Appendix S1. Macroinvertebrate metrics used in several other studies that developed multimetric indices (MMIs) and the 37 specific metrics tested (*) in this study. More than one variant of a metric (number in parentheses) was sometimes calculated, i.e. % dominance based on different numbers of taxa or use of different tolerance value thresholds to define intolerant or tolerant taxa. We also tested a few other metrics that were not listed in the cited sources but that we considered to have potential for use in MMIs (−). RA = relative abundance of individuals. EPT = Ephemeroptera, Plecoptera and Trichoptera.

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