Table 4. PERMANOVA tests for total and potentially-toxic Microcystis (cell equivalents g-1) between sites (1.1–15.1) and event (November 2014, April 2015, November 2015, and April 2016).
Tests were based on the non-Euclidean Bray-Curtis dissimilarity measure and were done using 999 permutations under the reduced model. Bold values indicate significant differences at p <0.05.
| Microcystis spp. | Source | df | SS | R2 | Pseudo-F | Pr (>F) |
|---|---|---|---|---|---|---|
| Total | Site | 15 | 3.558 | 0.25791 | 1.1489 | 0.261 |
| Event | 3 | 2.3919 | 0.17338 | 3.8617 | 0.002 | |
| Residual | 38 | 7.8457 | 0.56871 | - | - | |
| Total | 56 | 13.7957 | 1 | - | - | |
| Potentially-toxic | Site | 15 | 2.5099 | 0.18552 | 0.8146 | 0.783 |
| Event | 3 | 3.214 | 0.23756 | 5.2157 | 0.001 | |
| Residual | 38 | 7.8053 | 0.57693 | - | - | |
| Total | 56 | 13.5291 | 1 | - | - |