Seawater carbonate chemistry and prey choice of the girdled dogwhelk Trochia cingulata ...

• Main Authors: Martin, N, Clusella-Trullas, Susana, Robinson, Tamara B
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Animalia; Aulacomya atra; Behaviour; Benthic animals; Benthos; Choromytilus meridionalis; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Mollusca; Other studied parameter or process; Semimytilus algosus; South Atlantic; Species interaction; Temperate; Temperature; Trochia cingulata; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Treatment temperature; Experiment duration; Treatment pH; Replicates; Prey selectivity index; Prey selectivity index, standard deviation; Prey selectivity index, standard error; Confidence interval; Predation rate; Energy content; Temperature, water; 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; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Salinity; Salinity, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Aragonite saturation state; Calcite saturation state; Potentiometric; Ocean acidification; Dogwhelk
• Online Access: https://dx.doi.org/10.1594/pangaea.945428; https://doi.pangaea.de/10.1594/PANGAEA.945428

Predator–prey relationships can drive community dynamics in marine systems, but it remains unclear how future changes in seawater temperatures and pH will influence these relationships. This study assessed the effect of predicted future temperatures and pH on the prey choice of the girdled dogwhelk Trochia cingulata (family Muricidae) when offered native (Aulacomya atra, Choromytilus meridionalis) and alien (Semimytilus algosus) mussels. Whelks were exposed to three pH levels: 8.0 (current), 7.7 (intermediate) and 7.5 (extreme), at each of three temperatures: 9 °C (cooling), 13 °C (current) and 17 °C (warming) for 6 weeks. Thereafter, the prey preference and predation rate were compared among treatments. Within two weeks, 98% of whelks exposed to warming died, precluding assessment of how warming affects their prey preference. Despite high mortality, the highest predation rates were recorded at 17 °C regardless of the pH level, likely reflecting increased energy costs and ingestion rates associated with ... : 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 2022-06-15. ...