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Polish Botanical Journal

The Journal of Polish Academy of Sciences, W. Szafer Institute of Botany

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Late quaternary Nupela taxa of Retezat Mts (S. Carpathians), with description of Nupela pocsii sp. nov. (Bacillariophyceae)

Krisztina Buczkó
  • Corresponding author
  • Department of Botany, Hungarian Natural History Museum, Könyves Kálmán krt. 40. H-1476 Budapest, Hungary
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/ Agata Z. Wojtal
  • Corresponding author
  • Department of Phycology, W. Szafer Institute of Botany, Polish Academy of Sciences; Lubicz 46, 31-512 Kraków, Poland
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/ Enikő K. Magyari
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  • Research Group for Paleontology, Hungarian Academy of Sciences – Hungarian Natural History Museum, Budapest, Pázmány Péter sétány, 1/C Hungary
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Published Online: 2013-12-31 | DOI: https://doi.org/10.2478/pbj-2013-0059

Abstract

Nupela pocsii Buczkó & Wojtal, sp. nov., a new species from the Retezat Mountains (S. Carpathians), is described. High asymmetry (along apical and transapical axes and in raphe pattern) and small dimensions are the most characteristic features of this taxon. Nupela pocsii was found during paleolimnological research in early Holocene sediment of Lake Brazi. Seven other representatives of the genus Nupela were detected in high-resolution diatom analyses of three lake sediment sequences of the Retezat Mts: Nupela fennica (Hustedt) Lange-Bertalot, N. imperfecta (Schimanski) Lange-Bertalot, N. impexiformis (Lange-Bertalot) Lange-Bertalot, N. lapidosa (Krasske) Lange-Bertalot, N. paludigena (R. P. Scherer) Lange-Bertalot, N. vitiosa (Schimanski) Siver & Hamilton and an unidentified Nupela Vyverman & Compere species. Our results suggest high diversity of oligotraphenic species in these mountain lakes during their ontogeny, which began 17,000-15,000 years ago. In addition to the newly described species this is also the first record of N. paludigena in European lakes, although its occurrence was previously documented by SEM and LM from Lake Saint Anna without correct identification.

Keywords: diatoms; Nupela; oligotrophy; paleolimnology; Retezat Mountains; South Carpathians

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About the article

Published Online: 2013-12-31

Published in Print: 2013-12-01


Citation Information: Polish Botanical Journal, ISSN (Online) 2084-4352, DOI: https://doi.org/10.2478/pbj-2013-0059.

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