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Schram, Julie B; McClintock, James B; Angus, Robert A; Lawrence, John M (2011): Seawater carbonate chemistry, mass, size and regenerative capacity of Luidia clathrata during experiments, 2011. PANGAEA, https://doi.org/10.1594/PANGAEA.774449, Supplement to: Schram, JB et al. (2011): Regenerative capacity and biochemical composition of the sea star Luidia clathrata (Say) (Echinodermata: Asteroidea) under conditions of near-future ocean acidification. Journal of Experimental Marine Biology and Ecology, 407(2), 266-274, https://doi.org/10.1016/j.jembe.2011.06.024

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Abstract:
The present study examines sublethal effects of near-future (year 2100) ocean acidification (OA) on regenerative capacity, biochemical composition, and behavior of the sea star Luidia clathrata, a predominant predator in sub-tropical soft-bottom habitats. Two groups of sea stars, each with two arms excised, were maintained on a formulated diet in seawater bubbled with air alone (pH 8.2, approximating a pCO2 of 380 µatm) or with a controlled mixture of air/C02 (pH 7.8, approximating a pCO2 of 780 µatm). Arm length, total body wet weight, and righting responses were measured weekly. After 97 days, a period of time sufficient for 80% arm regeneration, pyloric caecal indices, and protein, carbohydrate, lipid, and ash levels were determined for body wall and pyloric caecal tissues of intact and regenerating arms of individuals held in both seawater pH treatments. The present study indicates that predicted near-term levels of ocean acidification (seawater pH 7.8) do not significantly impact whole animal growth, arm regeneration rates, biochemical composition, or righting behavior in this common soft bottom sea star.
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).
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Experimental treatmentExp treatSchram, Julie B
2Experiment dayExp daydaySchram, Julie B
3SalinitySalSchram, Julie B
4Temperature, waterTemp°CSchram, Julie B
5Alkalinity, totalATµmol/kgSchram, Julie BTitration
6pHpHSchram, Julie BpH meter (ACCUMET BASIC Model AB15)NBS scale
7Luidia clathrata, regenerated arm lengthL. clathrata l armmmSchram, Julie BMeasured
8Luidia clathrata, regenerated arm length, standard errorL. clathrata l arm std e±Schram, Julie B
9Luidia clathrata, wet massL. clathrata wmgSchram, Julie BMeasured
10Luidia clathrata, wet mass, standard errorL. clathrata wm std e±Schram, Julie B
11Luidia clathrata, righting timeL. clathrata righting timesSchram, Julie BMeasured
12Luidia clathrata, righting time, standard errorL. clathrata righting time std e±Schram, Julie B
13Carbonate system computation flagCSC flagNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
14pHpHNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)Total scale
15Carbon dioxideCO2µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
16Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)pCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
17Fugacity of carbon dioxide (water) at sea surface temperature (wet air)fCO2water_SST_wetµatmNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
18Bicarbonate ion[HCO3]-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
19Carbonate ion[CO3]2-µmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
20Carbon, inorganic, dissolvedDICµmol/kgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
21Aragonite saturation stateOmega ArgNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
22Calcite saturation stateOmega CalNisumaa, Anne-MarinCalculated using seacarb after Nisumaa et al. (2010)
Size:
608 data points

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