Seawater carbonate chemistry and changes in the sources of carbon for calcification of Caribbean Coral ...

• Main Authors: Eagle, Robert A, Guillermic, Maxence, De Corte, Ilian, Caraveo, Blanca Alvarez, Bove, Colleen B, Misra, Sambuddha, Cameron, Louise P, Castillo, Karl D, Ries, Justin B
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Acid-base regulation; Animalia; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; North Atlantic; Porites astreoides; Pseudodiploria strigosa; Siderastrea siderea; Single species; Temperature; Tropical; Undaria tenuifolia; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Treatment temperature; Treatment partial pressure of carbon dioxide; δ11B; δ11B, standard deviation; Replicates; Boron/Calcium ratio; Boron/Calcium ratio, standard deviation; δ13C; δ13C, standard deviation; Calcification rate; Calcification rate, standard deviation; Calcifying fluid, pH; Calcifying fluid, pH, standard deviation; Calcifying fluid, dissolved inorganic carbon; Calcifying fluid, dissolved inorganic carbon, standard deviation; Calcifying fluid, carbonate ion; Calcifying fluid, carbonate ion, standard deviation; Calcifying fluid, calcite saturation state; Calcifying fluid, calcite saturation state, standard deviation; Temperature, water; Temperature, water, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.952269; https://doi.pangaea.de/10.1594/PANGAEA.952269

It is thought that the active physiological regulation of the chemistry of a parent fluid is an important process in the biomineralization of scleractinian corals. Biological regulation of calcification fluid pH (pHCF) and other carbonate chemistry parameters ([CO32−]CF, DICCF, and ΩCF) may be challenged by CO2 driven acidification and temperature. Here, we examine the combined influence of changing temperature and CO2 on calcifying fluid regulation in four common Caribbean coral species—Porites astreoides, Pseudodiploria strigosa, Undaria tenuifolia, and Siderastrea siderea. We utilize skeletal boron geochemistry (B/Ca and δ11B) to probe the pHCF, [CO32−]CF, and DICCF regulation in these corals, and δ13C to track changes in the sources of carbon for calcification. Temperature was found to not influence pHCF regulation across all pCO2 treatments in these corals, in contrast to recent studies on Indo-Pacific pocilloporid corals. We find that [DIC]CF is significantly lower at higher temperatures in all the ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2022-12-12. ...