Ocean acidification and increased temperature have both positive and negative effects on early ontogenetic traits of a rocky shore keystone predator species ...

• Main Authors: Manríquez, Patricio H, Jara, María Elisa, Seguel, Mylene E, Torres, Rodrigo, Alarcon, Emilio, Lee, Matthew R, Dam, H G
• Format: Dataset
• Language: English
• Published: PANGAEA 2016
• Subjects: Animalia; Benthic animals; Benthos; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Coast and continental shelf; Concholepas concholepas; Growth/Morphology; Laboratory experiment; Mollusca; Other studied parameter or process; Respiration; Single species; South Pacific; Temperate; Temperature; Type; Species; Registration number of species; Uniform resource locator/link to reference; Temperature, water; Partial pressure of carbon dioxide water at sea surface temperature wet air; Calcification rate; Growth rate; Metabolic rate of oxygen; Tenacity index; Time in minutes; Thickness, size normalized; Temperature, water, standard error; pH; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Carbonate ion; Carbonate ion, standard error; Salinity; Salinity, standard error; Calcite saturation state; Calcite saturation state, standard error; Aragonite saturation state; Aragonite saturation state, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbon, inorganic, dissolved; Experiment; Potentiometric; Potentiometric titration; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.869291; https://doi.pangaea.de/10.1594/PANGAEA.869291

The combined effect of ocean acidification and warming is expected to have significant effects on several traits of marine organisms. The gastropod Concholepas concholepas is a rocky shore keystone predator characteristic of the south-eastern Pacific coast of South America and an important natural resource exploited by small-scale artisanal fishermen along the coast of Chile and Peru. In this study, we used small juveniles of C. concholepas collected from the rocky intertidal habitats of southern Chile (39°S) to evaluate under laboratory conditions the potential consequences of projected near-future levels of ocean acidification and warming for important early ontogenetic traits. The individuals were exposed long-term (5.8 months) to contrasting pCO2 (ca. 500 and 1400 µatm) and temperature (15 and 19°C) levels. After this period we compared body growth traits, dislodgement resistance, predator-escape response, self-righting and metabolic rates. With respect to these traits there was no evidence of a ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 is 2016-11-30. ...