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Schubert, Nadine; Hofmann, Laurie C; Almeida Saá, Antonella C; Moreira, Anderson Camargo; Arenhart, Rafael Güntzel; Fernandes, Celso Peres; de Beer, Dirk; Horta, Paulo Antunes; Silva, João (2021): Seawater carbonate chemistry and gross photosynthesis, respiration, calcification of coralline algae [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.937216

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Abstract:
Rhodolith beds built by free-living coralline algae are important ecosystems for marine biodiversity and carbonate production. Yet, our mechanistic understanding regarding rhodolith physiology and its drivers is still limited. Using three rhodolith species with different branching morphologies, we investigated the role of morphology in species' physiology and the implications for their susceptibility to ocean acidification (OA). For this, we determined the effects of thallus topography on diffusive boundary layer (DBL) thickness, the associated microscale oxygen and pH dynamics and their relationship with species' metabolic and light and dark calcification rates, as well as species' responses to short-term OA exposure. Our results show that rhodolith branching creates low-flow microenvironments that exhibit increasing DBL thickness with increasing branch length. This, together with species' metabolic rates, determined the light-dependent pH dynamics at the algal surface, which in turn dictated species' calcification rates. While these differences did not translate in species-specific responses to short-term OA exposure, the differences in the magnitude of diurnal pH fluctuations ( 0.1–1.2 pH units) between species suggest potential differences in phenotypic plasticity to OA that may result in different susceptibilities to long-term OA exposure, supporting the general view that species' ecomechanical characteristics must be considered for predicting OA responses.
Keyword(s):
Benthos; Calcification/Dissolution; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Laboratory experiment; Lithophyllum atlanticum; Lithothamnion crispatum; Macroalgae; Melyvonnea erubescens; Plantae; Primary production/Photosynthesis; Respiration; Rhodophyta; Single species; South Atlantic; Temperate
Supplement to:
Schubert, Nadine; Hofmann, Laurie C; Almeida Saá, Antonella C; Moreira, Anderson Camargo; Arenhart, Rafael Güntzel; Fernandes, Celso Peres; de Beer, Dirk; Horta, Paulo Antunes; Silva, João (2021): Calcification in free-living coralline algae is strongly influenced by morphology: Implications for susceptibility to ocean acidification. Scientific Reports, 11(1), https://doi.org/10.1038/s41598-021-90632-6
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: -26.726300 * Longitude: -47.633000
Event(s):
Arvoredo_Marine_Biological_Reserve * Latitude: -26.726300 * Longitude: -47.633000
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2021-10-12.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 TypeTypeSchubert, Nadine
2 SpeciesSpeciesSchubert, Nadine
3 Registration number of speciesReg spec noSchubert, Nadine
4 Uniform resource locator/link to referenceURL refSchubert, Nadine
5 TreatmentTreatSchubert, Nadine
6 Gross photosynthesis rate, oxygenPG O2µmol/cm2/hSchubert, Nadine
7 Gross photosynthesis rate, oxygen, standard errorPG O2 std e±Schubert, Nadine
8 Respiration rate, oxygenResp O2µmol/cm2/hSchubert, Nadine
9 Respiration rate, oxygen, standard errorResp O2 std e±Schubert, Nadine
10 Calcification rate of calcium carbonateCalc rate CaCO3µmol/cm2/hSchubert, NadineLight
11 Calcification rate, standard errorCalc rate std e±Schubert, NadineLight
12 Calcification rate of calcium carbonateCalc rate CaCO3µmol/cm2/hSchubert, NadineDark
13 Calcification rate, standard errorCalc rate std e±Schubert, NadineDark
14 SalinitySalSchubert, Nadine
15 Temperature, waterTemp°CSchubert, Nadine
16 pHpHSchubert, NadinePotentiometricNBS scale
17 Alkalinity, totalATµmol/kgSchubert, NadinePotentiometric titration
18 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmSchubert, Nadine
19 Bicarbonate ion[HCO3]-µmol/kgSchubert, Nadine
20 Carbonate ion[CO3]2-µmol/kgSchubert, Nadine
21 Carbon dioxideCO2µmol/kgSchubert, Nadine
22 Carbon, inorganic, dissolvedDICµmol/kgSchubert, Nadine
23 Calcite saturation stateOmega CalSchubert, Nadine
24 Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25 pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
26 Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27 Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29 Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30 Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31 Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32 Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33 Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
198 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Type		2 
Species		3 
Reg spec no		4 
URL ref		5 
Treat		6 
PG O2 [µmol/cm2/h]		7 
PG O2 std e [±]		8 
Resp O2 [µmol/cm2/h]		9 
Resp O2 std e [±]		10 
Calc rate CaCO3 [µmol/cm2/h]
(Light)		11 
Calc rate std e [±]
(Light)		12 
Calc rate CaCO3 [µmol/cm2/h]
(Dark)		13 
Calc rate std e [±]
(Dark)		14 
Sal		15 
Temp [°C]		16 
pH
(NBS scale, Potentiometric)		17 
AT [µmol/kg]
(Potentiometric titration)		18 
pCO2water_SST_wet [µatm]		19 
[HCO3]- [µmol/kg]		20 
[CO3]2- [µmol/kg]		21 
CO2 [µmol/kg]		22 
DIC [µmol/kg]		23 
Omega Cal		24 
CSC flag
(Calculated using seacarb afte...)		25 
pH
(total scale, Calculated using...)		26 
CO2 [µmol/kg]
(Calculated using seacarb afte...)		27 
fCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		28 
pCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)		29 
[HCO3]- [µmol/kg]
(Calculated using seacarb afte...)		30 
[CO3]2- [µmol/kg]
(Calculated using seacarb afte...)		31 
DIC [µmol/kg]
(Calculated using seacarb afte...)		32 
Omega Arg
(Calculated using seacarb afte...)		33 
Omega Cal
(Calculated using seacarb afte...)
laboratoryLithothamnion crispatum (macroalga)145166marinespecies.orgConrol0.500.03-0.100.020.120.010.040.0135248.1202378327.21772.1247.89.52029.46.0267.9914.12484.93486.501907.46192.622114.203.044.63
laboratoryLithothamnion crispatum (macroalga)145166marinespecies.orgpH=7.70.510.01-0.170.030.130.01-0.070.0035247.89823771019.12103.7112.129.62245.42.7267.7625.57877.91880.752071.01125.422222.001.983.02
laboratoryLithophyllum atlanticum (macroalga)837374marinespecies.orgConrol0.610.02-0.180.010.190.01-0.040.0135248.1202378327.21772.1247.89.52029.46.0267.9914.12484.93486.501907.46192.622114.203.044.63
laboratoryLithophyllum atlanticum (macroalga)837374marinespecies.orgpH=7.70.720.04-0.250.020.150.02-0.160.0335247.89823771019.12103.7112.129.62245.42.7267.7625.57877.91880.752071.01125.422222.001.983.02
laboratoryMelyvonnea erubescens (macroalga)841069marinespecies.orgConrol0.520.03-0.140.010.080.01-0.010.0335248.1202378327.21772.1247.89.52029.46.0267.9914.12484.93486.501907.46192.622114.203.044.63
laboratoryMelyvonnea erubescens (macroalga)841069marinespecies.orgpH=7.70.550.05-0.210.020.110.02-0.090.0035247.89823771019.12103.7112.129.62245.42.7267.7625.57877.91880.752071.01125.422222.001.983.02