Limno-terrestrial Diatom Flora in Two Stream Valleys Near Arctowski Station, King George Island, Antarctica

Authors

  • Teresa Noga Department of Soil Studies, Environmental, Chemistry and Hydrology, Faculty of Biology and Agriculture, University of Rzeszow, Zelwerowicza 8B, 35-601 Rzeszów, Poland
  • Natalia Kochman-Kędziora Department of Ecology and Environmental Protection, University of Rzeszow, Zelwerowicza 4, 35–601 Rzeszów, Poland; Podkarpackie Innovative Research Center of Environment, University of Rzeszow, Zelwerowicza 8B, 35–601 Rzeszów, Poland
  • Maria Olech Department of Polar Research and Documentation, Institute of Botany, Jagiellonian University, Kopernika 27, 31-501 Kraków, Poland; Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawińskiego 5a, 02-106 Warszawa, Poland
  • Bart Van de Vijver Research Department, Meise Botanic Garden, Nieuwelaan 38, B–1860 Meise, Belgium; Department of Biology, ECOBE, University of Antwerp, Universiteitsplein 1, B–2610 Wilrijk, Antwerpen, Belgium

DOI:

https://doi.org/10.24425/ppr.2020.134793

Abstract

Diatom communities sampled in the vicinity of the Polish Antarctic Arctowski Station (King George Island, South Shetland Islands) have been investigated. Soil and sediment samples were collected from Petrified Forest Creek and Ornithologist Creek valleys. A total of 98 diatom taxa belonging to 30 different genera were recorded in the counts. Nine taxa have a marine origin but all together constitute only 0.14% of all counted valves. Three species: Staurosira pottiezii, Psammothidium germainioides and Sellaphora jamesrossensis dominated the flora. Some differences in the diatom assemblages were observed between soil samples from two stream valleys and between soil and sediments from the same catchment area. The highest species diversity was recorded in samples from the dried-up bed of the Ornithologist Creek, where both freshwater and terrestrial species were found. The soil samples from both investigated valleys showed a comparable number of species, but a different species composition. Based on the PCA analysis a clear separation of the assemblages from both creeks could be observed.

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Published

2020-11-24

How to Cite

Noga, Teresa, et al. “Limno-Terrestrial Diatom Flora in Two Stream Valleys Near Arctowski Station, King George Island, Antarctica”. Polish Polar Research, vol. 41, no. 4, Nov. 2020, pp. 289–314, doi:10.24425/ppr.2020.134793.

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