Experiment: Influence of CO2 and nitrogen limitation on the coccolith volume of Emiliania huxleyi (Haptophyta) ...

• Main Author: Müller, Marius N
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Chromista; Emiliania huxleyi; Gene expression incl. proteomics; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Macro-nutrients; North Atlantic; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; Species; Experimental treatment; Experiment; Description; Code; Carbon, inorganic, dissolved; Standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon dioxide, partial pressure; Carbon dioxide, partial pressure, standard deviation; pH; pH, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Cell density; Cell density, standard deviation; Growth rate; Growth rate, standard deviation; Carbon, inorganic, particulate, production per cell; Particulate inorganic carbon, production, standard deviation; Carbon, organic, particulate, production per cell; Particulate organic carbon, production, standard deviation; -; Phosphorus, organic, particulate, production per cell; Particulate inorganic carbon/particulate organic carbon ratio; Particulate inorganic carbon/particulate organic carbon ratio, standard deviation; Carbon, organic, particulate/Nitrogen, particulate ratio; Carbon, organic, particulate/Phosphorus, organic, particulate ratio; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.829376; https://doi.pangaea.de/10.1594/PANGAEA.829376

Coccolithophores, a key phytoplankton group, are one of the most studied organisms regarding their physiological response to ocean acidification/carbonation. The biogenic production of calcareous coccoliths has made coccolithophores a promising group for paleoceanographic research aiming to reconstruct past environmental conditions. Recently, geochemical and morphological analyses of fossil coccoliths have gained increased interest in regard to changes in seawater carbonate chemistry. The cosmopolitan coccolithophore Emiliania huxleyi (Lohm.) Hay and Mohler was cultured over a range of pCO2 levels in controlled laboratory experiments under nutrient replete and nitrogen limited conditions. Measurements of photosynthesis and calcification revealed, as previously published, an increase in particulate organic carbon production and a moderate decrease in calcification from ambient to elevated pCO2. The enhancement in particulate organic carbon production was accompanied by an increase in cell diameter. Changes in ... : 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). The date of carbonate chemistry calculation by seacarb is 2014-02-11. ...