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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):
Ocean Acidification International Coordination Centre (OA-ICC)
Coverage:
Latitude: -32.335200 * Longitude: 18.308500
Event(s):
Elands_Bay * 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):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeRobinson, Tamara BStudy
2Species, unique identificationSpecies UIDRobinson, Tamara B
3Species, unique identification (URI)Species UID (URI)Robinson, Tamara B
4Species, unique identification (Semantic URI)Species UID (Semantic URI)Robinson, Tamara B
5Treatment: temperatureT:temp°CRobinson, Tamara B
6Experiment durationExp durationdaysRobinson, Tamara B
7Treatment: pHT:pHRobinson, Tamara B
8ReplicatesRepl#Robinson, Tamara B
9Prey selectivity indexPrey selectivity indexRobinson, Tamara Bchesson
10Prey selectivity index, standard deviationPrey selectivity index std dev±Robinson, Tamara Bchesson
11Prey selectivity index, standard errorPrey selectivity index std e±Robinson, Tamara B
12Confidence intervalCIRobinson, Tamara B95%
13Predation ratePred rate#/dayRobinson, Tamara B
14Energy contentE contkJ/#Robinson, Tamara B
15Temperature, waterTemp°CRobinson, Tamara B
16Temperature, water, standard errorT std e±Robinson, Tamara B
17pHpHRobinson, Tamara BPotentiometricNBS cale
18pH, standard errorpH std e±Robinson, Tamara BPotentiometricNBS cale
19Alkalinity, totalATµmol/kgRobinson, Tamara BPotentiometric titration
20Alkalinity, total, standard errorAT std e±Robinson, Tamara BPotentiometric titration
21Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmRobinson, Tamara BCalculated using CO2SYS
22Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard errorpCO2water_SST_wet std e±Robinson, Tamara BCalculated using CO2SYS
23SalinitySalRobinson, Tamara B
24Salinity, standard errorSal std e±Robinson, Tamara B
25Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
27Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
31Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
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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