Seawater carbonate chemistry and larval shell development and growth of marine bivalve

• Main Authors: Waldbusser, George G, Hales, Burke, Langdon, Chris, Haley, Brian A, Schrader, Paul, Brunner, Elizabeth L, Gray, Matthew W, Miller, Cale A, Gimenez, Iria
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2015
• Subjects: Animalia; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Crassostrea gigas; Development; Growth/Morphology; Laboratory experiment; Mollusca; Mytilus galloprovincialis; North Pacific; Pelagos; Single species; Temperate; Zooplankton; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment; Treatment; Alkalinity, total; Carbon, inorganic, dissolved; Bicarbonate ion; Carbonate ion; Partial pressure of carbon dioxide water at sea surface temperature wet air; pH; Aragonite saturation state; Proportion; Shell length; Proportion, standard deviation; Shell length, standard deviation; Temperature, water; Salinity; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.934173; https://doi.pangaea.de/10.1594/PANGAEA.934173

Ocean acidification results in co-varying inorganic carbon system variables. Of these, an explicit focus on pH and organismal acid–base regulation has failed to distinguish the mechanism of failure in highly sensitive bivalve larvae. With unique chemical manipulations of seawater we show definitively that larval shell development and growth are dependent on seawater saturation state, and not on carbon dioxide partial pressure or pH. Although other physiological processes are affected by pH, mineral saturation state thresholds will be crossed decades to centuries ahead of pH thresholds owing to nonlinear changes in the carbonate system variables as carbon dioxide is added. Our findings were repeatable for two species of bivalve larvae could resolve discrepancies in experimental results, are consistent with a previous model of ocean acidification impacts due to rapid calcification in bivalve larvae, and suggest a fundamental ocean acidification bottleneck at early life-history for some marine keystone species. : 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 2021-07-28.