Tab. 5. PERMANOVA (t - pairwise comparison) post hoc test results applied to species diet and Pianka’s niche overlap (O) between non-native (H. mbigua and H. unitaeniatus) and native (Hoplias sp. B and H. cf. malabaricus) Erythrinidae species in the upper Paraná River floodplain. *Considered significant.
| Species Pairs |
Permanova |
Niche Overlap |
| t |
p |
O |
p |
| H. mbigua x Hoplias sp. B |
1.22 |
0.012 |
0.69 |
<0.001 |
| H. mbigua x H. cf. malabaricus |
1.2 |
0.015 |
0.51 |
<0.002 |
| H. mbigua x H. unitaeniatus |
1.79 |
0.001 |
0.02 |
<0.003 |
| Hoplias sp. B x H. cf. malabaricus |
1.14 |
0.05* |
0.52 |
<0.004 |
| Hoplias sp. B x H. unitaeniatus |
1.71 |
0.001 |
0.05 |
<0.005 |
| H. cf. malabaricus x H. unitaeniatus |
1.31 |
0.028 |
0.15 |
<0.006 |