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Heinrich, Dennis D U; Watson, Sue-Ann; Rummer, Jodie L; Brandl, Simon J; Simpfendorfer, Colin A; Heupel, Michelle R; Munday, Philip L (2016): Foraging behaviour of the epaulette shark Hemiscyllium ocellatum is not affected by elevated CO2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.848868, Supplement to: Heinrich, DDU et al. (2015): Foraging behaviour of the epaulette shark Hemiscyllium ocellatum is not affected by elevated CO2. ICES Journal of Marine Science, https://doi.org/10.1093/icesjms/fsv085

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Abstract:
Increased oceanic uptake of atmospheric carbon dioxide (CO2) is a threat to marine organisms and ecosystems. Among the most dramatic consequences predicted to date are behavioural impairments in marine fish which appear to be caused by the interference of elevated CO2 with a key neurotransmitter receptor in the brain. In this study, we tested the effects of elevated CO2 on the foraging and shelter-seeking behaviours of the reef-dwelling epaulette shark, Hemiscyllium ocellatum. Juvenile sharks were exposed for 30 d to control CO2 (400 µatm) and two elevated CO2 treatments (615 and 910 µatm), consistent with medium- and high-end projections for ocean pCO2 by 2100. Contrary to the effects observed in teleosts and in some other sharks, behaviour of the epaulette shark was unaffected by elevated CO2. A potential explanation is the remarkable adaptation of H. ocellatum to low environmental oxygen conditions (hypoxia) and diel fluctuations in CO2 encountered in their shallow reef habitat. This ability translates into behavioural tolerance of near-future ocean acidification, suggesting that behavioural tolerance and subsequent adaptation to projected future CO2 levels might be possible in some other fish, if adaptation can keep pace with the rate of rising CO2 levels.
Keyword(s):
Animalia; Behaviour; Benthos; Chordata; Coast and continental shelf; Containers and aquaria (20-1000 L or < 1 m**2); Growth/Morphology; Hemiscyllium ocellatum; Laboratory experiment; Nekton; Single species; South Pacific; Tropical
Further details:
Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.6. https://cran.r-project.org/package=seacarb
Project(s):
Ocean Acidification International Coordination Centre (OA-ICC)
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 2015-08-17.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesMunday, Philip L
2FigureFigMunday, Philip L
3IdentificationIDMunday, Philip Lshark
4TreatmentTreatMunday, Philip L
5Fish, standard lengthFish SLmmMunday, Philip L
6Time in secondsTimesMunday, Philip Loutside Shelter
7Time, standard deviationTime std devMunday, Philip Loutside Shelter
8Time in secondsTimesMunday, Philip Llatency first bite
9Time, standard deviationTime std devMunday, Philip Llatency first bite
10Activity descriptionActivityMunday, Philip Lactivity shelter food (# of line crossings per min.)
11Activity, standard deviationAct std dev±Munday, Philip Lactivity shelter food (# of line crossings per min.)
12Activity descriptionActivityMunday, Philip Ltotal activity (# of line crossings per min.)
13Activity, standard deviationAct std dev±Munday, Philip Ltotal activity (# of line crossings per min.)
14Time in secondsTimesMunday, Philip Lreach shelter
15Activity descriptionActivityMunday, Philip L# of line crossings per min.
16Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmMunday, Philip LCalculated using CO2SYS
17pHpHMunday, Philip LPotentiometrictotal scale
18Temperature, waterTemp°CMunday, Philip L
19SalinitySalMunday, Philip L
20Alkalinity, totalATµmol/kgMunday, Philip LPotentiometric titration
21Carbonate system computation flagCSC flagYang, YanCalculated using seacarb after Nisumaa et al. (2010)
22Carbon dioxideCO2µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
23Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
24Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
25Bicarbonate ion[HCO3]-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
26Carbonate ion[CO3]2-µmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
27Carbon, inorganic, dissolvedDICµmol/kgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
28Aragonite saturation stateOmega ArgYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Calcite saturation stateOmega CalYang, YanCalculated using seacarb after Nisumaa et al. (2010)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1584 data points

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