Table 2.
Lethal Concentration (LC) values with 96 h exposure to 10% and 50% of the test populations in terms of electrical conductivity (mS/cm @ 25˚C) to three significant figures for taxa tested in this study
| LC10 | LC50 | |||||
|---|---|---|---|---|---|---|
| Test Animal | NaHCO3 | WT1 | WT2 | NaHCO3 | WT1 | WT2 |
| Paratya australiensis | 0.67 (0.6–0.8) | 4.60 (3.6–5.2) | 1.62 (0.8–2.1) | 1.01 (0.9–1.1) | 6.14 (5.6–6.7) | 3.30 (2.9–3.8) |
| Austrophlebioides pusillus | 2.48 (1.8–2.9) | 3.25 (1.8–4.3) | 5.00 (2.6–5.7) | 3.49 (3.2–3.9) | 8.13 (7.2–9.4) | 6.17 (5.3–7.0) |
| Ceriodaphnia dubia | 1.75 (1.5–1.9) | 2.75 (1.7–3.2) | 2.51 (2.3–2.6) | 2.31 (2.2–2.4) | 3.79 (3.4–4.2) | 3.01 (2.9–3.1) |
| Cherax destructor | 7.61 (5.6–8.6) | 22.3 (16.9–24.8) | NT | 10.1 (9.2–11.0) | 52.5 (51.5–53.7) | NT |
| Isidorella newcombi | 1.28 (0.3–1.9) | 4.26 (1.9–5.6) | NT | 3.48 (2.9–4.1) | 7.69 (6.5–9.0) | NT |
| Jappa kutera | 2.84 (2.1–3.2) | 6.21 (NR) | 8.99 (NR) | 4.12 (3.7–4.8) | 7.60 (NR) | 9.78 (NR) |
NaHCO3 data from (Hills et al. 2019). Parentheses indicate 95% confidence intervals. Values estimated using probit regression. NT Not Tested, NR No Result. See Supplementary Table 1 for LC values for 72-h exposure. See also Supplementary Tables S1 and S2 for result in total salinity and osmolarity. See Figs. 2a, 3a and 4a for graphical displays of the concentration response curves for three of these species