Seawater carbonate chemistry and micromechanical properties of the mineralized cuticle in juvenile red and blue king crabs ...

• Main Authors: Coffey, William D, Nardone, Jessica A, Yarram, Aparna, Long, W Christopher, Swiney, Katherine M, Foy, Robert J, Dickinson, Gary H
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Animalia; Arthropoda; Benthic animals; Biomass/Abundance/Elemental composition; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Laboratory strains; Not applicable; Other studied parameter or process; Paralithodes camtschaticus; Paralithodes platypus; Single species; Temperature; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Sample number; Treatment; Location; Microhardness; Thickness; Carbon; Oxygen; Sodium; Magnesium; Silicon; Strontium; Phosphorus; Sulfur; Chlorine; Calcium; pH; pH, standard deviation; Temperature, water; Temperature, water, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Bicarbonate ion; Bicarbonate ion, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Calcite saturation state; Ocean acidification; Alaska
• Online Access: https://dx.doi.org/10.1594/pangaea.958450; https://doi.pangaea.de/10.1594/PANGAEA.958450

Ocean acidification (OA) adversely affects a broad range of marine calcifying organisms. Crustaceans, however, exhibit mixed responses to OA, with growth or survival negatively affected in some species, but unaffected or positively affected in others. In crustaceans, the mineralized cuticle resists mechanical loads, provides protection from the environment, and enables mobility, but little is known about how OA or interactions between OA and temperature affect its structure or function. Here, the effects of OA on the mechanics, structure, and composition of the cuticle in two Alaska king crab species was assessed. Juvenile blue king crabs (Paralithodes platypus) were exposed for a year to three pH levels, 8.1 (ambient), 7.8 and 7.5. Juvenile red king crabs (Paralithodes camtschaticus) were exposed for ~ 6 months to two pH levels, 8.0 and 7.8, at three temperatures: ambient, ambient + 2 °C, and ambient + 4 °C. Cuticle microhardness (a measure of resistance to permanent or plastic mechanical deformation), ... : 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 2023-05-04. ...