Ocean acidification increases cadmium accumulation in marine bivalves: a potential threat to seafood safety ...

• Main Authors: Shi, Wei, Zhao, Xinguo, Han, Yu, Che, Zhumei, Chai, Xueliang, Liu, Guangxu
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Animalia; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Meretrix meretrix; Mollusca; Mytilus edulis; North Pacific; Other studied parameter or process; Single species; Tegillarca granosa; Temperate; Type; Species; Registration number of species; Uniform resource locator/link to reference; Tissues; Date; Treatment; Sample code/label; Cadmium; Cadmium, standard deviation; pH; pH, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Salinity; Salinity, standard deviation; Temperature, water; Temperature, water, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Calcite saturation state; Calcite saturation state, standard deviation; Mass; Mass, standard deviation; Gene expression; Gene expression, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Potentiometric; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.859567; https://doi.pangaea.de/10.1594/PANGAEA.859567

To date, the effects of ocean acidification on toxic metals accumulation and the underlying molecular mechanism remains unknown in marine bivalve species. In the present study, the effects of the realistic future ocean pCO2 levels on the cadmium (Cd) accumulation in the gills, mantle and adductor muscles of three bivalve species, Mytilus edulis, Tegillarca granosa, and Meretrix meretrix, were investigated. The results obtained suggested that all species tested accumulated significantly higher Cd (p<0.05) in the CO2 acidified seawater during the 30 days experiment and the health risk of Cd (based on the estimated target hazard quotients, THQ) via consumption of M. meretrix at pH 7.8 and 7.4 significantly increased 1.21 and 1.32 times respectively, suggesting a potential threat to seafood safety. The ocean acidification-induced increase in Cd accumulation may have occurred due to (i) the ocean acidification increased the concentration of Cd and the Cd2+/Ca2+ in the seawater, which in turn increased the Cd ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2016-04-14. ...