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Table 4

Mean and median values for the STAR_ICMi and its component metrics from three Greek reference sites (seven reference samples) of river type R-M3.

Metric / Index Mean value Median value
ASPT-2 4.89 4.55
Log10(Sel EPTD +1) 2.22 2.10
1-GOLD 0.85 0.91
EPT 11.6 11
N-families 25.6 27
Shannon-Wiener index 1.97 1.89
STAR_ICMi 1.03 1.00

ASPT: Average Score per Taxon, Log10(Sel EPTD): Log10 (Sum of Heptageniidae, Ephemeridae, Leptophlebiidae, Brachycentridae, Goeridae, Polycentropodidae, Limnephilidae, Odontoceridae, Dolichopodidae, Stratyomidae, Dixidae, Empididae, Athericidae and Nemouridae), 1-GOLD: 1-(relative abundance of Gastropoda, Oligochaeta and Diptera), EPT: Sum of Ephemeroptera, Plecoptera and Trichoptera families, N-families: Sum of all families.

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