Table 1.
Optimal environmental model results. Results from analyses of the influence of SST (PC1) and discharge on the logit-transformed proportion of one-sea-winter relative to two-sea-winter fish from the same smolt cohort of Atlantic salmon obtained from the optimal mixed-effects model with River as random grouping factor (59 levels)
| Effects | Estimate | 95% CI | t-value | P-value |
|---|---|---|---|---|
| Fixed | ||||
| Intercept | 1.441 | 1.279; 1.602 | 17.509 | <0.0001 |
| SSTSeptember | –0.012 | –0.014; –0.009 | –9.257 | <0.0001 |
| D | –0.289 | –0.378; –0.200 | –6.370 | <0.0001 |
| Random (SD) | ||||
Intercept ( ) |
0.612 | 0.501; 0.747 | na | na |
| Residual (σ2) | 0.496 | 0.446; 0.550 | na | na |
| Correlation structure | ||||
| φ | –0.140 | –0.212; –0.067 | na | na |
| Variance function | ||||
| δ | 0.214 | 0.150; 0.278 | na | na |
SST = sea surface temperature, D = discharge, CI= confidence interval, SD = standard deviation, na = not applicable.