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Engel, Anja (2002): Seawater carbonate chemistry and particulate organic particles during an incubation experiments with natural phytoplankton community, 2002. doi:10.1594/PANGAEA.717963,
Supplement to: Engel, A (2002): Direct relationship between CO2 uptake and transparent exopolymer particles production in natural phytoplankton. Journal of Plankton Research, 24(1), 49-53, doi:10.1093/plankt/24.1.49

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Abstract:
Incubation experiments with natural phytoplankton revealed a relationship between CO2 concentration and the production of transparent exopolymer particles (TEP), with TEP production being linearly related to theoretical CO2 uptake rates. The effect of different CO2 concentrations on TEP production was examined during incubation experiments with natural phytoplankton sampled at two different locations in the central Baltic Sea in summer 1999.
Event(s):
Engel_02/I * Device: Experiment (EXP)
Engel_02/II * Device: Experiment (EXP)
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) 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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Experimental treatmentExp trtmEngel, Anja
3SalinitySalEngel, AnjaCTD
4Temperature, waterTemp°CEngel, AnjaCTD
5Density, mass densityDensitykg/m3Engel, AnjaCalculated
6Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
7pHpHEngel, AnjapH, Electrodescale not given
8pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
9Alkalinity, totalATmmol(eq)/lEngel, AnjaCalculated from salinity
10Alkalinity, totalATµmol/kgEngel, AnjaCalculatedOriginal data in µEq/l, density, gotten from salinity and temperature, was used for conversion
11Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
12Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
13Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
14Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
15Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
17Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
18Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19Nitrogen, organic, particulatePONµg/lEngel, AnjaCN-analyser (CHN-O-rapid)
20Carbon, organic, particulatePOCµg/lEngel, AnjaCN-analyser (CHN-O-rapid)
21Phosphorus, organic, particulatePOPµmol/lEngel, AnjaDetermination of phosphorus (Koroleff, in Grasshoff et al., 1983, Chemie GmbH)
22Transparent exopolymer particles as Gum Xanthan equivalents per volumeTEPµg Xeq/lEngel, AnjaColorimetry
Size:
336 data points

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