Keywords: Alkalinity, total; Alkalinity, total, standard deviation; Anguilla anguilla; Animalia; Aragonite saturation state; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Chordata; Coast and continental shelf; Development; Eggs, diameter; Eggs, diameter, standard deviation; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Gene expression; Gene expression, standard deviation; Gene expression (incl. proteomics); Identification; Irregular cleavages; Irregular cleavages, standard deviation; Laboratory experiment; Mortality/Survival; Nekton; North Atlantic; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; Perivitelline space size; Perivitelline space size, standard deviation; pH; pH, standard deviation; Potentiometric; Potentiometric titration; Reproduction; Salinity; Salinity, standard deviation; Single species; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Survival; Survival rate, standard deviation; Temperate; Temperature, water; Temperature, water, standard deviation; Time in hours; Treatment; Type