Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification, supplement to: Comeau, Steeve; Carpenter, Robert C; Edmunds, Peter J (2013): Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification. Marine Biology, 160(5), 1127-1134

• Main Authors: Comeau, Steeve, Carpenter, Robert C, Edmunds, Peter J
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2013
• Subjects: Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Light; Other; Porites rus; Single species; South Pacific; Tropical; Species; Date; Treatment; Sample code/label; Irradiance; Calcification rate of calcium carbonate; Damage rate, standard deviation; Salinity; Temperature, water; pH; Carbon dioxide; Partial pressure of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Alkalinity, total; Aragonite saturation state; Calcite saturation state; Carbonate system computation flag; Experiment; Buoyant weighing technique Davies, 1989; Potentiometric; Calculated using seacarb; Potentiometric titration; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Rus’; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.829815; https://doi.pangaea.de/10.1594/PANGAEA.829815

Recently, it has been suggested that there are conditions under which some coral species appear to be resistant to the effects of ocean acidification. To test if such resistance can be explained by environmental factors such as light and food availability, the present study investigated the effect of 3 feeding regimes crossed with 2 light levels on the response of the coral Porites rus to 2 levels of pCO2 at 28 °C. After 1, 2, and 3 weeks of incubation under experimental conditions, none of the factors-including pCO2-significantly affected area-normalized calcification and biomass-normalized calcification. Biomass also was unaffected during the first 2 weeks, but after 3 weeks, corals that were fed had more biomass per unit area than starved corals. These results suggest that P. rus is resistant to short-term exposure to high pCO2, regardless of food availability and light intensity. P. rus might therefore represent a model system for exploring the genetic basis of tolerance to OA. : 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 2013-12-18.