Seawater carbonate chemistry and biomechanical characterization of scallop shells ...

• Main Authors: Abarca-Ortega, Aldo, Muñoz-Moya, Estefano, Alarcón, Matías Pacheco, García-Herrera, Claudio M, Celentano, Diego J, Lagos, Nelson A, Lardies, Marco A
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Animalia; Argopecten purpuratus; Benthic animals; Benthos; Coast and continental shelf; Laboratory experiment; Mollusca; Other studied parameter or process; Single species; South Pacific; Temperate; Temperature; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Treatment; Orientation; Strain; Engineering stress; Apparent elastic modulus; Displacement; Force; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Calcite saturation state; Calcite 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; 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.945534; https://doi.pangaea.de/10.1594/PANGAEA.945534

Increased carbon dioxide levels (CO2) in the atmosphere triggered a cascade of physical and chemical changes in the ocean surface. Marine organisms producing carbonate shells are regarded as vulnerable to these physical (warming), and chemical (acidification) changes occurring in the oceans. In the last decade, the aquaculture production of the bivalve scallop Argopecten purpuratus (AP) showed declined trends along the Chilean coast. These negative trends have been ascribed to ecophysiological and biomineralization constraints in shell carbonate production. This work experimentally characterizes the biomechanical response of AP scallop shells subjected to climate change scenarios (acidification and warming) via quasi-static tensile and bending tests. The experimental results indicate the adaptation of mechanical properties to hostile growth scenarios in terms of temperature and water acidification. In addition, the mechanical response of the AP subjected to control climate conditions was analyzed with finite ... : 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 2022-06-20. ...