Table 4. Results of the canonical analysis of principal coordinates to evaluate the contribution of elements contamination and the variations in the expression of antioxidant biomarkers in estuarine fishes.
| Muscle | Liver | |||||||
|---|---|---|---|---|---|---|---|---|
| CAP 1 (0.99%) | CAP 2 (0.01%) | F | p | CAP 1 (99%) | CAP 2 (0.01%) | F | p | |
| Zn | 0.28 | −0.69 | 1.61 | 0.200 | 0.59 | 0.22 | 12.44 | 0.003 |
| Cu | −0.52 | −0.14 | 7.12 | 0.012 | 0.18 | −0.002 | 1.61 | 0.203 |
| Cd | – | – | – | – | 0.33 | 0.04 | 0.29 | 0.613 |
| Pb | – | – | – | – | 0.31 | −0.09 | 2.76 | 0.097 |
| Hg | 0.58 | −0.40 | 3.03 | 0.084 | 0.74 | −0.37 | 12.42 | 0.002 |
| As | −0.29 | −0.12 | 0.51 | 0.490 | −0.11 | −0.34 | 2.29 | 0.153 |
| Se | −0.49 | 0.31 | 0.48 | 0.503 | 0.24 | 0.12 | 0.22 | 0.631 |
| Cr | −0.43 | −0.58 | 5.11 | 0.028 | 0.21 | 0.02 | 0.14 | 0.690 |
| Mn | −0.50 | −0.56 | 0.93 | 0.334 | −0.54 | −0.18 | 3.32 | 0.076 |
Note:
Spearman correlation values for each metal are described for CAP axis 1–2. Note: proportions of variability explained by CAP axes are between parentheses ‘()’, Fisher test statistic, significant results (p < 0.05) are in bold. Muscle: F = 2.68, p = 0.016; Liver: F = 3.94, p = 0.003.