Seawater carbonate chemistry and antagonistic effects of three strains of the dinoflagellate HAB species Alexandrium catenella on three target species

• Main Authors: Leitão, Ewaldo, Castellanos, Diana F, Park, Gihong, Dam, Hans G
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Abundance; Alexandrium catenella; Alkalinity; total; standard deviation; Aragonite saturation state; Bacillariophyta; 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; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Cell density; Chlorophyta; Chromista; Confidence interval; Cryptophyta; Difference; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Laboratory experiment; Laboratory strains; Myzozoa; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Phytoplankton; Potentiometric; Potentiometric titration; Replicate; Rhodomonas salina; Salinity; Species; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.968460; https://doi.org/10.1594/PANGAEA.968460

We tested the antagonistic effects of three strains of the dinoflagellate HAB species Alexandrium catenella on three target species (the chlorophyte Tetraselmis sp., the cryptomonad Rhodomonas salina, and the diatom Thalassiosira weissflogii) at various biomass ratios between species, at ambient (16 ◦C and 400 μatm CO2) and OWA (20 ◦C and 2000 μatm CO2) conditions. In these experiments the Alexandrium strains had been raised under OWA conditions for ~100 generations. All three non-HAB species increased their growth rate under OWA relative to ambient conditions. This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were downloaded from the Zenodo (see Source). In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) 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 2024-05-13.