Seawater carbonate chemistry and Pseudo-nitzschia australis growth and toxicity

• Main Authors: Kelly, Kyla J, Mansour, Amjad, Liang, Chen, Kim, Andrew M, Mancini, Lily A, Bertin, Matthew J, Jenkins, Bethany D, Hutchins, David A, Fu, Feixue
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Alkalinity; total; 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; Chromista; Domoic acid per cell; Domoic acid production per particulate organic carbon; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Growth rate; Immunology/Self-protection; Laboratory experiment; Laboratory strains; Macro-nutrients; Net primary production of carbon per particulate organic carbon; Net primary production of carbon per particulate organic nitrogen; Not applicable; OA-ICC; Ocean Acidification International Coordination Centre; Other studied parameter or process; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Particulate domoic acid per particulate organic carbon; Pelagos; pH; Phytoplankton; Primary production/Photosynthesis; Pseudo-nitzschia australis; Replicate; Salinity; Single species; Species; unique identification; unique identification (Semantic URI); unique identification (URI); Temperature; water; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.967107; https://doi.org/10.1594/PANGAEA.967107

To gain a better understanding of what drives Pseudo-nitzschia australis growth and toxicity during upwelling and marine heatwave events, multiple-driver scenario or 'cluster' experiments were conducted using temperature, pCO2, and nutrient levels reflecting conditions during upwelling (13 ◦C, 900 ppm pCO2, replete nutrients) and two intensities of marine heatwaves (19 ◦C or 20.5 ◦C, 250 ppm pCO2, reduced macronutrients). We also conducted single-driver experiments to gain a mechanistic understanding of which drivers most impact P. australis growth and toxicity.