Table 2.
Statistical results of the various mixed effect models performed
| Infection rate | |||
| Variable | D.F. | F | P |
| Stickleback origin | 3 | 20.290 | <0.001 |
| Parasite origin | 1 | 5.570 | 0.018 |
| Stickleback origin × Parasite origin | 3 | 3.136 | 0.277 |
| Relative S. solidus growth rate | |||
| Variable | D.F. | F | P |
| Stickleback origin | 3 | 33.764 | <0.001 |
| Parasite origin | 1 | 295.371 | <0.001 |
| Stickleback origin × Parasite origin | 3 | 4.472 | 0.004 |
| Fish standard length | |||
| Variable | D.F. | F | P |
| Stickleback origin | 3 | 3.930 | 0.048 |
| Stickleback origin × Parasite origin | 8 | 2.118 | 0.032 |
| Fish hepatosomatic index (HSI) | |||
| Variable | D.F. | F | P |
| Stickleback origin | 3 | 2.158 | 0.170 |
| Stickleback origin × Parasite origin | 8 | 3.842 | <0.001 |
| Fish splenosomatic index (SSI) | |||
| Variable | D.F. | F | P |
| Stickleback origin | 3 | 6.010 | 0.016 |
| Stickleback origin × Parasite origin | 8 | 5.799 | <0.001 |
Results are given for infection rate, relative worm growth rate, host standard length, hepatosomatic (HSI) and splenosomatic (SSI) indices, significant P-values (<0.05) in bold