Table 2. Results of the logistic regression for fertilisation rates at three different pH/pCO2 conditions, all curve fits were highly significant (p<0.0001).
| Estimate (SE) | T | P | R2 | |
| 8.1 | ||||
| b | 1.04 (0.07) | 14.4 | <0.0001 | 0.93 |
| c | 5.13 (0.07) | 69.51 | <0.0001 | |
| 7.9 | ||||
| b | 1.00 (0.05) | 18.25 | <0.0001 | 0.95 |
| c | 5.60 (0.06) | 96.64 | <0.0001 | |
| 7.6 | ||||
| b | 1.06 (0.05) | 19.38 | <0.0001 | 0.95 |
| c | 6.45 (0.05) | 135.23 | <0.0001 |
b = slope of the curves; c = x-value at the inflection point of the curve, i.e. the sperm concentration at which 50% of the eggs were fertilised.