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Table 4 Chemical properties of the experimental seawater used for intracellular pH measurements. Input conditions: 20 °C, 1 dbars pressure, P and Si: 0 µmol kg−1 SW. Identical output conditions except for temperature (3 °C)

From: CO2-induced fertilization impairment in Strongylocentrotus droebachiensis collected in the Arctic

Experiment Treatment (ASW) Salinity (‰) A T (μmol kg−1 SW) pH* (NIST) C T (μmol kg−1 SW) pHC (total scale) pCO2 (µatm)
pHi ~180 31.2 ± 0.1 2,383.8 ± 1.0 8.13 ± 0.00 2,129.1 ± 9.5 8.34 ± 0.01 192 ± 3.5
~380 31.3 ± 0.2 2,396.2 ± 5.1 8.05 ± 1.41 2,258.1 ± 4.4 8.08 ± 0.01 379 ± 6.7
~750 31.2 ± 0.1 2,382.2 ± 2.1 7.63 ± 0.01 2,350.1 ± 19.8 7.80 ± 0.02 770 ± 46.2
~1,000 31.1 ± 0.1 2,398.2 ± 7.8 7.58 ± 0.03 2,385.0 ± 24.6 7.71 ± 0.10 980 ± 229.2
~2,000 31.4 ± 0.3 2,448.0 ± 1.1 7.20 ± 0.00 2,529.1 ± 9.3 7.39 ± 0.03 2,110 ± 139.4
  1. Values represent mean ± SD, n = 2 ASW samples per treatment. pH*: A T integrated pH measurements