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Domingues, Rita B; Guerra, Catia C; Galvão, Helena M; Brotas, Vanda; Barbosa, Ana B (2017): Seawater carbonate chemistry and abundance, biomass and growth rate of the phytoplankton community in a shallow coastal lagoon [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.879816, Supplement to: Domingues, RB et al. (2017): Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon. Aquatic Ecology, 51(1), 91-105, https://doi.org/10.1007/s10452-016-9601-4

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Abstract:
The main goal of this study was to evaluate short-term interactions between increased CO2, UVR and inorganic macronutrients (N, P and Si) on summer phytoplankton assemblages in the Ria Formosa coastal lagoon (SW Iberia), subjected to intense anthropogenic pressures and highly vulnerable to climate change. A multifactorial experiment using 20 different nutrient-enriched microcosms exposed to different spectral and CO2 conditions was designed. Before and after a 24-h in situ incubation, phytoplankton abundance and composition were analysed. Impacts and interactive effects of high CO2, UVR and nutrients varied among different functional groups. Increased UVR had negative effects on diatoms and cyanobacteria and positive effects on cryptophytes, whereas increased CO2 inhibited cyanobacteria but increased cryptophyte growth. A positive synergistic interaction between CO2 and UVR was observed for diatoms; high CO2 counteracted the negative effects of UVR under ambient nutrient concentrations. Nutrient enrichments suppressed the negative effects of high CO2 and UVR on cyanobacteria and diatoms, respectively. Beneficial effects of CO2 were observed for diatoms and cryptophytes under combined additions of nitrate and ammonium, suggesting that growth may be limited by DIC availability when the primary limitation by nitrogen is alleviated. Beneficial effects of high CO2 and UVR in diatoms were also induced or intensified by ammonium additions.
Keyword(s):
Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Community composition and diversity; Entire community; Growth/Morphology; Laboratory experiment; Light; Macro-nutrients; North Atlantic; Pelagos; 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)
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 2017-08-22.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeDomingues, Rita Bstudy
2Experiment durationExp durationdaysDomingues, Rita B
3FigureFigDomingues, Rita B
4Time in daysTimedaysDomingues, Rita B
5TreatmentTreatDomingues, Rita B
6TreatmentTreatDomingues, Rita B
7SpeciesSpeciesDomingues, Rita B
8Cell densityCells#/mlDomingues, Rita B
9BiomassBiomg/lDomingues, Rita B
10Growth rateµ1/dayDomingues, Rita Bcommunity
11Growth rate, standard errorµ std e±Domingues, Rita Bcommunity
12Growth rateµ1/dayDomingues, Rita Bnet
13Growth rate, standard errorµ std e±Domingues, Rita Bnet
14SalinitySalDomingues, Rita B
15Temperature, waterTemp°CDomingues, Rita B
16pHpHDomingues, Rita Btotal scale
17Alkalinity, totalATµmol/kgDomingues, Rita B
18Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
19Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
20Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
21Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
2787 data points

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