Table 1: Habitat characteristics of the sampling sites ( ).

VariableMeanMinMax

Width (m)13260
Depth (cm)351166
Velocity (cm/s)411368
Substratum particle size*4.507.4
Canopy shading (%)11056
Aquatic vegetation cover (%)536100
Conductivity (μS/cm)5118290
pH6.74.97.2

*Wenthworth scale: (0) <0.07 mm; (1) 0.07–2 mm; (2) 2.1–8 mm; (3) 8.1–16 mm; (4) 16.1–32 mm; (5) 32.1–64 mm; (6) 64.1–128 mm; (7) 128.1–256 mm; (8) >256.1 mm.