Eunotia meridiana Metzeltin & Lange-Bertalot (1998: 67)

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 : 245

publication ID	https://doi.org/10.11646/phytotaxa.647.3.3
DOI	https://doi.org/10.5281/zenodo.14743445
persistent identifier	https://treatment.plazi.org/id/C92C87AE-FFF5-FFF0-FF2B-FB24C359FA3D
treatment provided by	Felipe (2024-08-02 12:46:12, last updated 2025-01-26 20:25:14)
scientific name	Eunotia meridiana Metzeltin & Lange-Bertalot (1998: 67)
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Treatment

Figs 4 View FIGURE 4 : AV–AX

Length: 17–22.4 µm; width: 4.4–4.9 µm; striae: 15–16 in 10 µm (n = 4).

Teratological form: deformed valve outline, with protrusion or constriction near the apices.

Occurrence: S3, S8.

Ecological characteristics: Cond.: 47.00–52.00 µS cm –1; BOD: 0.89–5.05 mg L− 1; COD: 10.20–11.05 mg L− 1; N-NH: 363–448 µg L− 1; 3 − 1 − 1 − − 1 − 1 NO: 0.37 mg L; DO: 11.15–14.62 mg L; pH: 6.04–6.47; PO: 0.005 –0.006 mg L; TP: 0.009 mg L; TS: 21.00–49.00 mg 3 4 L− 1; Temp.: 17.35–17.40 °C; Turb.: 7.79–9.25; Flow: 0.47–1.32 m 3 s; Average depth: 0.19–0.33 m; Prec.: 9.96 mm.

Metal concentrations: Co: 23.73–60.76 mg L –1; Cr: 27.33–88.85 mg L –1; Cu: 160.64–264.18 mg L- 1; Mn: 398.50–606.73 mg L –1; Ni: 27.57–73.27 mg L –1; Pb: 31.05–66.21 mg L –1; Zn: 78.97–173.12 mg L –1.

References

Metzeltin, D. & Lange-Bertalot, H. (1998) Tropical Diatoms of South America I: About 700 predominantly rarely known or new taxa representative of the neotropical flora. Iconographia Diatomologica 5: 1 - 695.

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.