Seawater carbonate chemistry and net ecosystem calcification and production in a coral community Kaneohe Bay, Oahu, Hawaii, 2011 ...

• Main Authors: Shamberger, K E F, Feely, Richard A, Sabine, Christopher L, Atkinson, M J, DeCarlo, E H, Mackenzie, Fred T, Drupp, P S, Butterfield, David A
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Benthos; Calcification/Dissolution; Coast and continental shelf; Entire community; Field observation; North Pacific; Rocky-shore community; Tropical; LATITUDE; LONGITUDE; DATE/TIME; Salinity; Temperature, water; Carbon, inorganic, dissolved; Alkalinity, total; Calcification rate of calcium carbonate; Net production; Carbonate system computation flag; 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; Aragonite saturation state; Calcite saturation state; CTD, Sea-Bird; Coulometric titration; Potentiometric open-cell titration; Alkalinity anomaly technique Smith and Key, 1975; Calculated, see references; 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; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.770089; https://doi.pangaea.de/10.1594/PANGAEA.770089

Net ecosystem calcification rates (NEC) and net photosynthesis (NP) were determined from CO2 seawater parameters on the barrier coral reef of Kaneohe Bay, Oahu, Hawaii. Autosamplers were deployed to collect samples on the barrier reef every 2 hours for six 48-hour deployments, two each in June 2008, August 2009, and January/February 2010. NEC on the Kaneohe Bay barrier reef increased throughout the day and decreased at night. Net calcification continued at low rates at night except for six time periods when net dissolution was measured. The barrier reef was generally net photosynthetic (positive NP) during the day and net respiring (negative NP) at night. NP controlled the diel cycles of the partial pressure of CO2 (pCO2) and aragonite saturation state resulting in high daytime aragonite saturation state levels when calcification rates were at their peak. However, the NEC and NP diel cycles can become decoupled for short periods of time (several hours) without affecting calcification rates. On a net daily ... : 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). ...