Seawater carbonate chemistry and shell growth rate and Vicker hardness of oyster Crassostrea hongkongensis ...

• Main Authors: Rajan, K, Meng, Yuan, Yu, Ziniu, Roberts, Steven B, Thiyagarajan, Vengatesen
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Animalia; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Crassostrea hongkongensis; Growth/Morphology; Laboratory experiment; Mollusca; North Pacific; Other studied parameter or process; Single species; Tropical; Type; Species; Registration number of species; Uniform resource locator/link to reference; Month; Treatment; Growth rate; Growth rate, standard deviation; Vickers Hardness; Vickers Hardness, standard deviation; pH; pH, standard deviation; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbon, inorganic, dissolved; Potentiometric; Potentiometric titration; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.943184; https://doi.pangaea.de/10.1594/PANGAEA.943184

Biomineralization is one of the key processes that is notably affected in marine calcifiers such as oysters under ocean acidification (OA). Understanding molecular changes in the biomineralization process under OA and its heritability, therefore, is key to developing conservation strategies for protecting ecologically and economically important oyster species. To do this, in this study, we have explicitly chosen the tissue involved in biomineralization (mantle) of an estuarine commercial oyster species, Crassostrea hongkongensis. The primary aim of this study is to understand the influence of DNA methylation over gene expression of mantle tissue under decreased pH 7.4, a proxy of OA, and to extrapolate if these molecular changes can be observed in the product of biomineralization—the shell. We grew early juvenile C. hongkongensis, under decreased pH 7.4 and control pH 8.0 over 4.5 months and studied OA-induced DNA methylation and gene expression patterns along with shell properties such as microstructure, ... : 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 2022-04-06. ...