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For the carbonate chemistry:<\/p>\n
Seawater pH was measured twice a day (08:00 hrs and 18:00 hrs) in each incubation tank, using a pH meter (Orion, 3-stars mobile) calibrated every 2-3 d on the total scale using Tris\/HCl buffers (Dickson, San Diego, USA) with a salinity of 34.5. Total alkalinity of the seawater in the tanks was measured every 2 d, using single samples drawn from each tank in glass-stoppered bottles (250 mL). Samples were analyzed for total alkalinity within 1 d using open cell, potentiometric titration and an automatic titrator (T50, Mettler-Toledo). Titrations were conducted on 50-mL samples at ~ 24 \u00b0C, and total alkalinity calculated as described by Dickson et al. [2007]. Titrations of certified reference materials (CRM) provided by A. G. Dickson (batch 105) yielded total alkalinity values within 3.8 umol kg-1 of the nominal value (SD = 3.1 umol kg-1; n = 19). Salinity in the experimental tanks was measured every 2 d using a conductivity meter (YSI 3100). Total alkalinity, pH on the total scale (pHT), temperature, and salinity were used to calculate the carbonate chemsitry using the seacarb package (Lavigne and Gattuso 2012) running in R software (R Foundation for Statistical Computing).<\/p>\n
Calcification:<\/p>\n
Buoyant weight (\u00b1 1 mg) was recorded before and after the 15 d of incubation (following 15 d of acclimation), and the difference between the two was converted to dry weight using an aragonite density of 2.93 g cm^-3 for corals. Calcification was normalized to surface area estimated using aluminum foil for corals.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/ocean-data.org\/schema\/hasBriefDescription":[{"@value":"Calcification rates of 8 corals at varying pCO2 concentrations","@language":"en-US"}],"http:\/\/purl.org\/dc\/terms\/description":[{"@value":"
These data were obtained during an experiment performed in August-September-October 2011 and 2012 in French Polynesia. Calcification rates were measured in 8 corals (Porites rus, massive Porites, Porites irregularis, Pocillopora damicornis, Pocillopora verrucosa, Psammacora profundacella, Pavona cactus, Acropora pulchra)<\/em> at 6 pCO2.<\/p>\n Related References:<\/strong><\/p>\n Comeau, S., Edmunds, P. J., Spindel, N. B., Carpenter, R. C. (2014). Fast coral reef calcifiers are more sensitive to ocean acidification in short-term laboratory incubations. Limnology and Oceanography, 59(3), 1081\u20131091. doi:10.4319\/lo.2014.59.3.1081<\/p>\n Comeau, S., Edmunds, P. J., Spindel, N. B., Carpenter, R. C. (2013) The responses of eight coral reef calcifiers to increasing partial pressure of CO2 do not exhibit a tipping point. Limnol. Oceanogr.<\/em> 58, 388\u2013398.<\/p>\n Related datasets:<\/strong> Parameters of the carbonate system in seawater were calculated from salinity, temperature, A<\/em>T and pHT using the R package seacarb (Lavigne and Gattuso 2011).<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/purl.org\/dc\/terms\/identifier":[{"@value":"518462","@type":"xsd:int"}],"http:\/\/purl.org\/dc\/terms\/title":[{"@value":"coral_calcification"}],"http:\/\/purl.org\/dc\/terms\/date":[{"@value":"2014-07-09T11:58:56-04:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/created":[{"@value":"2014-07-09T11:58:56-04:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/modified":[{"@value":"2023-07-07T16:10:26-04:00","@type":"xsd:dateTime"}],"http:\/\/rdfs.org\/ns\/void#inDataset":[{"@id":"http:\/\/www.bco-dmo.org\/"}],"http:\/\/ocean-data.org\/schema\/namedGraph":[{"@value":"urn:bcodmo:dataset:518462","@type":"xsd:token"}],"http:\/\/ocean-data.org\/schema\/osprey_page":[{"@id":"https:\/\/www.bco-dmo.org\/dataset\/518462"}],"http:\/\/ocean-data.org\/schema\/identifier":[{"@value":"_:Identifier518462"}],"http:\/\/ocean-data.org\/schema\/datasetTitle":[{"@value":"Experimental results of calcification rates of corals at variable pCO2 from the Richard B Gump Research Station, Moorea, French Polynesia in 2011 (MCR LTER project, OA_Corals project)","@language":"en-US"}],"http:\/\/ocean-data.org\/schema\/abstract":[{"@value":"","@language":"en-US"}],"http:\/\/purl.org\/dc\/terms\/rights":[{"@id":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"http:\/\/ocean-data.org\/schema\/deprecated":[{"@value":"false","@type":"xsd:boolean"}],"http:\/\/ocean-data.org\/schema\/spatialCoverage":[{"@value":"_:spatialCoverage518462"}],"http:\/\/purl.org\/dc\/terms\/bibliographicCitation":[{"@value":"Comeau, S., Edmunds, P. 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algae_calcification<\/a>
carbonate_chemistry<\/a>
light_dark_calcification<\/a>
mean_calcification<\/a>
calcification rates - flume expt<\/a>
carbonate chemistry - flume expt<\/a><\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/www.w3.org\/2000\/01\/rdf-schema#label":[{"@value":"coral_calcification","@type":"xsd:string"}],"http:\/\/ocean-data.org\/schema\/hasProcessingDescription":[{"@value":"