Seawater carbonate chemistry and elemental composition of a southern hemisphere strain of coccolithophore Emiliania huxleyi ...

• Main Authors: Feng, Yuanyuan, Roleda, Michael Y, Armstrong, Evelyn, Law, Cliff S, Boyd, Philip W, Hurd, Catriona L
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Not applicable; Pelagos; Phytoplankton; Single species; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Phosphate; Nitrate; Irradiance; Temperature, water; Carbon dioxide, partial pressure; Growth rate; Carbon, organic, particulate, per cell; Carbon, organic, particulate, standard deviation; Carbon, inorganic, particulate, per cell; Particulate inorganic carbon per cell, standard deviation; Particulate inorganic carbon/particulate organic carbon ratio; Particulate inorganic carbon/particulate organic carbon ratio, standard deviation; Particulate organic nitrogen per cell; Nitrogen, organic, particulate, per cell, standard deviation; Phosphorus, organic, particulate, per cell; Phosphorus, organic, particulate, per cell, standard deviation; Carbon, organic, particulate/chlorophyll a ratio; Carbon, organic, particulate/chlorophyll a ratio, standard deviation; Salinity; pH; pH, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Calcite saturation state; Ocean acidification; Southern Ocean
• Online Access: https://dx.doi.org/10.1594/pangaea.885410; https://doi.pangaea.de/10.1594/PANGAEA.885410

A series of semi-continuous incubation experiments were conducted with the coccolithophore Emiliania huxleyi strain NIWA1108 (Southern Ocean isolate) to examine the effects of five environmental drivers (nitrate concentration, phosphate concentration, irradiance, temperature and pCO2) on both the physiological rates and elemental composition. Here, we report the alteration of the elemental composition of E. huxleyi in response to the changes in these environmental drivers. A series of dose response curves for the cellular elemental composition of E. huxleyi were fitted for each of the five drivers across an environmentally-representative gradient. The importance of each driver in regulating the elemental composition of E. huxleyi was ranked using a semi-quantitative approach. The percentage variation in elemental composition arising from the change in each driver between present day and model-projected conditions for the year 2100 were calculated. Temperature was the most important driver controlling both ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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). The date of carbonate chemistry calculation by seacarb is 2018-01-23. ...