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Schoenrock, Kathryn M; Schram, Julie B; Amsler, Charles D; McClintock, James B; Angus, Robert A; Vohra, Yogesh K (2024): Seawater carbonate chemistry and effects of ocean acidification and rising sea surface temperatures on shallow-water benthic organisms in Antarctica [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.973512 (DOI registration in progress)

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Abstract:
The seawater parameters oceanic pH and temperature were modified to near future projections for the western Antarctic Peninsula in microcosm experiments. Experiments included two crustose algae, the calcified coralline alga Clathromorphum obtectulum and the fleshy encrusting rhodophyte Hildenbrandia sp., and were run for six weeks. Treatments reflected near future ocean conditions under climate change predictions: increased temperature (3.5 °C × pH 8.1), increased pCO2 (1.5 °C × pH 7.8), combined factors (3.5 °C × pH 7.8), and ambient conditions (1.5 °C × pH 8.1). The physiological responses of the algae were evaluated through photosynthetic parameters (slope to saturation of photo centers (α), saturating irradiance (Ek), maximum electron transport rate (ETRmax), maximum quantum yield of photosystem II (Fv/Fm)), growth, chlorophyll a concentration, and for C. obtectulum calcium carbonate content and Mg/Ca ratio.
This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were downloaded from U.S. Antarctic Program (USAP) Data Center (see Source) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) 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 2024-11-18.
Keyword(s):
Antarctic; Benthos; Bottles or small containers/Aquaria (<20 L); Calcification/Dissolution; Clathromorphum obtectulum; Coast and continental shelf; Growth/Morphology; Hildenbrandia sp.; Laboratory experiment; Macroalgae; Plantae; Polar; Primary production/Photosynthesis; Rhodophyta; Single species; Temperature
Related to:
Schoenrock, Kathryn M; Schram, Julie B; Amsler, Charles D; McClintock, James B; Angus, Robert A; Vohra, Yogesh K (2016): Climate change confers a potential advantage to fleshy Antarctic crustose macroalgae over calcified species. Journal of Experimental Marine Biology and Ecology, 474, 58-66, https://doi.org/10.1016/j.jembe.2015.09.009
Source:
Amsler, Charles D; Angus, Robert A; McClintock, James B (2015): The effects of ocean acidification and rising sea surface temperatures on shallow-water benthic organisms in Antarctica [dataset]. U.S. Antarctic Program (USAP) Data Center, https://doi.org/10.15784/600122
References:
Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010
Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024
Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016
Related code / software:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html
Further details:
Final_2012_SW_chemistry.
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Median Latitude: -64.769250 * Median Longitude: -64.073625 * South-bound Latitude: -64.778200 * West-bound Longitude: -64.098050 * North-bound Latitude: -64.760300 * East-bound Longitude: -64.049200
Date/Time Start: 2012-03-01T00:00:00 * Date/Time End: 2012-03-31T00:00:00
Event(s):
Hermit_Island * Latitude: -64.760300 * Longitude: -64.098050 * Date/Time Start: 2012-03-01T00:00:00 * Date/Time End: 2012-03-31T00:00:00
Kristie_Cove * Latitude: -64.778200 * Longitude: -64.049200 * Date/Time Start: 2012-03-01T00:00:00 * Date/Time End: 2012-03-31T00:00:00
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventSchoenrock, Kathryn M
2Type of studyStudy typeSchoenrock, Kathryn M
3SpeciesSpeciesSchoenrock, Kathryn M
4TreatmentTreatSchoenrock, Kathryn MpH
5TreatmentTreatSchoenrock, Kathryn Mtemp
6GrowthGrowth%Schoenrock, Kathryn M% original cm2
7Chlorophyll aChl aµg/gSchoenrock, Kathryn Mper algae
8Calcification intensityCalc intµg/mm2Schoenrock, Kathryn M
9Slope to saturation of photocentersalphaSchoenrock, Kathryn MLC at start
10Saturation light intensityEkµmol photons/m2/sSchoenrock, Kathryn MLC at start
11Maximum quantum yield of photosystem IIFv/FmSchoenrock, Kathryn MLC at start
12Maximal electron transport rateETR maxµmol/m2/sSchoenrock, Kathryn MLC at start
13Slope to saturation of photocentersalphaSchoenrock, Kathryn MLC at end
14Saturation light intensityEkµmol photons/m2/sSchoenrock, Kathryn MLC at end
15Maximum quantum yield of photosystem IIFv/FmSchoenrock, Kathryn MLC at end
16Maximal electron transport rateETR maxµmol/m2/sSchoenrock, Kathryn MLC at end
17pH, total scalepHTSchoenrock, Kathryn MSpectrophotometrictotal scale
18pH, standard deviationpH std dev±Schoenrock, Kathryn MSpectrophotometrictotal scale
19Alkalinity, totalATµmol/kgSchoenrock, Kathryn MPotentiometric titration
20Alkalinity, total, standard deviationAT std dev±Schoenrock, Kathryn MPotentiometric titration
21Temperature, waterTemp°CSchoenrock, Kathryn M
22Temperature, water, standard deviationTemp std dev±Schoenrock, Kathryn M
23SalinitySalSchoenrock, Kathryn M
24Salinity, standard deviationSal std dev±Schoenrock, Kathryn M
25Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmSchoenrock, Kathryn MCalculated using CO2calc
26Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Schoenrock, Kathryn MCalculated using CO2calc
27Aragonite saturation stateOmega ArgSchoenrock, Kathryn MCalculated using CO2calc
28Aragonite saturation state, standard deviationOmega Arg std dev±Schoenrock, Kathryn MCalculated using CO2calc
29Calcite saturation stateOmega CalSchoenrock, Kathryn MCalculated using CO2calc
30Calcite saturation state, standard deviationOmega Cal std dev±Schoenrock, Kathryn MCalculated using CO2calc
31Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
6034 data points

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