Table 2. Two-Factor ANOVA Results from the 2015 Experiments in Which Metal Concentrations (CCU), Instar Size, and CCU × Instar Size Interaction Were Used to Predict Mortality of the Four Dominant Taxa: Baetis spp. (Ephemeroptera), Orthocladiinae (Diptera), Hydropsyche spp. (Trichoptera), and Isoperla spp. (Plecoptera).
| taxa | model term | F-value | P-value |
|---|---|---|---|
| Baetis spp. | CCU treatment | 100.12 | <0.0001 |
| instar size | 14.68 | <0.0001 | |
| CCU treatment × instar size | 4.50 | <0.0001 | |
| Orthocladiinae | CCU treatment | 53.43 | <0.0001 |
| instar size | 17.99 | <0.0001 | |
| CCU treatment × instar size | 2.13 | 0.0076 | |
| Hydropsyche spp. | CCU treatment | 4.56 | 0.0023 |
| instar size | 53.73 | <0.0001 | |
| CCU treatment × instar size | 2.75 | 0.0008 | |
| Isoperla spp. | CCU treatment | 14.75 | <0.0001 |
| instar size | 4.54 | 0.0014 | |
| CCU treatment × instar size | 1.62 | 0.0762 |