Table 1.
Variation in the activities of the phenoloxidase enzyme (PO and proPO activity) measured in Gammarus pulex experimentally infected by Pomphorhynchus laevis as a function of ‘season’ of exposure and ‘parasite sibship’ nested within the ‘season’.
| dependent variable | source of variation | Fd.f. | p |
|---|---|---|---|
| PO activity | global model | 5.30 (17,519) | < 0.0001 |
| season | 25.51 (1,519) | < 0.0001 | |
| parasite sibship(season) | 2.01 (16,519) | 0.0110 | |
| ProPO activity | global model | 2.35 (17,519) | 0.0017 |
| season | 0.15 (1,519) | 0.7045 | |
| parasite sibship(season) | 2.50 (16,519) | 0.0011 |