Eunotia yberai Frenguelli (1933: 446)

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 : 246

publication ID	https://doi.org/10.11646/phytotaxa.647.3.3
DOI	https://doi.org/10.5281/zenodo.14743453
persistent identifier	https://treatment.plazi.org/id/C92C87AE-FFF4-FFF1-FF2B-FC70C35AFA8C
treatment provided by	Felipe (2024-08-02 12:46:12, last updated 2025-01-26 20:25:14)
scientific name	Eunotia yberai Frenguelli (1933: 446)
status

Treatment

Figs 5 View FIGURE 5 : N–P

Length: 55.7–67.2 µm; width: 7.3–9.5 µm; striae: 6–9 in 10 µm (n = 5)

Teratological form: deformed valve outline, with depression in the ventral region of the valve. Some individuals presented valves more curved ventrally. Unusual striae pattern.

Occurrence: S1, S4.

Ecological characteristics: Cond.: 58.00–78.00 mS cm –1; BOD: 1.10–5.50 mg L− 1; COD: 1.00– 18.10mg L− 1; N-NH: 200 µg L− 1; NO: − 3 3 2.10–14.30 mg L− 1; DO: 6.17–19.50 mg L− 1; pH: 6.09–6.75; PO: 0.004 –0.046 mg L− 1; TP: 0.009 –0.943 mg L− 1; TS: 32.00–104.00 4 mg L− 1; Temp.: 18.01–20.93 °C; Turb.: 2.81–6.38; Flow: 0.10–0.45 m 3 s; Average depth: 0.04–0.12 m; Prec.: 2.39–11.17 mm.

Metal concentrations: Co: 23.67–44.91 mg L –1; Cr: 23.67–83.01 mg L –1; Cu: 210.07–273.01 mg L- 1; Mn: 349.80–523.81 mg L –1; Ni: 28.58–58.71 mg L –1; Pb: 35.17–61.04 mg L –1; Zn: 81.88–239.18 mg L –1.

References

Frenguelli, J. (1933) Contribucion al conocimiento de las Diatomeas Argentinas. Diatomeas de la region de los Esteros del Ybera (en la Provincia de Corrientes). Anales del Museo Nacional de Historia Natural 37: 365 - 476.

Figures

FIGURE 5. Epilithic diatoms from Cascavel River micro-watershed in LM.A. Eunotia ossicula. B–G. E. rhomboidea. E–G. Teratological valves. H. E. tropico-arcus. I–K. E. veneris. L. E. yanomami. M–P. E. yberai. N–P. Teratological valves. Q. Cymbopleura naviculiformis. R–S. Encyonema angustecapitatum. T. E. perpusillum. U. E. neogracile. V–X. E. neomesianum. X. Teratological valve. Y–AA. E. silesiacum. AA. Teratological valve. AB. E. minutiforme. AC–AE. E. exuberans. AF–AH. Navigeia ignota. AI–AK. Placogeia kriegeri. AL–AM. Encyonopsis subminuta. AN–AO. E. difficilis. AP. E. schubartii. AQ–AS. E. thienemannii. AT–AU. Geissleria punctifera. AV. Kurtkrammeria spicula. Scale bars: 10 µm.