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Sordo, Laura; Santos, Rui; Barrote, Isabel; Silva, João (2018): Seawater carbonate chemistry and photosynthetic and calcification rate of the free-living coralline algae Phymatolithon lusitanicum [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.892895, Supplement to: Sordo, L et al. (2018): High CO2 decreases the long-term resilience of the free-living coralline algae Phymatolithon lusitanicum. Ecology and Evolution, 8(10), 4781-4792, https://doi.org/10.1002/ece3.4020

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Abstract:
Mäerl/rhodolith beds are protected habitats that may be affected by ocean acidification (OA), but it is still unclear how the availability of CO2 will affect the metabolism of these organisms. Some of the inconsistencies found among OA experimental studies may be related to experimental exposure time and synergetic effects with other stressors. Here, we investigated the long‐term (up to 20 months) effects of OA on the production and calcification of the most common mäerl species of southern Portugal, Phymatolithon lusitanicum. Both the photosynthetic and calcification rates increased with CO2 after the first 11 months of the experiment, whereas respiration slightly decreased with CO2. After 20 months, the pattern was reversed. Acidified algae showed lower photosynthetic and calcification rates, as well as lower accumulated growth than control algae, suggesting that a metabolic threshold was exceeded. Our results indicate that long‐term exposure to high CO2 will decrease the resilience of Phymatolithon lusitanicum. Our results also show that shallow communities of these rhodoliths may be particularly at risk, while deeper rhodolith beds may become ocean acidification refuges for this biological community.
Keyword(s):
Benthos; Calcification/Dissolution; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Macroalgae; North Atlantic; Phymatolithon lusitanicum; Plantae; Primary production/Photosynthesis; Rhodophyta; Single species; Temperate
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: 37.183510 * Longitude: -8.316680
Event(s):
Armacao_de_Pera * Latitude: 37.183510 * Longitude: -8.316680 * Method/Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 2018-08-06.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeSordo, Laurastudy
2SpeciesSpeciesSordo, Laura
3Registration number of speciesReg spec noSordo, Laura
4Uniform resource locator/link to referenceURL refSordo, LauraWoRMS Aphia ID
5Experiment durationExp durationmonthsSordo, Laura
6Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmSordo, Lauratreatment
7IrradianceEµmol/m2/sSordo, Lauratreatment
8Net photosynthesis rate, oxygenPN O2µmol/g/hSordo, Laura
9Net photosynthesis rate, oxygen, standard errorPN O2 std e±Sordo, Laura
10Calcification rate of calcium carbonateCalc rate CaCO3µmol/g/hSordo, Laura
11Calcification rate, standard errorCalc rate std e±Sordo, Laura
12DurationDurationmonthSordo, Laura
13Calcification rate of calcium carbonateCalc rate CaCO3µmol/g/daySordo, LauraBuoyant weighing technique according to Davies (1989)
14Calcification rate, standard deviationCalc rate std dev±Sordo, LauraBuoyant weighing technique according to Davies (1989)
15Growth, cumulative, per wet massGrowth cummmol/gSordo, Laura
16Growth, cumulative, per wet mass, standard deviationGrowth cum std dev±Sordo, Laura
17Alkalinity, totalATµmol/kgSordo, Laura11 months
18Alkalinity, total, standard errorAT std e±Sordo, Laura11 months
19SalinitySalSordo, Laura11 months
20Salinity, standard errorSal std e±Sordo, Laura11 months
21Temperature, waterTemp°CSordo, Laura11 months
22Temperature, water, standard errorT std e±Sordo, Laura11 months
23pHpHSordo, LauraNBS scale,11 months
24pH, standard errorpH std e±Sordo, LauraNBS scale, 11 months
25Carbon, inorganic, dissolvedDICµmol/kgSordo, LauraCalculated using CO2SYS11 months
26Carbon, inorganic, dissolved, standard errorDIC std e±Sordo, LauraCalculated using CO2SYS11 months
27Aragonite saturation stateOmega ArgSordo, LauraCalculated using CO2SYS11 months
28Aragonite saturation state, standard errorOmega Arg std e±Sordo, LauraCalculated using CO2SYS11 months
29Alkalinity, totalATµmol/kgSordo, Laura20 months
30Alkalinity, total, standard errorAT std e±Sordo, Laura20 months
31SalinitySalSordo, Laura20 months
32Salinity, standard errorSal std e±Sordo, Laura20 months
33Temperature, waterTemp°CSordo, Laura20 months
34Temperature, water, standard errorT std e±Sordo, Laura20 months
35pHpHSordo, LauraNBS scale, 20 months
36pH, standard errorpH std e±Sordo, LauraNBS scale, 20 months
37Carbon, inorganic, dissolvedDICµmol/kgSordo, LauraCalculated using CO2SYS20 months
38Carbon, inorganic, dissolved, standard errorDIC std e±Sordo, LauraCalculated using CO2SYS20 months
39Aragonite saturation stateOmega ArgSordo, LauraCalculated using CO2SYS20 months
40Aragonite saturation state, standard errorOmega Arg std e±Sordo, LauraCalculated using CO2SYS20 months
41Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale,11 months
43Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
44Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
45Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
46Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
47Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
48Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
49Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
50Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)11 months
51pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale, 20 months
52Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
53Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
54Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
55Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
56Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
57Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
58Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
59Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)20 months
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1926 data points

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