Table 1 Critical thermal minima determined by thermolimit respirometry (TLR) under different PO2 conditions.
From: Cold tolerance is unaffected by oxygen availability despite changes in anaerobic metabolism
O2 (kPa) | Visual CTmin* (°C) | Mass (mg) |
| Activity CTmin (°C) |
|---|---|---|---|---|
0 | 38.69 ± 7.66 | 7.33 ± 2.08 | Undetectable | |
(n = 8) | (n = 8) | (n = 4) | ||
2.5 | 50.25 ± 6.88 | 4.27 ± 0.78 | 4.54 ± 1.00 | |
(n = 11) | (n = 11) | (n = 9) | ||
5 | 43.53 ± 9.37 | 3.82 ± 1.64 | 3.93 ± 1.28 | |
(n = 8) | (n = 6) | (n = 8) | ||
10 | 44.84 ± 9.48 | 5.03 ± 0.49 | 7.09 ± 1.48 | |
(n = 14) | (n = 14) | (n = 6) | ||
21 | 6.7 ± 0.1 | 40.31 ± 6.70 | 5.45 ± 0.53 | 5.10 ± 0.69 |
(n = 19) | (n = 13) | (n = 12) | (n = 9) | |
40 | 44.99 ± 10.87 | 4.65 ± 0.72 | 5.80 ± 1.20 | |
(n = 12) | (n = 12) | (n = 5) | ||
F 4,50 = 1.04, | F 5,56 = 0.87, | H 4,37 = 3.48, | ||
P = 0.40 | P = 0.51 | P = 0.48 |
CO2 CTmin (°C)- Data indicates mean ± S.E.M. Statistical results of comparison between oxygen groups are shown in the bottom row. Additional results in Table S1.
CO2 CTmin and activity CTmin were calculated from the inflection point of regressions of the absolute difference sum (ADS) residuals (see methods). - *Critical thermal minimum (CTmin) data from Boardman et al.36.
CO2 CTmin and activity CTmin were calculated from the inflection point of regressions of the absolute difference sum (ADS) residuals (see methods).