Seawater carbonate chemistry and biomineralization pathways and shell material properties of Magallana gigas and Mytilus spp. ...

• Main Authors: Mele, Isabella, McGill, Rona A R, Thompson, J, Fennell, James, Fitzer, Susan C
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Growth/Morphology; Laboratory experiment; Laboratory strains; Magallana gigas; Mytilus spp.; Not applicable; Other; Other studied parameter or process; Single species; Temperature; Type of study; Species; Treatment; Mass; Shell length; Shell width; Shell thickness; Shell thickness index; Diagonal length; Vickers Hardness; Vickers hardness; Treatment pH; Treatment temperature; Identification; δ13C; δ15N; δ13C, calcite; δ18O, calcite; δ13C, aragonite; δ18O, aragonite; Cell density; Temperature, water; Temperature, water, standard deviation; pH; pH, standard deviation; Salinity; Salinity, standard deviation; δ13C, dissolved inorganic carbon; Partial pressure of carbon dioxide water at sea surface temperature wet air; Replicate; Carbon, inorganic, dissolved; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.960043; https://doi.pangaea.de/10.1594/PANGAEA.960043

Molluscs are among the organisms affected by ocean acidification (OA), relying on carbon for shell biomineralization. Metabolic and environmental sourcing are two pathways potentially affected by OA, but the circumstances and patterns by which they are altered are poorly understood. From previous studies, mollusc shells grown under OA appear smaller in size, brittle and thinner, suggesting an important alteration in carbon sequestration. However, supplementary feeding experiments have shown promising results in offsetting the negative consequences of OA on shell growth. Our study compared carbon uptake by δ13C tracing and deposition into mantle tissue and shell layers in Magallana gigas and Mytilus species, two economically valuable and common species. After subjecting the species to 7.7 pH, +2 °C seawater, and enhanced feeding, both species maintain shell growth and metabolic pathways under OA without benefitting from extra feeding, thus, showing effective acclimation to rapid and short-term environmental ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-06-26. ...