Nitzschia sigma W. Smith
Nitzschia sigma (Kützing) W. Smith (Figure 100) Literature: (Hendey 1964, p. 281, 282, pl. 42, fig. 1; Witkowski et al. 2000, p. 404, pl. 206, figs. 1–10). Description: Length 82–105 µm, width 14–18 µm, striae 32– 34 in 10 µm, fibulae 5–6 in 10 µm. Remarks: A species with a wide variation in valve o...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2022
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| Online Access: | https://doi.org/10.5281/zenodo.11094507 http://treatment.plazi.org/id/03C487C543167362FCCDFE9877EC9C6F |
| Summary: | Nitzschia sigma (Kützing) W. Smith (Figure 100) Literature: (Hendey 1964, p. 281, 282, pl. 42, fig. 1; Witkowski et al. 2000, p. 404, pl. 206, figs. 1–10). Description: Length 82–105 µm, width 14–18 µm, striae 32– 34 in 10 µm, fibulae 5–6 in 10 µm. Remarks: A species with a wide variation in valve outline, striae and fibulae density. The observed specimens bear coarser and less dense fibulae, Krammer and Lange-Bertalot (1988) reported 7–12 fibula in 10 µm while Hendey (1964) reported eight in 10 µm. Ecology and distribution: A widely distributed marine and brackish-water species. reported from the Arctic as sea-ice diatoms (Wiktor et al. 1998). Not found previously in Potter Cove. Rare in the material examined. Published as part of Al-Handal, Adil Y., Torstensson, Anders & Wulff, Angela, 2022, Revisiting Potter Cove, King George Island, Antarctica, 12 years later: new observations of marine benthic diatoms, pp. 81-103 in Botanica Marina (Warsaw, Poland) (Warsaw, Poland) 65 (2) on page 97, DOI:10.1515/bot-2021-0066, http://zenodo.org/record/11000147 |
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