Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Biswas, Haimanti; Cros, Alexander; Yadav, Kamana; Ramana, V Venkata; Prasad, V Rajendra; Archaryya, Tamoghna; Babu, P V Raghunadh (2011): Seawater carbonate chemistry, nutrients, growth rate and phytoplnkton community response to increasing CO2 concentration during experiments, 2011 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.770068, Supplement to: Biswas, H et al. (2011): The response of a natural phytoplankton community from the Godavari River Estuary to increasing CO2 concentration during the pre-monsoon period. Journal of Experimental Marine Biology and Ecology, 407(2), 284-293, https://doi.org/10.1016/j.jembe.2011.06.027

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX Citation

Abstract:
This paper reports for the first time upon the effects of increasing CO2 concentrations on a natural phytoplankton assemblage in a tropical estuary (the Godavari River Estuary in India). Two short-term (5-day) bottle experiments were conducted (with and without nutrient addition) during the pre-monsoon season when the partial pressure of CO2 in the surface water is quite low. The results reveal that the concentrations of total chlorophyll, the phytoplankton growth rate, the concentrations of particulate organic matter, the photosynthetic oxygen evolution rates, and the total bacterial count were higher under elevated CO2 treatments, as compared to ambient conditions (control). delta13C of particulate organic matter (POM) varied inversely with respect to CO2, indicating a clear signature of higher CO2 influx under the elevated CO2 levels. Whereas, delta13CPOM in the controls indicated the existence of an active bicarbonate transport system under limited CO2 supply. A considerable change in phytoplankton community structure was noticed, with marker pigment analysis by HPLC revealing that cyanobacteria were dominant over diatoms as CO2 concentrations increased. A mass balance calculation indicated that insufficient nutrients (N, P and Si) might have inhibited diatomgrowth compared to cyanobacteria, regardless of increased CO2 supply. The present study suggests that CO2 concentration and nutrient supply could have significant effects on phytoplankton physiology and community composition for natural phytoplankton communities in this region. However, this work was conducted during a non-discharge period (nutrient-limited conditions) and the responses of phytoplankton to increasing CO2 might not necessarily be the same during other seasons with high physicochemical variability. Further investigation is therefore needed.
Keyword(s):
Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria (<20 L); Brackish waters; Entire community; Growth/Morphology; Indian Ocean; Laboratory experiment; Pelagos; Primary production/Photosynthesis; Tropical
Funding:
Seventh Framework Programme (FP7), grant/award no. 211384: European Project on Ocean Acidification
Sixth Framework Programme (FP6), grant/award no. 511106: European network of excellence for Ocean Ecosystems Analysis
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 InvestigatorMethod/DeviceComment
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmBiswas, HaimantiCalculated using CO2SYS
Carbon dioxide, partial pressure, standard deviationpCO2 std dev±Biswas, Haimanti
SalinitySalBiswas, Haimanti
Salinity, standard deviationSal std dev±Biswas, Haimanti
Temperature, waterTemp°CBiswas, Haimanti
Temperature, standard deviationT std dev±Biswas, Haimanti
Alkalinity, totalATµmol/kgBiswas, HaimantiTitration potentiometric, 794 Basic Titrino (Metrohm)
Alkalinity, total, standard deviationAT std dev±Biswas, Haimanti
pHpHBiswas, HaimantiCalculated using CO2SYSNBS scale
10 pH, standard deviationpH std dev±Biswas, Haimanti
11 Carbon, inorganic, dissolvedDICµmol/kgBiswas, HaimantiCoulometric titration
12 Carbon, inorganic, dissolved, standard deviationDIC std dev±Biswas, Haimanti
13 Nitrogen, inorganic, dissolvedDINµmol/lBiswas, HaimantiSpectrophotometry
14 Dissolved inorganic nitrogen, standard deviationDIN std dev±Biswas, Haimanti
15 Phosphorus, inorganic, dissolvedDIPµmol/lBiswas, HaimantiSpectrophotometry
16 Phosphorus, inorganic, dissolved, standard deviationDIP std dev±Biswas, Haimanti
17 SilicateSi(OH)4µmol/lBiswas, HaimantiSpectrophotometry
18 Silicate, standard deviationSi(OH)4 std dev±Biswas, Haimanti
19 Carbon, organic, particulatePOCµmol/lBiswas, HaimantiMass spectrometry
20 Carbon, organic, particulate, standard deviationPOC std dev±Biswas, Haimanti
21 Nitrogen, organic, particulatePONµmol/lBiswas, HaimantiMass spectrometry
22 Particulate organic nitrogen, standard deviationPON std dev±Biswas, Haimanti
23 Carbon/Nitrogen ratioC/NBiswas, Haimanti
24 Carbon/Nitrogen ratio, standard deviationC/N std dev±Biswas, Haimanti
25 Chlorophyll aChl aµg/lBiswas, Haimanti
26 Chlorophyll a, standard deviationChl a std dev±Biswas, Haimanti
27 Growth rateµ#/dayBiswas, HaimantiCalculated
28 Growth rate, standard deviationµ std dev±Biswas, Haimanti
29 Chlorophyll a/particulate organic carbon ratioChl a/POCBiswas, Haimanti
30 Chlorophyll a/particulate organic carbon ratio, standard deviationChl a/POC std dev±Biswas, Haimanti
31 Photosynthetic oxygen evolution, per particulate organic carbonO2/POCµg/µmol/hBiswas, Haimanti
32 Photosynthetic oxygen evolution, per particulate organic carbon, standard deviationO2/POC std dev±Biswas, Haimanti
33 δ13Cδ13C‰ PDBBiswas, Haimanti
34 δ13C, standard deviationδ13C std dev±Biswas, HaimantiIsotope ratio mass spectrometry
35 BacteriaBact#/mlBiswas, HaimantiFluorescent microscope
36 Bacteria, abundance, standard deviationBact abund std dev±Biswas, Haimanti
37 Fucoxanthin/chlorophyll a ratioFuco/Chl aBiswas, Haimanti
38 Fucoxanthin/chlorophyll a ratio, standard devitationFuco/Chl a std dev±Biswas, Haimanti
39 Zeaxanthin/Fucoxanthin ratioZea/fucoBiswas, Haimanti
40 Zeaxanthin/Fucoxanthin ratio, standard devitationZea/fuco std dev±Biswas, Haimanti
41 Alkaline phosphatase activity, normalized to particulate organic carbonALKP A/POCnmol/µmol/hBiswas, Haimanti
42 Alkaline phosphatase activity, normalized to particulate organic carbon, standard deviationALKP A/POC std dev±Biswas, Haimanti
43 Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
44 pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
45 Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
46 Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
47 Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
48 Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
49 Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
50 Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
51 Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
351 data points

Data

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


pCO2water_SST_wet [µatm]
(Calculated using CO2SYS)

pCO2 std dev [±]

Sal

Sal std dev [±]

Temp [°C]

T std dev [±]

AT [µmol/kg]
(Titration potentiometric, 794...)

AT std dev [±]

pH
(NBS scale, Calculated using C...)
10 
pH std dev [±]
11 
DIC [µmol/kg]
(Coulometric titration)
12 
DIC std dev [±]
13 
DIN [µmol/l]
(Spectrophotometry)
14 
DIN std dev [±]
15 
DIP [µmol/l]
(Spectrophotometry)
16 
DIP std dev [±]
17 
Si(OH)4 [µmol/l]
(Spectrophotometry)
18 
Si(OH)4 std dev [±]
19 
POC [µmol/l]
(Mass spectrometry)
20 
POC std dev [±]
21 
PON [µmol/l]
(Mass spectrometry)
22 
PON std dev [±]
23 
C/N
24 
C/N std dev [±]
25 
Chl a [µg/l]
26 
Chl a std dev [±]
27 
µ [#/day]
(Calculated)
28 
µ std dev [±]
29 
Chl a/POC
30 
Chl a/POC std dev [±]
31 
O2/POC [µg/µmol/h]
32 
O2/POC std dev [±]
33 
δ13C [‰ PDB]
34 
δ13C std dev [±]
(Isotope ratio mass spectrometry)
35 
Bact [#/ml]
(Fluorescent microscope)
36 
Bact abund std dev [±]
37 
Fuco/Chl a
38 
Fuco/Chl a std dev [±]
39 
Zea/fuco
40 
Zea/fuco std dev [±]
41 
ALKP A/POC [nmol/µmol/h]
42 
ALKP A/POC std dev [±]
43 
CSC flag
(Calculated using seacarb afte...)
44 
pH
(Total scale, Calculated using...)
45 
CO2 [µmol/kg]
(Calculated using seacarb afte...)
46 
pCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)
47 
fCO2water_SST_wet [µatm]
(Calculated using seacarb afte...)
48 
[HCO3]- [µmol/kg]
(Calculated using seacarb afte...)
49 
[CO3]2- [µmol/kg]
(Calculated using seacarb afte...)
50 
Omega Arg
(Calculated using seacarb afte...)
51 
Omega Cal
(Calculated using seacarb afte...)
1561226.730.0228.761.302212128.520.03172287.580.0233.200.0914.81.20156.6641.4924.263.676.090.476.361.630.190.050.00340.000251.610.69-23.750.632.950.780.250.0512.780.37268.413.80141.20140.771365.47352.735.969.17
244526.730.0228.761.30230438.390.01189977.580.0233.200.0914.81.20168.1123.0626.612.986.500.247.782.310.230.060.00350.000821.390.35-24.350.322.320.190.930.3914.601.16268.276.13227.65226.971594.54298.335.047.75
363926.730.0228.761.30221068.240.01189977.580.0233.200.0914.81.20188.6726.8029.563.056.510.078.901.980.260.050.00410.000502.530.22-24.600.191.070.241.520.1827.140.66268.148.64320.71319.751660.67229.703.885.97
225724.980.0329.540.091968118.360.01162476.910.1200.550.055.20.0666.203.9910.210.316.480.332.400.490.140.040.00320.000500.470.16-24.810.06350000830001.500.062.450.0624.062.00268.265.46204.70204.091373.02245.534.206.49
646924.980.0329.540.09210018.020.01192846.910.1200.550.055.20.06100.835.4414.230.467.080.314.810.780.280.030.00400.000470.580.09-25.200.115300001330001.130.271.670.2724.681.26267.8916.50618.90617.051775.67135.822.323.59
14031424.980.0329.540.09198427.700.00192846.910.1200.550.055.20.06107.4315.0615.956.467.110.334.830.570.280.020.00380.000180.900.06-26.000.239880003040000.720.242.830.2421.742.08267.5636.201357.661353.621826.3065.501.121.73
1860724.980.0329.540.09195547.580.00192846.910.1200.550.055.20.06105.027.2214.442.826.980.204.691.440.260.070.00370.000621.000.13-26.240.131160000844000.540.034.710.0323.176.18267.4646.061727.291722.141830.2451.700.881.37