Martin, N; Clusella-Trullas, Susana; Robinson, Tamara B (2022): Seawater carbonate chemistry and prey choice of the girdled dogwhelk Trochia cingulata [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945428
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Abstract:
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 warming. In the remaining treatments whelks preferred S. algosus irrespective of the levels of seawater cooling or acidification. These results align with previous work that demonstrated a preference by T. cingulata for S. algosus and suggest that the predator–prey relationship between this whelk and its mussel prey is unlikely to be disrupted under future marine conditions.
Keyword(s):
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
Supplement to:
Martin, N; Clusella-Trullas, Susana; Robinson, Tamara B (2022): Predicted future changes in ocean temperature and pH do not affect prey selection by the girdled dogwhelk Trochia cingulata. African Journal of Marine Science, 44(1), 1-9, https://doi.org/10.2989/1814232X.2022.2028674
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James (2021): seacarb: seawater carbonate chemistry with R. R package version 3.2.16. https://cran.r-project.org/web/packages/seacarb/index.html
Project(s):
Coverage:
Latitude: -32.335200 * Longitude: 18.308500
Comment:
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.
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
16764 data points
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