Benthic diatoms (Bacillariophyta) from seepages and streams on James Ross Island (NW Weddell Sea, Antarctica)

Kopalová, Kateřina

doi:10.5091/plecevo.2012.639

Cited by 44 publications

(41 citation statements)

References 40 publications

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“…Our samples reported in this study, i.e. those collected from streams and seepages fed by melting snow at Komarek slopes showed lower taxonomical diversity than the earlier samples from lakes (Skácelová et al 2013) and soil crusts (Skácelová et Barták 2014) from James Ross Island (Ha-wes et Brazier 1991, Kopalová et al 2012. in their study determined relatively broad spectrum of cyanobacterial species in seepages at Komarek slopes.…”

Section: Discussioncontrasting

confidence: 49%

“…In this study, we focused on seepages and streams located on the northern slopes of Berry Hill. The site has been studied with-in last decade with a special emphasis to biodiversity of cyanobacteria and diatoms (Elster et al 2008, Kopalová et al 2012. The seepages reported in our study are supplied by water primarily from frozen ground and melting snow fields covering hill tops and northern slopes below Berry Hill.…”

Section: Introductionmentioning

confidence: 97%

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Biodiversity of freshwater autotrophs in selected wet places in northern coastal ecosystems of James Ross Island

Skácelová¹,

Hrbáček²,

Chattová³

et al. 2015

Czech Polar Rep.

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Section: Discussioncontrasting

confidence: 49%

Section: Introductionmentioning

confidence: 97%

Biodiversity of freshwater autotrophs in selected wet places in northern coastal ecosystems of James Ross Island

Skácelová¹,

Hrbáček²,

Chattová³

et al. 2015

Czech Polar Rep.

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“…Contrary to the Antarctic diatom flora, which has been recently revised based on a more narrow morphology-based species concept (ex. Van de Vijver et al 2010a, Kopalová et al 2012, Taylor et al 2014, the Arctic diatom morphological taxonomy is insufficient at this time to make fine-scale comparisons between habitats. Moreover, Pinseel (2014) have identified a high number of new diatom taxa ready to be described.…”

Section: Future Directions and Conclusionmentioning

confidence: 99%

Diatoms in cryoconite holes and adjacent proglacial freshwater sediments, Nordenskiöld glacier (Spitsbergen, High Arctic)

Vinšová¹,

Pinseel²,

Kohler³

et al. 2015

Czech Polar Rep.

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Cryoconite holes are small, extreme habitats, widespread in the ablation zones of glaciers worldwide. They can provide a suitable environment for microorganisms including bacteria, cyanobacteria, algae, fungi, and invertebrates. Diatoms have been previously recovered from cryoconite holes of Greenland and of Svalbard, and recent findings from Antarctica suggest that cryoconite holes may harbor a unique diatom flora distinct from other aquatic habitats nearby. In the present study, we characterize the diatom communities of Nordenskiöld glacier cryoconite holes in Billefjorden (Svalbard, Spitsbergen), and multivariate approaches were used to compare them with three freshwater localities in the immediate vicinity to investigate possible sources of the species pool. We found cryoconite holes to have similar or greater average genus-richness than adjacent lake/ ponds habitats, even though lower numbers of valves were recovered. Overall, cryoconite hole diatom communities differed significantly from those observed in lakes, suggesting that other sources actively contribute to these communities than nearby lakes alone. This further suggests that (i) diatoms present in cryoconite might not exclusively originate from aquatic habitats, but also from (semi-) terrestrial ones; and (ii) that a much wider area than the immediate surroundings should be considered as a possible source for cryoconite diatom flora

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“…Since then, apart from several sparse Stauroneis records from the latter region (Zidarova et al 2008;Kopalová et al 2012) and the description of one new taxon (Zidarova et al 2009), almost no new data for the genus Stauroneis in Maritime Antarctica were published, greatly limiting our knowledge on the diversity and biogeography of the genus in this region.…”

Section: Introductionmentioning

confidence: 99%

The genus Stauroneis (Bacillariophyta) from the South Shetland Islands and James Ross Island (Antarctica).

Zidarova¹,

Kopalová²,

Vijver³

2014

Fottea

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During a survey of the freshwater aquatic and limno-terrestrial diatom flora of the Maritime Antarctic Region, five taxa belonging to the genus Stauroneis that could not be identified were observed. Based on detailed LM and SEM observations, these five taxa have been described as new taxa: Stauroneis australobtusa sp. nov., S. acidojarensis sp. nov., S. delicata sp. nov., S. jamesrossensis sp. nov. and S. reichardtiopsis sp. nov. Comments are made on their taxonomic position and separation from other species in this genus. Brief notes on the ecology and distribution of the five taxa are added. A compiled list of all Stauroneis taxa present in the (sub-)Antarctic region is included in this paper and their biogeography based on the compiled data is discussed.

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Benthic diatoms (Bacillariophyta) from seepages and streams on James Ross Island (NW Weddell Sea, Antarctica)

Cited by 44 publications

References 40 publications

Biodiversity of freshwater autotrophs in selected wet places in northern coastal ecosystems of James Ross Island

Biodiversity of freshwater autotrophs in selected wet places in northern coastal ecosystems of James Ross Island

Diatoms in cryoconite holes and adjacent proglacial freshwater sediments, Nordenskiöld glacier (Spitsbergen, High Arctic)

The genus Stauroneis (Bacillariophyta) from the South Shetland Islands and James Ross Island (Antarctica).

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