Table 5. PERMANOVA of drivers of the structure of fish assemblage at Darwin and Wolf based on the biomass of each trophic group (apex predators, planktivores, lower-level carnivores, and herbivores).
Only significant interactions are shown.
| Source | df | SS | MS | Pseudo-F | P |
|---|---|---|---|---|---|
| Year | 1 | 17,232 | 17232.0 | 17.024 | 0.001 |
| Island | 1 | 3,058 | 3058.4 | 3.022 | 0.027 |
| Orientation | 1 | 54,298 | 54298.0 | 53.642 | 0.001 |
| Year × orientation | 1 | 7,384 | 7383.9 | 7.295 | 0.001 |
| Island ×orientation | 1 | 4,006 | 4005.5 | 3.957 | 0.010 |
| Year × island × orientation | 1 | 4,345 | 4345.1 | 4.293 | 0.005 |
| Residual | 129 | 130,580 | 1012.2 | ||
| Total | 136 | 217,710 |