Seawater carbonate chemistry and calcification of coral Acropora hyacinthus ...

• Main Authors: Comeau, Steeve, Edmunds, Peter J, Spindel, N B, Carpenter, Robert C
• Format: Dataset
• Language: English
• Published: PANGAEA 2014
• Subjects: Acropora hyacinthus; Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Other; Single species; South Pacific; Tropical; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Origin; Treatment; Number; Calcification rate of calcium carbonate; Salinity; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Alkalinity, total; Alkalinity, total, standard error; pH; pH, standard error; Aragonite saturation state; Aragonite saturation state, standard error; Temperature, water; Temperature, water, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Calcite saturation state; Experiment; 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.955745; https://doi.pangaea.de/10.1594/PANGAEA.955745

To investigate the effect of diel variation in pCO2 on coral calcification, branches of Acropora hyacinthus were collected in 2 habitats (upstream and downstream in a unidirectional flow) in a shallow back reef in Moorea, French Polynesia, where different diel amplitudes of pCO2 oscillation were expected. Corals were maintained for 6 wk under different pCO2 regimes (constant versus oscillatory), each delivered in 3 configurations: constant conditions of 400 µatm, 700 µatm, and 1000 µatm pCO2, or oscillatory conditions varying daily from 280 to 550 µatm, 550 to 1000 µatm, or 400 to 2000 µatm, with minima and maxima during the day and night, respectively. Calcification rates in all treatments tended to increase over time, and the interaction between Time and pCO2 regime (i.e. constant versus oscillating) was significant (or close to significant) for upstream corals due to higher calcification in oscillatory pCO2. A significant pCO2 regime effect was detected in the highest pCO2 for downstream corals, with ... : 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 2023-02-16. ...