Seawater carbonate chemistry, nutrient uptake and biological processes of coral Stylophora pistillata during experiments, 2011 ...

• Main Authors: Godinot, Claire, Houlbrèque, Fanny, Grover, Renaud, Ferrier-Pagès, Christine
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Animalia; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Cnidaria; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Laboratory strains; Primary production/Photosynthesis; Red Sea; Single species; Stylophora pistillata; Temperature; Salinity; Temperature, water; pH; Alkalinity, total; Alkalinity, total, standard deviation; Radiation, photosynthetically active; LightDark cycle; Electron transport rate of photosystem II; Oxygen evolution, per chlorophyll a; Stylophora pistillata, zooxanthellate cell density; Stylophora pistillata, chlorophyll; Stylophora pistillata, protein content; Maximum photochemical quantum yield of photosystem II; Nutrient uptake rate, per chlorophyll; Carbonate system computation flag; 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; Aragonite saturation state; Calcite saturation state; pH meter Metrohm, 826 pH mobile; Alkalinity, Gran titration Gran, 1950; pulse-amplitude-modulated chlorophyll fluorometry diving PAM, Waltz, Germany; see references; Spectrophotometry; Spectrofluorometry; Autoanalyzer; Calculated using seacarb after Nisumaa et al. 2010; European network of excellence for Ocean Ecosystems Analysis EUR-OCEANS; European Project on Ocean Acidification EPOCA; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.771571; https://doi.pangaea.de/10.1594/PANGAEA.771571

The effects of ocean acidification and elevated seawater temperature on coral calcification and photosynthesis have been extensively investigated over the last two decades, whereas they are still unknown on nutrient uptake, despite their importance for coral energetics. We therefore studied the separate and combined impacts of increases in temperature and pCO2 on phosphate, ammonium, and nitrate uptake rates by the scleractinian coral S. pistillata. Three experiments were performed, during 10 days i) at three pHT conditions (8.1, 7.8, and 7.5) and normal temperature (26°C), ii) at three temperature conditions (26°, 29°C, and 33°C) and normal pHT(8.1), and iii) at three pHT conditions (8.1, 7.8, and 7.5) and elevated temperature (33°C). After 10 days of incubation, corals had not bleached, as protein, chlorophyll, and zooxanthellae contents were the same in all treatments. However, photosynthetic rates significantly decreased at 33°C, and were further reduced for the pHT 7.5. The photosynthetic efficiency 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). ...