Seawater carbonate chemistry and elemental contents and macromolecules of the coccolithophore Emiliania huxleyi ...

• Main Authors: Xie, Emei, Xu, Kai, Li, Zhengke, Li, Wei, Yi, Xiangqi, Li, Hongzhou, Han, Yonghe, Zhang, Hong, Zhang, Yong
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Chromista; Emiliania huxleyi; Growth/Morphology; Haptophyta; Laboratory experiment; Laboratory strains; Not applicable; Other; Pelagos; Phytoplankton; Primary production/Photosynthesis; Single species; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Treatment; Growth rate; Growth rate, standard deviation; Chlorophyll a per cell; Chlorophyll a, standard deviation; Carotenoids per cell; Carotenoids, standard deviation; Carotenoids/Chlorophyll a ratio; Carotenoids/Chlorophyll a ratio, standard deviation; Maximal electron transport rate, relative; Maximal electron transport rate, relative, standard deviation; Light use efficiency; Light use efficiency, standard deviation; Light saturation point; Light saturation point, standard deviation; Carbon, inorganic, particulate, per cell; Carbon, inorganic, particulate, standard deviation; Carbon, organic, particulate, per cell; Carbon, organic, particulate, standard deviation; Nitrogen, organic, particulate, per cell; Nitrogen, organic, particulate, standard deviation; Particulate inorganic carbon/particulate organic carbon ratio; Particulate inorganic carbon/particulate organic carbon ratio, standard deviation; Carbon, organic, particulate/Nitrogen, organic, particulate ratio; Carbon, organic, particulate/Nitrogen, organic, particulate ratio, standard deviation; Protein per cell; Proteins, standard deviation; Carbohydrates, per cell; Carbohydrates, total, standard deviation; Carbon, organic, particulate; Nitrogen, organic, particulate; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.943450; https://doi.pangaea.de/10.1594/PANGAEA.943450

Elemental contents change with shifts in macromolecular composition of marine phytoplankton. Recent studies focus on the responses of elemental contents of coccolithophores, a major calcifying phytoplankton group, to changing carbonate chemistry, caused by the dissolution of anthropogenically derived CO2 into the surface ocean. However, the effects of changing carbonate chemistry on biomacromolecules, such as protein and carbohydrate of coccolithophores, are less documented. Here, we disentangled the effects of elevated dissolved inorganic carbon (DIC) concentration (900 to 4,930μmol/kg) and reduced pH value (8.04 to 7.70) on physiological rates, elemental contents, and macromolecules of the coccolithophore Emiliania huxleyi. Compared to present DIC concentration and pH value, combinations of high DIC concentration and low pH value (ocean acidification) significantly increased pigments content, particulate organic carbon (POC), and carbohydrate content and had less impact on growth rate, maximal relative ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2022-04-22. ...