollusca; Mya arenaria; Mytilus edulis; Neogoniolithon sp.; North Atlantic; Oculina arbuscula; Penaeus plebejus; Plantae; Rhodophyta; Single species; Strombus alatus; Temperate; Urosalpinx cinerea; Identification; Partial pressure of carbon dioxide water at sea surface temperature wet air; Carbon dioxide, partial pressure, standard deviation; Salinity; Salinity, standard deviation; Temperature, water; Temperature, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; pH; pH, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Aragonite saturation state; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.770088; https://doi.pangaea.de/10.1594/PANGAEA.770088

Increasing atmospheric pCO2 reduces the saturation state of seawater with respect to the aragonite, high-Mg calcite (Mg/Ca > 0.04), and low-Mg calcite (Mg/Ca < 0.04) minerals from which marine calcifiers build their shells and skeletons. Notably, these polymorphs of CaCO3 have different solubilities in seawater: aragonite is more soluble than pure calcite, and the solubility of calcite increases with its Mg-content. Although much recent progress has been made investigating the effects of CO2-induced ocean acidification on rates of biological calcification, considerable uncertainties remain regarding impacts on shell/skeletal polymorph mineralogy. To investigate this subject, eighteen species of marine calcifiers were reared for 60-days in seawater bubbled with air-CO2 mixtures of 409 ± 6, 606 ± 7, 903 ± 12, and 2856 ± 54 ppm pCO2, yielding aragonite saturation states of 2.5 ± 0.4, 2.0 ± 0.4, 1.5 ± 0.3, and 0.7 ± 0.2. Calcite/aragonite ratios within bimineralic calcifiers increased with increasing pCO2, ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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). ...