Insights fromsodium into the impacts of elevated pCO2 and temperature on bivalve shell formation ...

• Main Authors: Zhao, Liqiang, Schöne, Bernd R, Mertz-Kraus, Regina, Yang, Feng
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: Animalia; Benthic animals; Benthos; Calcification/Dissolution; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Mollusca; Mytilus edulis; North Pacific; Patinopecten yessoensis; Single species; Temperate; Temperature; Event label; Type; Species; Registration number of species; Uniform resource locator/link to reference; Treatment; Growth rate; Growth rate, standard deviation; Sodium/Calcium ratio; Temperature, water; Temperature, water, standard error; Salinity; Salinity, standard error; pH, total scale; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Calcite saturation state; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Experiment; Potentiometric titration; Calculated using CO2SYS; 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.872396; https://doi.pangaea.de/10.1594/PANGAEA.872396

Ocean acidification and warming are predicted to affect the ability of marine bivalves to build their shells, but little is known about the underlying mechanisms. Shell formation is an extremely complex process requiring a detailed understanding of biomineralization processes. Sodium incorporation into the shells would increase if bivalves rely on the exchange of Na+/H+ to maintain homeostasis for shell formation, thereby shedding new light on the acid-base and ionic regulation at the calcifying front. Here, we investigated the combined effects of seawater pH (8.1, 7.7 and 7.4) and temperature (16 and 22 °C) on the growth and sodium composition of the shells of the blue mussel, Mytilus edulis, and the Yesso scallop, Patinopecten yessoensis. Exposure of M. edulis to low pH (7.7 and 7.4) caused a significant decrease of shell formation, whereas a 6 °C warming significantly depressed the rate of shell growth in P. yessoensis. On the other hand, while the amount of Na incorporated into the shells of P. ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 is 2017-02-16. ...