Seawater carbonate chemistry and the bioerosion rates of two reef-dwelling Caribbean sponges ...

• Main Authors: Morris, John, Enochs, I C, Webb, Alice, de Bakker, Didier, Soderberg, Nash, Kolodziej, Graham, Manzello, Derek P
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Animalia; Benthic animals; Benthos; Calcification/Dissolution; Cliona varians; Cliothosa delitrix; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; North Atlantic; Other; Porifera; Single species; Temperate; Type; Identification; Treatment; Site; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Colony number/ID; Sample ID; Diameter; Height; Buoyant mass; Temperature, water; Salinity; Mass; Temperature, water, standard deviation; Salinity, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, 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; Carbonate system computation flag; pH; pH, standard deviation; Carbon dioxide; Carbon dioxide, standard deviation; Fugacity of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide in seawater, standard deviation; Bicarbonate ion; Bicarbonate, standard deviation; Carbonate ion; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.953754; https://doi.pangaea.de/10.1594/PANGAEA.953754

Ocean acidification (OA) is expected to modify the structure and function of coral reef ecosystems by reducing calcification, increasing bioerosion, and altering the physiology of many marine organisms. Much of our understanding of these relationships is based upon experiments with static OA treatments, though evidence suggests that the magnitude of diurnal fluctuations in carbonate chemistry may modulate the calcification response to OA. These light-mediated swings in seawater pH are projected to become more extreme with OA, yet their impact on bioerosion remains unknown. We evaluated the influence of diurnal carbonate chemistry variability on the bioerosion rates of two Caribbean sponges: the zooxanthellate Cliona varians and azooxanthellate Cliothosa delitrix. Replicate fragments from multiple colonies of each species were exposed to four precisely-controlled pH treatments: contemporary static (8.05 ± 0.00; mean pH ± diurnal pH oscillation), contemporary variable (8.05 ± 0.10), future OA static (7.80 ± ... : 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 2023-01-06. ...