Open Access
Table. 1
List of metrics calculated from values of taxonomic richness, diversity, abundance and biomass of benthic macroinvertebrate samples collected in Arroyo del Rincón.
| Metrics | Definition |
|---|---|
| Total taxonomic richness | Total number of families + Oligochaeta + Hydracarina |
| EPT richness | Total number of families belonging to Ephemeroptera (mayflies), Plecoptera (stoneflies) and Trichoptera (caddishflies) |
| Total abundance | Total abundance (ind m−2) of macroinvertebrates |
| Abundance by families | Abundance (ind m−2) of macroinvertebrates grouped by families |
| Dominance | Percent of the most abundant taxon in relation to the total number of macroinvertebrates for each sample |
| Total biomass | Total dry mass (mg m−2) of macroinvertebrates |
| Biomass by families | Dry mass (mg m−2) of macroinvertebrates grouped by families |
| Margalef's diversity index | D = (Total taxonomic richness − 1)/ln (Total abundance) |
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