/* DATA DESCRIPTION: Citation: Trimborn, Scarlett (2019): Acidification and irradiance effect on the photo-physiological fitness, growth and carbon production of the Antarctic cryptophyte Geminigera cryophila. PANGAEA, https://doi.org/10.1594/PANGAEA.904010, Supplement to: Trimborn, Scarlett; Thoms, Silke; Karitter, Pascal; Bischof, Kai (2019): Ocean acidification and high irradiance stimulate growth of the Antarctic cryptophyte Geminigera cryophila. Biogeosciences, 16, 2997–3008, https://doi.org/10.5194/bg-2019-97 Abstract: Ecophysiological studies on Antarctic cryptophytes to assess whether climatic changes such as ocean acidification and enhanced stratification affect their growth in Antarctic coastal waters in the future are lacking so far. This is the first study that investigates the combined effects of the increasing availability of pCO2 (400 and 1000 μatm) and irradiance (20, 200 and 500 μmol photons m-2 s-1) on growth, elemental composition and photo-physiology of the Antarctic cryptophyte Geminigera cryophila. Under ambient pCO2, this species was characterized by a pronounced sensitivity to increasing irradiance with complete growth inhibition at the highest light intensity. Interestingly, when grown under high pCO2 this negative light effect vanished, and it reached the highest rates of growth and particulate organic carbon production at the highest irradiance compared to the other tested experimental conditions. Our results for G. cryophila reveal beneficial effects of ocean acidification in conjunction with enhanced irradiance on growth and photosynthesis. Hence, cryptophytes such as G. cryophila may be potential winners of climate change, potentially thriving better in more stratified and acidic coastal waters and contributing in higher abundance to future phytoplankton assemblages of coastal Antarctic waters. Keyword(s): cryptophytes; irradiance; Ocean acidification; Southern Ocean Comment: #999: not grown Parameter(s): Type (Type) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Species (Species) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Registration number of species (Reg spec no) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Uniform resource locator/link to reference (URL ref) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: WoRMS Aphia ID Treatment: light intensity [µmol/m**2/s] (T:Io) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: Irradiance Treatment: partial pressure of carbon dioxide [µatm] (T:pCO2) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Phytoplankton growth rate [1/day] (Phytopl µ) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Growth rate, standard deviation [±] (µ std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Carbon, organic, particulate, per cell [pg/#] (POC/cell) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Carbon, organic, particulate, standard deviation [±] (POC std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: pg C/cell Particulate organic carbon production per cell [pg/#/day] (POC prod/cell) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Particulate organic carbon, production, standard deviation [±] (POC prod std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: pg C/cell/day Nitrogen, organic, particulate, per cell [pg/#] (PON/cell) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Nitrogen, organic, particulate, per cell, standard deviation [±] (PON/cell std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Production of particulate organic nitrogen [pg/#/day] (PON prod) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Particulate organic nitrogen production, standard deviation [±] (PON prod std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: pg N/cell/day Carbon/Nitrogen ratio [mol/mol] (C/N) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Carbon/Nitrogen ratio, standard deviation [±] (C/N std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Maximum photochemical quantum yield of photosystem II (Fv/Fm) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Maximum photochemical quantum yield of photosystem II, standard deviation [±] (Fv/Fm std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Recovery [%] (Recovery) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: Fv/Fm recovery [% of initial] Standard deviation [±] (Std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) * COMMENT: Fv/Fm recovery [% of initial] std dev Functional photosystem II reaction centers, per cell [zmol/#] (RCII/cell) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Functional photosystem II reaction centers, standard deviation [±] (RCII std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Connectivity between photosystem II (p) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Connectivity between photosystem II, standard deviation [±] (p std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Functional absorption cross sections of photosystem II reaction centers [nm**2] (Sigma PSII) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Functional absorption cross sections of photosystem II reaction centers, standard deviation [±] (Sigma PSII std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Re-oxidation time of the Qa acceptor [µs] (tQa) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Re-oxidation time of the Qa acceptor, standard deviation [±] (tQa std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Irradiance [µmol/m**2/s] (E) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Electron transport rate, absolute [e/PSII/s] (aETR) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Electron transport rate, absolute, standard deviation [±] (aETR std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Non photochemical quenching (NPQ) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) Non photochemical quenching, standard deviation [±] (NPQ std dev) * PI: Trimborn, Scarlett (https://orcid.org/0000-0003-1434-9927, scarlett.trimborn@awi.de) License: Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/) Size: 640 data points */ Type Species Reg spec no URL ref T:Io [µmol/m**2/s] T:pCO2 [µatm] Phytopl µ [1/day] µ std dev [±] POC/cell [pg/#] POC std dev [±] POC prod/cell [pg/#/day] POC prod std dev [±] PON/cell [pg/#] PON/cell std dev [±] PON prod [pg/#/day] PON prod std dev [±] C/N [mol/mol] C/N std dev [±] Fv/Fm Fv/Fm std dev [±] Recovery [%] Std dev [±] RCII/cell [zmol/#] RCII std dev [±] p p std dev [±] Sigma PSII [nm**2] Sigma PSII std dev [±] tQa [µs] tQa std dev [±] E [µmol/m**2/s] aETR [e/PSII/s] aETR std dev [±] NPQ NPQ std dev [±] laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 0.13 0.00 121.10 6.49 16.0 1.0 23.05 1.38 3.04 0.22 6.1 0.1 0.41 0.02 89.6 4.8 604 63 0.40 0.03 4.10 0.11 825 49 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 0.19 0.03 113.67 16.83 21.1 2.1 23.22 3.21 4.31 0.24 5.7 0.2 0.37 0.01 99.4 3.9 370 30 0.36 0.03 4.25 0.17 744 31 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 400 #999.00 #999.00 #999.00 #999.00 #999.0 #999.0 #999.00 #999.00 #999.00 #999.00 #999.0 #999.0 #999.00 #999.00 #999.0 #999.0 #999 #999 #999.00 #999.00 #999.00 #999.00 #999 #999 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 0.09 0.02 136.07 6.08 11.8 3.6 28.95 1.63 2.53 0.80 5.5 0.1 0.48 0.01 90.6 1.9 383 62 0.41 0.02 4.49 0.08 798 19 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 0.17 0.04 116.57 9.94 19.9 2.7 23.21 2.31 3.98 0.71 5.9 0.3 0.39 0.02 94.3 2.2 550 32 0.32 0.06 4.14 0.21 772 40 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 0.25 0.02 108.86 6.72 27.7 0.9 24.39 1.53 6.19 0.21 5.2 0.1 0.33 0.02 93.7 1.4 454 67 0.26 0.04 4.89 0.17 681 14 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 35 59 2 0.07 0.04 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 60 84 14 0.20 0.14 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 84 103 27 0.30 0.19 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 108 119 30 0.41 0.17 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 156 147 22 0.57 0.09 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 201 0.69 0.01 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 246 123 31 0.71 0.10 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 352 133 24 0.81 0.08 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 400 658 110 5 0.97 0.06 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 35 73 3 0.01 0.04 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 60 101 5 0.12 0.11 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 84 127 4 0.15 0.05 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 108 158 3 0.18 0.03 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 201 231 10 0.29 0.02 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 246 254 23 0.29 0.06 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 352 275 39 0.36 0.13 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 20 1000 658 244 55 0.52 0.12 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 35 76 1 -0.06 0.02 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 60 114 9 -0.01 0.03 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 84 153 12 0.04 0.03 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 108 179 17 0.17 0.05 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 156 205 23 0.57 0.09 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 268 233 55 1.28 0.12 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 395 242 69 1.65 0.11 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 640 317 76 1.90 0.08 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 400 873 263 78 2.10 0.08 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 60 101 5 0.02 0.06 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 84 132 10 0.19 0.10 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 108 153 18 0.39 0.16 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 156 187 25 0.82 0.31 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 268 232 44 1.32 0.45 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 395 242 79 1.67 0.38 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 640 269 82 2.16 0.37 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 200 1000 873 307 55 2.38 0.33 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 60 126 7 0.10 0.03 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 108 203 13 0.28 0.10 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 201 274 18 0.84 0.16 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 310 313 27 1.34 0.11 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 454 362 26 1.68 0.13 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 675 364 46 2.02 0.11 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 903 404 56 2.21 0.12 laboratory Geminigera cryophila (phytoplankton) 341616 https://www.marinespecies.org/aphia.php?p=taxdetails&id=341616 500 1000 1324 433 82 2.42 0.13