Eunotia bilunaris (Ehrenberg) Schaarschmidt (1880: 159)

Amaral, Mailor Wellinton Wedig, Medeiros, Gabriela, Daufenbach, Vanessa, Sampaio, Silvio Cesar, Reis, Ralpho Rinaldo Dos, Ludwig, Thelma Alvim Veiga & Bueno, Norma Catarina, 2024, Taxonomy of epilithic diatoms and teratological forms under the presence of metals in surface sediment, Phytotaxa 647 (3), pp. 237-273 : 243-245

publication ID	https://doi.org/10.11646/phytotaxa.647.3.3
DOI	https://doi.org/10.5281/zenodo.14743435
persistent identifier	https://treatment.plazi.org/id/C92C87AE-FFFB-FFF0-FF2B-F828C35BFE91
treatment provided by	Felipe (2024-08-02 12:46:12, last updated 2025-01-26 20:25:14)
scientific name	Eunotia bilunaris (Ehrenberg) Schaarschmidt (1880: 159)
status

Treatment

Figs 4 View FIGURE 4 : G–J, 13: A

Length: 11.8–88.9 µm; width: 2.4–4.7 µm; striae: 15–19 in 10 µm (n = 49)

Teratological form: deformed valve outline, undulated, with protrusion, slight or strong constriction in the median portion of the valve, or strong bent ventrally or near the apices.

Occurrence: S1, S2, S3, S4, S6, S8.

Ecological characteristics: Cond.: 41.00–70.00 µS cm –1; BOD: 0.89–9.35 mg L− 1; COD: 1.20–20.32 mg L− 1; N-NH: 18–316 µg L− 1; NO: 3 3 − 1 − 1 − − 1 − 1 0.32–9.31 mg L; DO: 7.70–19.50 mg L; pH: 5.79–6.99; PO: 0.003 –0.022 mg L; TP: 0.007 –0.040 mg L; TS: 10.00–174.00 4 mg L− 1; Temp.: 17.37–23.56 °C; Turb.: 2.47–37.50; Flow: 0.07–5.49 m 3 s; Average depth: 0.04–0.42 m; Prec.: 2.37–11.17 mm.

Metal concentrations: Co: 17.50–47.24 mg L –1; Cr: 21.98–81.32 mg L –1; Cu: 160.64–263.62 mg L- 1; Mn: 349.80–502.78 mg L –1; Ni: 27.57–66.65 mg L –1; Pb: 33.49–66.21 mg L –1; Zn: 78.97–170.48 mg L –1.

Figures

FIGURE 4. Epilithic diatoms from Cascavel River micro-watershed in LM. A–C. Actinella hermes-moreirae. D–J. Eunotia bilunaris. G–J. Teratological valves. K–P. E. botulitropica. P. Teratological valve. Q–R. E. canicula. S–T. E. desmogonioides. T. Teratological valve. U–X. E. subarcuatoides. W–X. Teratological valves. Y–Z. E. fallax. AA. E. formica. AB. E. formicina. AC. E. karenae. AD. E. intricans. AE. E. longicamelus. AF. E. rabenhorstii var. monodon. AG. E. rabenhorstii var. triodon. AH–AJ. E. juettnerae. AK–AM. E. kruegeri. AN–AO. E. muscicola. AP–AQ. E. monodon. AQ. Teratological valve. AR–AX. E. meridiana. AV–AX. Teratological valves. AY. E. georgii. Scale bars: 10 µm.