Seawater carbonate chemistry and coral community metabolism during year-long exposure to experimental elevated CO2 conditions

• Main Authors: Edmunds, Peter J, Doo, Steve S, Carpenter, Robert C
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Alkalinity; total; Aragonite saturation state; Benthos; Bicarbonate ion; Calcification/Dissolution; Calcification rate of calcium carbonate; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Coverage; Date; Day of experiment; Entire community; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Irradiance; Laboratory experiment; Local Time; Moorea_coral; Net calcification rate of calcium carbonate; Net photosynthesis rate; oxygen; Number; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Period; pH; Potentiometric; Potentiometric titration; Primary production/Photosynthesis; Rocky-shore community; Salinity; South Pacific; Temperature; water; Time in hours; Treatment: partial pressure of carbon dioxide; Tropical; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.965984; https://doi.org/10.1594/PANGAEA.965984

We describe year-long experiments in which back reef and fore reef (17-m depth) communities from Moorea, French Polynesia, were incubated outdoors under pCO2 regimes reflecting endpoints of representative concentration pathways (RCPs) expected by the end the century. Incubations were completed in 3–4 flumes (5.0 × 0.3 m, 500 L) in which seawater was refreshed and circulated at 0.1 m s-1, and the response of the communities was evaluated monthly by measurements of net community calcification (NCC) and net community photosynthesis (NCP).