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Li, Lisha; Lu, Weiqun; Sui, Yanming; Wang, Youji; Gul, Yasmeen; Dupont, Sam (2016): Conflicting effects of predator cue and ocean acidification on the mussel Mytilus coruscus byssus production. PANGAEA, https://doi.org/10.1594/PANGAEA.860435, Supplement to: Li, L et al. (2015): Conflicting effects of predator cue and ocean acidification on the mussel Mytilus coruscus byssus production. Journal of Shellfish Research, 34(2), 393-400, https://doi.org/10.2983/035.034.0222

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Abstract:
Understanding the impact of ocean acidification and warming on communities and ecosystems is a researcher priority. This can only be achieved through a combination of experimental and field approaches that would allow developing a mechanistic understanding of impacts across level of biological organizations. Surprisingly, most published studies are still focusing on single species responses with little consideration for interspecific interactions. In this study, the impacts of a 3 days exposure to three parameters (temperature, pH, and presence/absence of the predator cue of the crab Charybdis japonica) and their interactions on an ecologically important endpoint were evaluated: the byssus production of the mussel Mytilus coruscus. Tested temperatures (25°C and 30°C) were within the present range of natural variability whereas pH (8.1, 7.7, and 7.4) covered present as well as near-future natural variability. As expected, the presence of the crab cue induced an antipredator response in Mytilus coruscus (significant 10% increase in byssus secretion rate, 22% increase in frequency of shed byssus, and 30% longer byssus). Decreased pH but not temperature had a significant negative impact on the same endpoints (up to a 17% decrease in byssus secretion rate, 40% decrease in frequency of shed byssus, and 10% shorter byssus at pH 7.3 as compared with pH 8.1) with no significant interactions between the three tested parameters. In this study, it has been hypothesized that pH and predator cue have different modes of action and lead to conflicting functional responses (escape response versus stronger attachment). Functional consequences for ecosystem dynamics still need to be investigated.
Keyword(s):
Animalia; Behaviour; Benthic animals; Benthos; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Other; Single species; Temperate; Temperature
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb
Comment:
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2015) 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 2016-05-06.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeWang, Youjistudy
2SpeciesSpeciesWang, Youji
3Registration number of speciesReg spec noWang, Youji
4Uniform resource locator/link to referenceURL refWang, YoujiWoRMS Aphia ID
5TreatmentTreatWang, Youji
6Temperature, waterTemp°CWang, Youji
7TreatmentTreatWang, Youji
8Numbern#Wang, Youjithe number of the byssus thread
9Time in hoursTimehWang, Youji
10FrequencyFrequency#Wang, Youjistalk shedding
11LengthlmmWang, Youjibyssus thread
12DiameterØmmWang, Youjibyssus thread
13ReplicateReplicateWang, Youji
14Secretion rate, per individualSecr rate/ind#/#/dayWang, Youjiattached byssus
15SalinitySalWang, Youji
16Salinity, standard errorSal std e±Wang, Youji
17pHpHWang, YoujiPotentiometricNBS scale
18pH, standard errorpH std e±Wang, YoujiPotentiometricNBS scale
19Temperature, waterTemp°CWang, Youji
20Temperature, water, standard errorT std e±Wang, Youji
21Alkalinity, totalATµmol/kgWang, YoujiPotentiometric titration
22Alkalinity, total, standard errorAT std e±Wang, YoujiPotentiometric titration
23Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmWang, YoujiCalculated using CO2SYS
24Partial pressure of carbon dioxide (water) at sea surface temperature (wet air), standard errorpCO2water_SST_wet std e±Wang, YoujiCalculated using CO2SYS
25Calcite saturation stateOmega CalWang, YoujiCalculated using CO2SYS
26Calcite saturation state, standard errorOmega Cal std e±Wang, YoujiCalculated using CO2SYS
27Aragonite saturation stateOmega ArgWang, YoujiCalculated using CO2SYS
28Aragonite saturation state, standard errorOmega Arg std e±Wang, YoujiCalculated using CO2SYS
29Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
30pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
31Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
32Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
33Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
35Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
94968 data points

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