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Sui, Yanming; Hu, Menghong; Huang, Xizhi; Wang, Youji; Lu, Weiqun (2017): Anti-predatory responses of the thick shell mussel Mytilus coruscus exposed to seawater acidification and hypoxia. PANGAEA, https://doi.org/10.1594/PANGAEA.872395, Supplement to: Sui, Y et al. (2015): Anti-predatory responses of the thick shell mussel Mytilus coruscus exposed to seawater acidification and hypoxia. Marine Environmental Research, 109, 159-167, https://doi.org/10.1016/j.marenvres.2015.07.008

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Abstract:
Ocean acidification and hypoxia, both caused by anthropogenic activities, have showed deleterious impacts on marine animals. However, their combined effect on the mussel's defence to its predator has been poorly understood, which hinders us to understand the prey-predator interaction in marine environment. The thick shell mussel Mytilus coruscus and its predator, the Asian paddle crab Charybdis japonica were exposed to three pH levels (7.3, 7.7, 8.1) at two concentrations of dissolved oxygen (2.0 mg/L, 6.0 mg/L) seawater. The anti-predatory responses of mussels, in terms of byssus thread production were analysed after 72 h exposure. During the experiment, frequency of shedding stalks (mussels shed their byssal stalks to release themselves from attachment and allow locomotion) and number of byssus threads increased with time, were significantly reduced by hypoxia and low pH levels, and some interactions among time, predator, DO and pH were observed. As expected, the presence of the crab induced an anti-predator response in M. coruscus (significant increases in most tested parameters except the byssus thread length). Acidification and hypoxia significantly reduced byssus thread diamter at the end of the experiment, but not the byssus thread length. Cumulative byssus thread length and volume were significantly impaired by hypoxia and acidification. Our results highlight the significance of anti-predatory responses for adult mussel M. coruscus even under a stressful environment in which stress occurs through ocean acidification and hypoxia. By decreasing the strength of byssus attachment, the chance of being dislodged and consumed by crabs is likely increased. Our data suggest that there are changes in byssus production induced by hypoxia and acidification, which may affect predation rates on M. coruscus in the field.
Keyword(s):
Animalia; Behaviour; Benthic animals; Benthos; Brackish waters; Containers and aquaria (20- 1000 L or < 1 m**2); Growth/Morphology; Laboratory experiment; Mollusca; Mytilus coruscus; North Pacific; Oxygen; Single species; Temperate
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise; Orr, James C; Gentili, Bernard; Proye, Aurélien; Soetaert, Karline; Rae, James (2016): seacarb: seawater carbonate chemistry with R. R package version 3.1. https://cran.r-project.org/package=seacarb
Coverage:
Latitude: 30.550260 * Longitude: 121.833270
Date/Time Start: 2015-04-01T00:00:00 * Date/Time End: 2015-04-30T00:00:00
Event(s):
Shengsi_island_OA * Latitude: 30.550260 * Longitude: 121.833270 * Date/Time Start: 2015-04-01T00:00:00 * Date/Time End: 2015-04-30T00:00:00 * Method/Device: Experiment (EXP)
Comment:
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 2017-02-16.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1TypeTypeSui, Yanmingstudy
2SpeciesSpeciesSui, Yanming
3Registration number of speciesReg spec noSui, Yanming
4Uniform resource locator/link to referenceURL refSui, YanmingWoRMS Aphia ID
5TreatmentTreatSui, Yanming
6TreatmentTreatSui, Yanming
7DiameterØmmSui, Yanmingbyssus thread
8LengthlmmSui, Yanmingbyssus thread
9Byssus thread numberByssus thread#Sui, Yanming
10LengthlmmSui, Yanmingcumulative byssus thread length
11Total countsTotal counts#Sui, Yanmingshedding stalks
12Time in hoursTimehSui, Yanming
13Byssus thread numberByssus thread#Sui, Yanming
14Byssus thread number, standard deviationByssus thread std dev±Sui, Yanming
15FrequencyFrequencySui, Yanmingshedding stalks
16Frequency, standard deviationFreq std dev±Sui, Yanmingshedding stalks
17OxygenO2µmol/lSui, Yanmingdissovled oxygen
18Oxygen, standard deviationO2 std dev±Sui, Yanmingdissovled oxygen
19SalinitySalSui, Yanming
20Salinity, standard deviationSal std dev±Sui, Yanming
21pHpHSui, YanmingPotentiometricNBS scale
22pH, standard deviationpH std dev±Sui, YanmingPotentiometricNBS scale
23Temperature, waterTemp°CSui, Yanming
24Temperature, water, standard deviationTemp std dev±Sui, Yanming
25Alkalinity, totalATµmol/kgSui, YanmingPotentiometric titration
26Alkalinity, total, standard deviationAT std dev±Sui, YanmingPotentiometric titration
27Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmSui, YanmingCalculated using CO2SYS
28Partial pressure of carbon dioxide, standard deviationpCO2 std dev±Sui, YanmingCalculated using CO2SYS
29Calcite saturation stateOmega CalSui, YanmingCalculated using CO2SYS
30Calcite saturation state, standard deviationOmega Cal std dev±Sui, YanmingCalculated using CO2SYS
31Aragonite saturation stateOmega ArgSui, YanmingCalculated using CO2SYS
32Aragonite saturation state, standard deviationOmega Arg std dev±Sui, YanmingCalculated using CO2SYS
33Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
34pHpHYang, YanCalculated using seacarb after Nisumaa et al. (2010)total scale
35Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
36Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
37Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
38Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
39Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
40Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
41Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
42Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
Size:
7212 data points

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