Table 2.
Results from analysis of covariance models examining the contribution of species (dwarf, normal) and lake to variation in heart ventricle and brain mass in lake whitefish (Coregonus clupeaformis)
| Heart ventricle | Brain | |||||
|---|---|---|---|---|---|---|
| F | DF | P-value | F | DF | P-value | |
| Model | 122.39 | 8,30 | <0.001 | 20.15 | 8,84 | <0.001 |
| Body Mass | 182.61 | 1 | <0.001 | 20.00 | 1 | <0.001 |
| Lake | 2.17 | 3 | 0.113 | 8.99 | 3 | <0.001 |
| Species | 1.21 | 1 | 0.281 | 0.03 | 1 | 0.864 |
| Lake×Species | 0.28 | 3 | 0.836 | 2.44 | 3 | 0.069 |
Body mass was included as the covariate in each model, and the interactions between lake and species were also examined. Significant P-values (P < 0.05) are indicated in bold.