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Fitzer, Susan C; Caldwell, Gary S; Close, Andrew J; Clare, Anthony S; Upstill-Goddard, Robert C; Bentley, Matthew G (2012): Ocean acidification induces multi-generational decline in copepod naupliar production with possible conflict for reproductive resource allocation [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.831728, Supplement to: Fitzer, SC et al. (2012): Ocean acidification induces multi-generational decline in copepod naupliar production with possible conflict for reproductive resource allocation. Journal of Experimental Marine Biology and Ecology, 418-419, 30-36, https://doi.org/10.1016/j.jembe.2012.03.009

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Abstract:
Climate change, including ocean acidification (OA), presents fundamental challenges to marine biodiversity and sustained ecosystem health. We determined reproductive response (measured as naupliar production), cuticle composition and stage specific growth of the copepod Tisbe battagliai over three generations at four pH conditions (pH 7.67, 7.82, 7.95, and 8.06). Naupliar production increased significantly at pH 7.95 compared with pH 8.06 followed by a decline at pH 7.82. Naupliar production at pH 7.67 was higher than pH 7.82. We attribute the increase at pH 7.95 to an initial stress response which was succeeded by a hormesis-like response at pH 7.67. A multi-generational modelling approach predicted a gradual decline in naupliar production over the next 100 years (equivalent to approximately 2430 generations). There was a significant growth reduction (mean length integrated across developmental stage) relative to controls. There was a significant increase in the proportion of carbon relative to oxygen within the cuticle as seawater pH decreased. Changes in growth, cuticle composition and naupliar production strongly suggest that copepods subjected to OA-induced stress preferentially reallocate resources towards maintaining reproductive output at the expense of somatic growth and cuticle composition. These responses may drive shifts in life history strategies that favour smaller brood sizes, females and perhaps later maturing females, with the potential to profoundly destabilise marine trophodynamics.
Keyword(s):
Animalia; Arthropoda; Bottles or small containers/Aquaria (<20 L); Coast and continental shelf; Growth/Morphology; Laboratory experiment; North Atlantic; Pelagos; Reproduction; Single species; Temperate; Tisbe battagliai; Zooplankton
Further details:
Lavigne, Héloïse; Gattuso, Jean-Pierre (2011): seacarb: seawater carbonate chemistry with R. R package version 2.4. 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 (Lavigne and Gattuso, 2011) 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 2014-04-11.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1SpeciesSpeciesFitzer, Susan C
2TreatmentTreatFitzer, Susan C
3StageStageFitzer, Susan C
4LengthlµmFitzer, Susan C
5Sample code/labelSample labelFitzer, Susan Cfemale label
6GenerationGeneration#Fitzer, Susan C
7GroupGroupFitzer, Susan Cbrood
8NaupliiNauplii#Fitzer, Susan C
9ReplicatesRepl#Fitzer, Susan C
10IdentificationIDFitzer, Susan Cpoint
11ElementsElementsFitzer, Susan C
12PercentagePerc%Fitzer, Susan Cweight %
13PercentagePerc%Fitzer, Susan Catomic %
14pHpHFitzer, Susan CPotentiometricNBS scale
15pH, standard deviationpH std dev±Fitzer, Susan CPotentiometricNBS scale
16Temperature, waterTemp°CFitzer, Susan C
17Temperature, water, standard deviationTemp std dev±Fitzer, Susan C
18SalinitySalFitzer, Susan C
19Alkalinity, totalATµmol/kgFitzer, Susan CPotentiometric titration
20Bicarbonate ion[HCO3]-µmol/kgFitzer, Susan CCalculated using CO2SYS
21Carbonate ion[CO3]2-µmol/kgFitzer, Susan CCalculated using CO2SYS
22Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmFitzer, Susan CCalculated using CO2SYS
23Calcite saturation stateOmega CalFitzer, Susan CCalculated using CO2SYS
24Aragonite saturation stateOmega ArgFitzer, Susan CCalculated using CO2SYS
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)
28Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmYang, YanCalculated using seacarb after Nisumaa et al. (2010)
29Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_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 3.0 Unported (CC-BY-3.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
30348 data points

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