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  • Alkalinity, total; Alkalinity, total, standard deviation; Antarctic; Aragonite saturation state; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Coulometric titration; Entire community; EXP; Experiment; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Maximum photochemical quantum yield of photosystem II; Maximum photochemical quantum yield of photosystem II, standard deviation; McMurdo_Sound_OA; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Polar; Potentiometric titration; Primary production/Photosynthesis; Salinity; Species; Temperature, water  (1)
  • Alkalinity, total; Aragonite saturation state; Automated segmented-flow analyzer (Quaatro); Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcification/Dissolution; Calcification rate of carbon per cell; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coulter Counter Z series (Beckman Coulter); Cumulative carbon fixation per cell; Description; Determination of phosphate (Murphy & Riley, 1962); Emiliania huxleyi; Emiliania huxleyi, diameter; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Light:Dark cycle; Maximum photochemical quantum yield of photosystem II; Metrohm Titrando titrator; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Organic carbon fixation per cell per hour; PAM (PhytoPAM, Phyto-ED Walz, PPAA0138); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Particulate inorganic carbon/particulate organic carbon ratio; Pelagos; pH; Phosphate; Phytoplankton; Primary production/Photosynthesis; Radiation, photosynthetically active; Salinity; see reference(s); Single species; Temperature, water; Total carbon fixation per cell per hour  (1)
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  • 1
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    Unknown
    The response of Antarctic sea ice algae to changes in pH and CO2 (2014)
    PANGAEA
    In:  Supplement to: McMinn, Andrew; Müller, Marius N; Martin, Andrew; Ryan, Ken G (2014): The Response of Antarctic Sea Ice Algae to Changes in pH and CO2. PLoS ONE, 9(1), e86984, https://doi.org/10.1371/journal.pone.0086984
    Details
    Publication Date: 2024-03-15
    Description: Ocean acidification substantially alters ocean carbon chemistry and hence pH but the effects on sea ice formation and the CO2 concentration in the enclosed brine channels are unknown. Microbial communities inhabiting sea ice ecosystems currently contribute 10-50% of the annual primary production of polar seas, supporting overwintering zooplankton species, especially Antarctic krill, and seeding spring phytoplankton blooms. Ocean acidification is occurring in all surface waters but the strongest effects will be experienced in polar ecosystems with significant effects on all trophic levels. Brine algae collected from McMurdo Sound (Antarctica) sea ice was incubated in situ under various carbonate chemistry conditions. The carbon chemistry was manipulated with acid, bicarbonate and bases to produce a pCO2 and pH range from 238 to 6066 µatm and 7.19 to 8.66, respectively. Elevated pCO2 positively affected the growth rate of the brine algal community, dominated by the unique ice dinoflagellate, Polarella glacialis. Growth rates were significantly reduced when pH dropped below 7.6. However, when the pH was held constant and the pCO2 increased, growth rates of the brine algae increased by more than 20% and showed no decline at pCO2 values more than five times current ambient levels. We suggest that projected increases in seawater pCO2, associated with OA, will not adversely impact brine algal communities.
    Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Antarctic; Aragonite saturation state; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Coulometric titration; Entire community; EXP; Experiment; Field experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Growth rate, standard deviation; Maximum photochemical quantum yield of photosystem II; Maximum photochemical quantum yield of photosystem II, standard deviation; McMurdo_Sound_OA; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Polar; Potentiometric titration; Primary production/Photosynthesis; Salinity; Species; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 747 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Seawater carbonate chemistry and processes during experiments with phytoplankton Emiliania huxleyi (strain Bergen 2005), 2010 (2010)
    PANGAEA
    In:  Supplement to: Barcelos e Ramos, Joana; Müller, Marius N; Riebesell, Ulf (2010): Short-term response of the coccolithophore Emiliania huxleyi to an abrupt change in seawater carbon dioxide concentrations. Biogeosciences, 7(1), 177-186, https://doi.org/10.5194/bg-7-177-2010
    Details
    Publication Date: 2024-03-15
    Description: The response of the coccolithophore Emiliania huxleyi to rising CO2 concentrations is well documented for acclimated cultures where cells are exposed to the CO2 treatments for several generations prior to the experiment. The exact number of generations required for acclimation to CO2-induced changes in seawater carbonate chemistry, however, is unknown. Here we show that Emiliania huxleyi's short-term response (26 h) after cultures (grown at 500 µatm) were abruptly exposed to changed CO2 concentrations (~190, 410, 800 and 1500 ?atm) is similar to that obtained with acclimated cultures under comparable conditions in earlier studies. Most importantly, from the lower CO2 levels (190 and 410 ?atm) to 750 and 1500 µatm calcification decreased and organic carbon fixation increased within the first 8 to 14 h after exposing the cultures to changes in carbonate chemistry. This suggests that Emiliania huxleyi rapidly alters the rates of essential metabolical processes in response to changes in seawater carbonate chemistry, establishing a new physiological "state" (acclimation) within a matter of hours. If this relatively rapid response applies to other phytoplankton species, it may simplify interpretation of studies with natural communities (e.g. mesocosm studies and ship-board incubations), where often it is not feasible to allow for a pre-conditioning phase before starting experimental incubations.
    Keywords: Alkalinity, total; Aragonite saturation state; Automated segmented-flow analyzer (Quaatro); Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcification/Dissolution; Calcification rate of carbon per cell; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Chromista; Coulter Counter Z series (Beckman Coulter); Cumulative carbon fixation per cell; Description; Determination of phosphate (Murphy & Riley, 1962); Emiliania huxleyi; Emiliania huxleyi, diameter; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; Experimental treatment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Light:Dark cycle; Maximum photochemical quantum yield of photosystem II; Metrohm Titrando titrator; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Organic carbon fixation per cell per hour; PAM (PhytoPAM, Phyto-ED Walz, PPAA0138); Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Particulate inorganic carbon/particulate organic carbon ratio; Pelagos; pH; Phosphate; Phytoplankton; Primary production/Photosynthesis; Radiation, photosynthetically active; Salinity; see reference(s); Single species; Temperature, water; Total carbon fixation per cell per hour
    Type: Dataset
    Format: text/tab-separated-values, 834 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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