Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard)
As High Arctic environments are particularly sensitive to global and regional climate changes, a growing number of studies have focused on that region. It has been shown that living and fossil diatoms can be successfully used to track environmental changes in polar habitats. Nevertheless, the diatom...
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ftpubmed:oai:pubmedcentral.nih.gov:7089652 2023-05-15T14:54:16+02:00 Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) Zgrundo, Aleksandra Wojtasik, Barbara Convey, Peter Majewska, Roksana 2016-08-04 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089652/ https://doi.org/10.1007/s00300-016-2014-y en eng Springer Berlin Heidelberg http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089652/ http://dx.doi.org/10.1007/s00300-016-2014-y © The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. CC-BY Original Paper Text 2016 ftpubmed https://doi.org/10.1007/s00300-016-2014-y 2020-03-29T01:48:12Z As High Arctic environments are particularly sensitive to global and regional climate changes, a growing number of studies have focused on that region. It has been shown that living and fossil diatoms can be successfully used to track environmental changes in polar habitats. Nevertheless, the diatom flora of many Arctic areas remains unknown. The present study set out to examine the diatom flora in the rarely visited and near-pristine zone of northern Spitsbergen. Examination by light and scanning electron microscopy of 25 sediment samples, collected in fjords, tidal plains and lakes, indicated significant differences between the diatom assemblages identified in lakes located within different fjord watersheds. Altogether, 96 diatom taxa (46 genera) were found. The most abundant species (Achnanthidium minutissimum, Staurosirella pinnata and Nitzschia alpina) occurred in at least eight of the 11 investigated lakes. Assemblages from the Woodfjorden region were characterized by the presence of Cavinula pseudoscutiformis and Encyonema reichardtii, along with Navicula spp., which coincided with relatively low conductivity (34–58.7 µS cm(−1)) and near-neutral pH (7.2–7.5). Diatom assemblages found in the Wijdefjorden area were typically characterized by Denticula kuetzingii and Nitzschia inconspicua, with these lakes generally having higher water conductivity (>184 µS cm(−1)) and pH (7.5–8.1) conditions. Conductivity, biogenic silica concentration and water temperature were indicated as significant predictors of diatom community species composition and structure. No diatom frustules were found in fjord and tidal plain sediments. The effects of selected environmental factors on diatom assemblage formation are discussed. Text Arctic Svalbard Wijdefjord* Woodfjord* Woodfjorden Spitsbergen PubMed Central (PMC) Arctic Svalbard Wijdefjorden ENVELOPE(15.569,15.569,79.543,79.543) Woodfjorden ENVELOPE(14.000,14.000,79.833,79.833) Polar Biology 40 4 873 890 |
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Open Polar |
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PubMed Central (PMC) |
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ftpubmed |
language |
English |
topic |
Original Paper |
spellingShingle |
Original Paper Zgrundo, Aleksandra Wojtasik, Barbara Convey, Peter Majewska, Roksana Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
topic_facet |
Original Paper |
description |
As High Arctic environments are particularly sensitive to global and regional climate changes, a growing number of studies have focused on that region. It has been shown that living and fossil diatoms can be successfully used to track environmental changes in polar habitats. Nevertheless, the diatom flora of many Arctic areas remains unknown. The present study set out to examine the diatom flora in the rarely visited and near-pristine zone of northern Spitsbergen. Examination by light and scanning electron microscopy of 25 sediment samples, collected in fjords, tidal plains and lakes, indicated significant differences between the diatom assemblages identified in lakes located within different fjord watersheds. Altogether, 96 diatom taxa (46 genera) were found. The most abundant species (Achnanthidium minutissimum, Staurosirella pinnata and Nitzschia alpina) occurred in at least eight of the 11 investigated lakes. Assemblages from the Woodfjorden region were characterized by the presence of Cavinula pseudoscutiformis and Encyonema reichardtii, along with Navicula spp., which coincided with relatively low conductivity (34–58.7 µS cm(−1)) and near-neutral pH (7.2–7.5). Diatom assemblages found in the Wijdefjorden area were typically characterized by Denticula kuetzingii and Nitzschia inconspicua, with these lakes generally having higher water conductivity (>184 µS cm(−1)) and pH (7.5–8.1) conditions. Conductivity, biogenic silica concentration and water temperature were indicated as significant predictors of diatom community species composition and structure. No diatom frustules were found in fjord and tidal plain sediments. The effects of selected environmental factors on diatom assemblage formation are discussed. |
format |
Text |
author |
Zgrundo, Aleksandra Wojtasik, Barbara Convey, Peter Majewska, Roksana |
author_facet |
Zgrundo, Aleksandra Wojtasik, Barbara Convey, Peter Majewska, Roksana |
author_sort |
Zgrundo, Aleksandra |
title |
Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
title_short |
Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
title_full |
Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
title_fullStr |
Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
title_full_unstemmed |
Diatom communities in the High Arctic aquatic habitats of northern Spitsbergen (Svalbard) |
title_sort |
diatom communities in the high arctic aquatic habitats of northern spitsbergen (svalbard) |
publisher |
Springer Berlin Heidelberg |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089652/ https://doi.org/10.1007/s00300-016-2014-y |
long_lat |
ENVELOPE(15.569,15.569,79.543,79.543) ENVELOPE(14.000,14.000,79.833,79.833) |
geographic |
Arctic Svalbard Wijdefjorden Woodfjorden |
geographic_facet |
Arctic Svalbard Wijdefjorden Woodfjorden |
genre |
Arctic Svalbard Wijdefjord* Woodfjord* Woodfjorden Spitsbergen |
genre_facet |
Arctic Svalbard Wijdefjord* Woodfjord* Woodfjorden Spitsbergen |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7089652/ http://dx.doi.org/10.1007/s00300-016-2014-y |
op_rights |
© The Author(s) 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00300-016-2014-y |
container_title |
Polar Biology |
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40 |
container_issue |
4 |
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873 |
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890 |
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