Seawater carbonate chemistry and calcification, photosynthesis and respiration of sub-colonies of a single tropical Stylophora pistillata colony ...

• Main Authors: Cryer, Sarah E, Schlosser, Christian, Allison, Nicola
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Containers and aquaria 20-1000 L or < 1 m**2; Inorganic toxins; Laboratory experiment; Laboratory strains; Not applicable; Primary production/Photosynthesis; Respiration; Single species; Stylophora pistillata; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Identification; Day of experiment; Calcification rate; Net photosynthesis rate, oxygen, per coral sub-colony; Gross photosynthesis rate, oxygen, per coral sub-colony; Respiration rate, oxygen, per coral sub-colony; Calcification rate, per coral sub-colony; Treatment; Time in weeks; Gross calcification rate, relative; Salinity; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Replicates; Alkalinity, total; Alkalinity, total, 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; Copper; Copper, standard deviation; Carbonate system computation flag; pH; pH, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Fugacity of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide in seawater, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.945523; https://doi.pangaea.de/10.1594/PANGAEA.945523

A decrease in ocean pH of 0.3 units will likely double the proportion of dissolved copper (Cu) present as the free metal ion, Cu2+, the most bioavailable form of Cu, and one of the most common marine pollutants. We assess the impact of ocean acidification and Cu, separately and in combination, on calcification, photosynthesis and respiration of sub-colonies of a single tropical Stylophora pistillata colony. After 15 days of treatment, total calcification rates were significantly decreased in corals exposed to high seawater pCO2 (∼1000-μatm, 2100 scenario) and at both ambient (1.6–1.9 nmols) and high (2.5–3.6 nmols) dissolved Cu concentrations compared to controls. The effect was increased when both stressors were combined. Coral respiration rates were significantly reduced by the combined stressors after 2 weeks of exposure, indicating the importance of experiment duration. It is therefore likely rising atmospheric CO2 will exacerbate the negative effects of Cu pollution to S. pistillata. ... : 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 2022-06-15. ...