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Table 5

Redundancy analysis: inter-set correlation of environmental variables with axes of RDA for the studied samples. High correlation values are bolded.

Variables AX1 AX2 AX3 AX4
Physicochemical and hydrological parameters
Trans. 0.63 0.19 0.03 0.37
Temp. −0.40 0.50 −0.11 0.05
pH 0.07 0.01 −0.03 −0.16
Cond. −0.08 −0.15 0.34 −0.74
N–NH4 −0.14 −0.25 −0.23 0.26
N–NO3 −0.40 −0.48 0.14 0.10
P–PO4 −0.27 0.33 −0.30 0.57
P tot. −0.31 −0.35 −0.61 0.06
DIN/DIP 0.16 −0.60 0.34 −0.29
O2 0.09 0.17 0.23 −0.17
TOC −0.20 0.36 0.06 0.18
TSS 0.04 −0.25 −0.50 −0.08
Ph. chl-a −0.15 −0.19 −0.47 −0.14
SWAm. 0.20 −0.50 0.07 −0.51
WLF 0.55 −0.22 0.36 −0.58
Fish
A. albur −0.55 −0.07 −0.59 0.03
P. fluvi −0.41 0.43 −0.24 0.14
R. rutil −0.68 −0.19 −0.08 −0.20
S. eryth −0.58 −0.21 −0.54 −0.01
Others 0.01 −0.04 −0.61 0.11
Crustaceans
Acroperu 0.28 0.20 0.26 0.22
Alona −0.12 −0.04 −0.00 −0.36
Alonella 0.03 −0.41 0.32 −0.22
Pleuroxu 0.05 0.11 0.28 0.51
Sida −0.41 0.44 −0.22 0.22

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