Seawater carbonate chemistry and calcification rate of the corals Oculina patagonica and Cladocora caespitosa in a laboratory experiment ...

• Main Authors: Movilla, Juancho, Calvo, Eva, Pelejero, Carles, Coma, Rafel, Serrano, Eduard, Fernández-Vallejo, Pilar, Ribes, Marta
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Animalia; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Calcification/Dissolution; Cladocora caespitosa; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Mediterranean Sea; Oculina patagonica; Single species; Temperate; Identification; Species; Treatment; Replicate; Incubation duration; Calcification rate of calcium carbonate; Difference; Cell density per polyp; Cell density; Diameter; Salinity; Salinity, standard deviation; Temperature, water; Temperature, standard deviation; Alkalinity, total; pH; pH, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Carbonate system computation flag; Fugacity of carbon dioxide water at sea surface temperature wet air; Calcite saturation state; Experiment; Buoyant weighing technique according to Davies 1989; Calculated; Potentiometric titration; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.823462; https://doi.pangaea.de/10.1594/PANGAEA.823462

In recent years, some of the ramifications of the ocean acidification problematic derived from the anthropogenic rising of atmospheric CO2 have been widely studied. In particular, the potential effects of a lowering pH on tropical coral reefs have received special attention. However, only a few studies have focused on testing the effects of ocean acidification in corals from the Mediterranean Sea, despite the fact that this basin is especially sensitive to increasing atmospheric CO2. In this context, we investigated the response to ocean acidification of the two zooxanthellate coral species capable of constituting the main framework of the community, the endemic Cladocora caespitosa and the non-native Oculina patagonica. To this end, we examined the response of both species to pCO2 concentrations expected by the end of the century, 800 ppm, vs the present levels. Calcification rate measurements after 92 days of exposure to low pH conditions showed the same negative response in both species, a decrease of ... : 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). The date of carbonate chemistry calculation by seacarb is 2013-11-29. ...