Seawater carbonate chemistry and exoskeletal properties in post-terminal-molt female snow crab Chionoecetes opilio ...

• Main Authors: Algayer, Tait, Mahmoud, Ahmed, Saksena, Sanjana, Long, W Christopher, Swiney, Katherine M, Foy, Robert J, Steffel, Brittan V, Smith, Kathryn E, Aronson, Richard B, Dickinson, Gary H
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Arthropoda; Benthic animals; Benthos; Biomass/Abundance/Elemental composition; Chionecetes opilio; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; North Pacific; Other studied parameter or process; Polar; Single species; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Position; Identification; Treatment: pH; Thickness; Comment; Vickers Hardness; Calcium; Magnesium; Strontium; Salinity; Temperature, water; Alkalinity, total; Carbon, inorganic, dissolved; Carbonate system computation flag; pH; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Chionoecetes opilio; Ocean acidification; Snow crab
• Online Access: https://dx.doi.org/10.1594/pangaea.963705; https://doi.pangaea.de/10.1594/PANGAEA.963705

We examined the effect of long-term (2 year) exposure to decreased seawater pH (7.8 and 7.5, PCO2 ~ 760 and 1550 µatm, respectively) on exoskeletal properties in post-terminal-molt female Chionoecetes opilio. Since the effects of OA vary among body regions in decapods, exoskeletal properties (microhardness, thickness, and elemental composition) were measured in five body regions: the carapace, both claws, and both third walking legs. ... : 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 2023-10-12. ...