DO

TSS

T

BOD

E.C.

COD

Taxonomic richness (SR)

0.89***

−0.86***

−0.57**

−0.59***

−0.84***

−0.64***

−0.85***

Biotic index: I.B.G.N

0.92***

−0.82***

−0.63**

−0.60**

−0.90***

−0.62***

−0.80***

Shannon-Weaner (H')

0.84***

−0.84***

−0.69***

−0.57***

−0.83***

−0.24*

−0.69***

Evenness Index (E)

−0.68***

0.62***

0.45**

0.42***

0.73***

0.21*

0.52***