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Stephanodiscus

Stephanodiscus
Stephanodiscus hantzschii
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Sar
Clade: Stramenopiles
Division: Ochrophyta
Clade: Bacillariophyta
Class: Thalassiosirophyceae
Order: Thalassiosirales
Family: Thalassiosiraceae
Genus: Stephanodiscus
Castracane, 1886

Stephanodiscus is a genus of centric diatoms, belong to the family Stephanodiscaceae.[1] These diatoms are single-celled, photosynthetic algae characterized by circular, radially symmetrical silica cell walls (frustules).[2]

They are commonly found in freshwater environments, such as lakes and rivers, and are ecologically significant as primary producers in aquatic food webs.[3] Stephanodiscus species, like Stephanodiscus hantzschii or Stephanodiscus niagarae, are often used as indicators of environmental conditions, including water quality and nutrient levels, due to their sensitivity to changes in their habitat.[4] Their intricate frustule patterns are also studied in paleolimnology to reconstruct past environmental conditions.[5]

References

  1. ^ Guiry, M.D. (2025). AlgaeBase. [1] Accessed: 26 October 2025.
  2. ^ Round, F. E.; Crawford, R. M.; Mann, D. G. (1990-05-25). Diatoms. Cambridge: Cambridge University Press. p. 148. ISBN 978-0-521-36318-1.
  3. ^ Reynolds, C. S. (2006-05-04). The Ecology of Phytoplankton. Cambridge University Press. p. 324. ISBN 978-1-139-45489-6.
  4. ^ Fritz, S. C.; Juggins, S.; Battarbee, R. W.; Engstrom, D. R. (1991). "Reconstruction of past changes in salinity and climate using a diatom-based transfer function". Nature. 352 (6337): 706–708. Bibcode:1991Natur.352..706F. doi:10.1038/352706a0. ISSN 0028-0836. Retrieved 2025-10-26.
  5. ^ Gasse, F (1997). "Diatom-inferred salinity in palaeolakes: An indirect tracer of climate change". Quaternary Science Reviews. 16 (6): 547–563. Bibcode:1997QSRv...16..547G. doi:10.1016/S0277-3791(96)00081-9. Retrieved 2025-10-26.

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