Hoogstraten, Astrid; Timmermans, Klaas R; de Baar, Hein J W (2012): Seawater carbonate chemistry, nutrients, chlorophyll and diatom Proboscia alata during experiments, 2012 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.778472, Supplement to: Hoogstraten, A et al. (2012): Morphological and physiological effects in Proboscia alata (bacillariophyceae) grown under different light and Co2 conditions of the modern Southern Ocean. Journal of Phycology, 48(3), 559-568, https://doi.org/10.1111/j.1529-8817.2012.01148.x
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Abstract:
The combined effects of different light and aqueous CO2 conditions were assessed for the Southern Ocean diatom Proboscia alata(Brightwell) Sundström in laboratory experiments. Selected culture conditions (light and CO2(aq)) were representative for the natural ranges in the modern Southern Ocean. Light conditions were 40 (low) and 240 (high) µmol photons/m**2/s. The three CO2(aq) conditions ranged from 8 to 34 µmol/kg CO2(aq) (equivalent to a pCO2 from 137 to 598 µatm, respectively). Clear morphological changes were induced by these different CO2(aq) conditions. Cells in low [CO2(aq)] formed spirals, while many cells in high [CO2(aq)] disintegrated. Cell size and volume were significantly affected by the different CO2(aq) concentrations. Increasing CO2(aq) concentrations led to an increase in particulate organic carbon concentrations per cell in the high light cultures, with exactly the opposite happening in the low light cultures. However, other parameters measured were not influenced by the range of CO2(aq) treatments. This included growth rates, chlorophyll aconcentration and photosynthetic yield (FV/FM). Different light treatments had a large effect on nutrient uptake. High light conditions caused an increased nutrient uptake rate compared to cells grown in low light conditions. Light and CO2 conditions co-determined in various ways the response of P. alata to changing environmental conditions. Overall P. alata appeared to be well adapted to the natural variability in light availability and CO2(aq) concentration of the modern Southern Ocean. Nevertheless, our results showed that P. alata is susceptible to future changes in inorganic carbon concentrations in the Southern Ocean.
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Project(s):
Funding:
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). Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
304 data points
Data
1 Exp treat | 2 Sal | 3 Temp [°C] | 4 T std dev [±] | 5 L:D [hh:hh] | 6 PAR [µmol/m2/s] | 7 AT [µmol/kg] (Potentiometric titration, VIN...) | 8 AT std dev [±] | 9 DIC [µmol/kg] | 10 DIC std dev [±] | 11 pCO2water_SST_wet [µatm] (Calculated using CO2SYS) | 12 pCO2 std dev [±] | 13 CO2 [µmol/kg] (Calculated using CO2SYS) | 14 CO2 std dev [±] | 15 [HCO3]- [µmol/kg] (Calculated using CO2SYS) | 16 [HCO3]- std dev [±] | 17 [CO3]2- [µmol/kg] (Calculated using CO2SYS) | 18 [CO3]2- std dev [±] | 19 pH (Calculated using CO2SYS) | 20 pH std dev [±] | 21 Repl [#] | 22 P. alata l [µm] (Microscopy) | 23 P. alata l std dev [±] | 24 P. alata diam [µm] (Microscopy) | 25 P. alata diam std dev [±] | 26 P. alata vol [µm3] (Microscopy) | 27 P. alata vol std dev [±] | 28 FV/FM (see reference(s)) | 29 alpha std dev [±] | 30 Chl a/cell [pg/#] (Spectrofluorometry) | 31 Chl a std dev [±] | 32 NO3 upt rate/cell [fmol/#/day] (Auto-analyzer, Technicon Traa...) | 33 NO3 upt rate std dev [±] | 34 PO4 upt rate/cell [fmol/#/day] (Auto-analyzer, Technicon Traa...) | 35 PO4 upt rate std dev [±] | 36 Si upt rate/cell [pmol/#/day] (Auto-analyzer, Technicon Traa...) | 37 Si upt std dev [±] | 38 N/P | 39 N/P std dev [±] | 40 N/Si | 41 Std dev [±] (N/Si ratio) | 42 Si/P | 43 Si/P std dev [±] | 44 CSC flag (Calculated using seacarb afte...) | 45 pH (Total scale, Calculated using...) | 46 CO2 [µmol/kg] (Calculated using seacarb afte...) | 47 pCO2water_SST_wet [µatm] (Calculated using seacarb afte...) | 48 fCO2water_SST_wet [µatm] (Calculated using seacarb afte...) | 49 [HCO3]- [µmol/kg] (Calculated using seacarb afte...) | 50 [CO3]2- [µmol/kg] (Calculated using seacarb afte...) | 51 Omega Arg (Calculated using seacarb afte...) | 52 Omega Cal (Calculated using seacarb afte...) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Low CO2 HL | 35.5 | 3 | 1 | 16:08 | 240 | 2518 | 4 | 2141 | 6 | 135 | 5 | 8 | 0 | 1875 | 11 | 258 | 6 | 8.47 | 0.01 | 97 | 219.9 | 54.2 | 28.5 | 2.0 | 142400 | 46100 | 0.67 | 0.02 | 97.1 | 6.600 | 108000 | 67000 | 12000 | 5000 | 157 | 69 | 8.33 | 1.54 | 0.66 | 0.12 | 12.73 | 1.22 | 15 | 8.47 | 7.46 | 133.90 | 133.34 | 1872.41 | 261.13 | 3.92 | 6.22 |
Intermediate CO2 HL | 35.5 | 3 | 1 | 16:08 | 240 | 2520 | 4 | 2229 | 12 | 200 | 9 | 11 | 1 | 2016 | 18 | 202 | 6 | 8.33 | 0.02 | 111 | 257.4 | 68.7 | 27.9 | 2.3 | 159700 | 54300 | 0.69 | 0.03 | 99.1 | 14.600 | 124000 | 64000 | 14000 | 8000 | 195 | 95 | 9.46 | 2.28 | 0.62 | 0.05 | 15.01 | 3.60 | 15 | 8.34 | 11.00 | 197.55 | 196.73 | 2013.35 | 204.65 | 3.07 | 4.88 |
High CO2 HL | 35.5 | 3 | 1 | 16:08 | 240 | 2528 | 3 | 2428 | 7 | 599 | 40 | 33 | 2 | 2307 | 10 | 88 | 5 | 7.91 | 0.03 | 121 | 223.7 | 54.4 | 27.8 | 2.0 | 137200 | 42900 | 0.68 | 0.03 | 104.9 | 12.400 | 144000 | 51000 | 17000 | 6000 | 225 | 83 | 8.66 | 1.19 | 0.64 | 0.03 | 13.47 | 1.32 | 15 | 7.92 | 32.91 | 591.06 | 588.60 | 2305.41 | 89.68 | 1.35 | 2.14 |
Low CO2 LL | 35.5 | 3 | 1 | 16:08 | 40 | 2517 | 4 | 2167 | 6 | 152 | 6 | 8 | 0 | 1919 | 12 | 240 | 6 | 8.43 | 0.02 | 130 | 263.5 | 97.5 | 28.5 | 2.4 | 170700 | 73400 | 0.69 | 0.05 | 109.8 | 12.900 | 57000 | 23000 | 3000 | 2000 | 140 | 111 | 20.04 | 5.40 | 0.53 | 0.21 | 47.37 | 31.62 | 15 | 8.43 | 8.38 | 150.46 | 149.84 | 1915.43 | 243.19 | 3.65 | 5.79 |
Intermediate CO2 LL | 35.5 | 3 | 1 | 16:08 | 40 | 2515 | 3 | 2266 | 3 | 246 | 6 | 14 | 0 | 2078 | 5 | 175 | 3 | 8.25 | 0.01 | 110 | 229.5 | 78.2 | 29.1 | 2.7 | 154100 | 59500 | 0.69 | 0.05 | 91.4 | 16.500 | 49000 | 22000 | 3000 | 3000 | 106 | 42 | 10.98 | 5.06 | 0.45 | 0.08 | 23.97 | 11.35 | 15 | 8.26 | 13.47 | 241.90 | 240.89 | 2075.01 | 177.52 | 2.67 | 4.23 |
High CO2 LL | 35.5 | 3 | 1 | 16:08 | 40 | 2532 | 2407 | 506 | 28 | 2277 | 102 | 7.98 | 43 | 271.2 | 56.3 | 29.5 | 2.2 | 188000 | 54400 | 0.67 | 0.04 | 540.3 | 428000 | 367000 | 31000 | 31000 | 392 | 289 | 13.43 | 2.41 | 1.02 | 0.18 | 13.49 | 4.09 | 15 | 7.99 | 27.86 | 500.29 | 498.21 | 2275.88 | 103.26 | 1.55 | 2.46 |