| Benthic Metric |
Response to Impairment |
| Taxonomic Richness |
Decrease |
| % Dominant Taxon |
Increase |
| Emphemeroptera Taxa |
Decrease |
| EPT Taxa |
Decrease |
| EPT Index (%) |
Decrease |
| Shannon Diversity |
Decrease |
| Tolerance Value |
Increase |
| % Tolerant Taxa |
Increase |
| % Collectors/Filterers |
Increase |
| % Collectors/Gatherers |
Increase |
| % Grazers |
Variable |
| % Predators |
Variable |
| % Shredders |
Decrease |
| Abundance |
Decrease |
|
