Caloneis bacillum (Grunow) Cleve (1894: 99)

Fig. 9: AM

Length: 26.8 µm; width: 4.5 µm (n = 1)

Teratological form: deformed valve outline, with asymmetry of the valve.

Occurrence: S8.

Ecological characteristics: Cond.: 44.00 µS cm –1; BOD: 4.59 mg L− 1; COD: 6.79 mg L− 1; N-NH: 200 µg L− 1; NO: 1.60 mg L− 1; DO: 3 3 − 1 − − 1 − 1 − 1 3 26.24 mg L; pH: 6.81; PO: 0.05 mg L; TP: 0.02 mg L; TS: 50.00 mg L; Temp.: 20.30 °C; Turb.: 0.00; Flow: 5.88 m s; 4 Average depth: 0.34 m; Prec: 2.73 mm.

Metal concentrations: Co: 60.76 mg L –1; Cr: 33.25 mg L –1; Cu: 163.45 mg L –1; Mn: 538.54 mg L –1; Ni: 32.81 mg L –1; Pb: 48.63 mg L –1; Zn: 83.42 mg L –1.