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Table 4
Mean values and standard deviation (SD) for each abiotic variable. Water temperature (WT), dissolved oxygen (DO), electrical conductivity (EC), organic matter (OM), Aluminum (Al) and Lead (Pb).
| 2012 | 2013 | 2014 | |
|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | |
| WT | 20.93 ± 2.859 | 26.433 ± 0.986 | 26.625 ± 3.823 |
| DO | 8.887 ± 0.135 | 6.906 ± 0.126 | 7.367 ± 1.162 |
| pH | 6.825 ± 0.611 | 7.576 ± 0.040 | 5.762 ± 0.237 |
| OM | 30.153 ± 13.743 | 19.653 ± 13.58 | 13.232 ± 9.281 |
| EC | 83.387 ± 12.310 | 72.233 ± 2.371 | 95.375 ± 15.783 |
| Al | 1.460 ± 0.549 | 0.636 ± 0.604 | 2.132 ± 1.554 |
| Pb | 0.016 ± 0.024 | 0.050 ± 0.060 | 0.025 ± 0.048 |
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