Data set | River/Habitat | Bray-Curtis | p PERMANOVA | Δ Shannon | p U-test | Δ EQC | Δ EQC (av) |
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1 | W | 61 | < 0.01 | 0.25 | < 0.05 | 1 | 0 |
S | 48 | < 0.01 | 0.31 | < 0.01 | 1 | 1 |
M | 47 | < 0.01 | -0.04 | > 0.05 | 1 | 0 |
L | 74 | < 0.05 | -0.11 | > 0.05 | -1 | 0 |
G | 48 | < 0.01 | 0.80 | < 0.001 | 0 | 0 |
2 | R | 29 | < 0.001 | 0.32 | > 0.05 | 0 | 0 |
O | 33 | < 0.001 | 0.13 | > 0.05 | 0 | 1 |
D | 31 | > 0.05 | -0.16 | > 0.05 | 0 | 0 |
3 | AG | 34 | < 0.01 | -0.40 | > 0.05 | 2 | 2 |
GO | 61 | < 0.05 | 0.01 | > 0.05 | 0 | 1 |
MG | 50 | > 0.05 | 0.31 | > 0.05 | -1 | 0 |
P | 67 | > 0.05 | 0.17 | > 0.05 | -1 | 0 |
SR | 28 | < 0.05 | 0.07 | > 0.05 | 0 | 0 |
W | 79 | > 0.05 | 0.14 | > 0.05 | 0 | 0 |
- River/Habitat = Codes for the studied rivers/habitats; Bray-Curtis = Bray-Curtis Similarity between treatments; p PERMANOVA = p-values derived from PERMANOVA analysis between treatments; Δ Shannon = difference in Shannon diversity between treatments, p U-test = p-value derived from Mann–Whitney-U test between treatments; Δ EQC = difference in Ecological Quality Class according to Water Framework Directive, calculated following “one-out-all-out” combination rule; Δ EQC (av) = difference in Ecological Quality Class according to Water Framework Directive, calculated by averaging EQC values from diatoms, phytobenthos, macrophytes, macroinvertebrates and fishes. Abbreviations of river names in data set 1: W = Wiesent, S = Sächsische Saale, M = Moosach, L = Leitzach, G = Günz; abbreviations of habitats in data set 2: R = river stretches, O = oxbow stretches, D = drainage ditch; abrreviations of river names in data set 3: AG = Alte Günz, GO = Große Ohe, MG = Mühlangergraben, P = Perlenbach, SR = Südliche Regnitz, W = Wiesent.