Eunotia botulitropica C.E.Wetzel & L.F. Costa (2017: 14)

Eunotia botulitropica C.E.Wetzel & L.F. Costa (2017: 14)

Fig. 4 View FIGURE 4 : P

Length: 15.9 µm; width: 2.9 µm; striae: 14 in 10 µm (n = 1)

Teratological form: deformed valve outline, with constriction in the median portion of the valve.

Occurrence: S5.

Ecological characteristics: Cond.: 10.00 µS cm –1; BOD: 1.19 mg L− 1; COD: 4.28 mg L− 1; N-NH: 200 µg L− 1; NO: 0.10 mg L− 1; DO: 3 3 − 1 − − 1 − 1 − 1 3 18.64 mg L; pH: 7.18; PO: 0.005 mg L; TP: 0.005 mg L; TS: 13.00 mg L; Temp.: 21.27 °C; Turb.: 0.96; Flow: 0.03 m s; 4 Average depth: 0.02 m; Prec.: 3.81 mm.

Metal concentrations: Co: 26.94 mg L –1; Cr: 72.40 mg L –1; Cu: 234.78 mg L –1; Mn: 312.44 mg L –1; Ni: 91.80 mg L –1; Pb: 25.81 mg L –1; Zn: 162.55 mg L –1.