Performance of the STAR_ICMi macroinvertebrate index and implications for classification and biomonitoring of rivers | Knowledge and Management of Aquatic Ecosystems

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Table 1

The subindices used to compute the multimetric STAR_ICMi.

Indicator	Metric	Name	Taxa considered	Reference	Weight
Tolerance	Index	ASPT-2	Whole assemblage at family level	Armitage et al. (1983)	0.333
Habitat	Abundance	Log₁₀ (Sel_EPTD+1)	Log₁₀ (sum of Heptageniidae, Ephemeridae, Leptophlebiidae, Brachycentridae, Goeridae, Polycentropodidae, Limnephilidae, Odontoceridae, Dolichopodidae, Stratyomidae, Dixidae, Empididae, Athericidae e Nemouridae+1)	Buffagni et al. (2004)	0.266
Richness/diversity	Abundance	1-GOLD	1-(Relative abundance of Gastropoda, Oligochaeta and Diptera)	Pinto et al. (2004)	0.067
	Number of taxa	N° families	Sum of the families	Ofenböck et al. (2004)	0.167
	Number of taxa	N° EPT families	Sum of the families of Ephemeroptera, Plecoptera and Trichoptera	Ofenböck et al. (2004)	0.083
	Diversity index	Shannon–Wiener	Whole assemblage at family level		0.083

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