Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic
Despite recent great interest in glacier ecosystems in the continental Antarctic, little is known about their maritime counterparts. Our study presents descriptive data on cryoconite sediments and cryoconite holes on Ecology Glacier (King George Island) to accomplish three main objectives: (a) to id...
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ftunivsilesia:oai:rebus.us.edu.pl:20.500.12128/13887 2023-05-15T13:35:37+02:00 Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic Buda, Jakub Łokas, Edyta Pietryka, Mirosława Richter, Dorota Magowski, Wojciech Iakovenko, Nataliia S. Porazinska, Dorota L. Budzik, Tomasz Grabiec, Mariusz Grzesiak, Jakub Klimaszyk, Piotr Gaca, Paweł Zawierucha, Krzysztof 2020 https://hdl.handle.net/20.500.12128/13887 https://doi.org/10.1016/j.scitotenv.2020.138112 en eng "Science of the Total Environment" Vol. 724 (2020), art. no 138112 0048-9697 http://hdl.handle.net/20.500.12128/13887 doi:10.1016/j.scitotenv.2020.138112 Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ CC-BY-NC-ND Glacial ecosystems Microbial communities Acari and freshwater Rotifera Algae Antarctic cryoconite Biodiversity Contamination of polar regions info:eu-repo/semantics/article 2020 ftunivsilesia https://doi.org/20.500.12128/13887 https://doi.org/10.1016/j.scitotenv.2020.138112 2022-12-31T20:13:36Z Despite recent great interest in glacier ecosystems in the continental Antarctic, little is known about their maritime counterparts. Our study presents descriptive data on cryoconite sediments and cryoconite holes on Ecology Glacier (King George Island) to accomplish three main objectives: (a) to identify main eukaryotic (algae, invertebrates) and prokaryotic (cyanobacteria) components of microbial communities; (b) to provide a “baseline” of community composition, organic matter and artificial contamination; and (c) to identify key abiotic factors that might be important in community assembly. Cryoconite holes were sampled along an altitudinal gradient of Ecology Glacier in January, mid Austral Summer 2017. Cryoconite holes located in lower altitude were deeper than those located in the middle and the highest altitude. Seventeen species of algae and cyanobacteria with biomass of 0.79 to 5.37 μg/cm3 have been found in sediments. Dominant species were cyanobacterial Pseudanabaena frigida and Bacillariophyceae Microcostaus sp. Biomass of Bacillariophyceae was significantly higher than that of Chlorophyta and Cyanobacteria. We found three species of rotifers (potentially two new to science) and for the first time a glacier dwelling Acari (suspension feeder, Nanorchestes nivalis). Organic matter content ranged from 5.4% to 7.6%. Investigated artificial radionuclides included 137Cs, 238Pu, 239+240Pu and 241Am. 210Pb seems to be related to organic matter content. Overall, cryoconite holes on Ecology Glacier present unique habitats that serve as biodiversity hotspots of psychrophiles, source of organic matter, matrices for radioactivity tracking and model for observing changes in supraglacial ecosystems in the maritime Antarctic. Article in Journal/Newspaper Antarc* Antarctic King George Island The Repository of the University of Silesia (RE-BUŚ) Antarctic Austral Ecology Glacier ENVELOPE(-58.476,-58.476,-62.177,-62.177) King George Island Science of The Total Environment 724 138112 |
institution |
Open Polar |
collection |
The Repository of the University of Silesia (RE-BUŚ) |
op_collection_id |
ftunivsilesia |
language |
English |
topic |
Glacial ecosystems Microbial communities Acari and freshwater Rotifera Algae Antarctic cryoconite Biodiversity Contamination of polar regions |
spellingShingle |
Glacial ecosystems Microbial communities Acari and freshwater Rotifera Algae Antarctic cryoconite Biodiversity Contamination of polar regions Buda, Jakub Łokas, Edyta Pietryka, Mirosława Richter, Dorota Magowski, Wojciech Iakovenko, Nataliia S. Porazinska, Dorota L. Budzik, Tomasz Grabiec, Mariusz Grzesiak, Jakub Klimaszyk, Piotr Gaca, Paweł Zawierucha, Krzysztof Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
topic_facet |
Glacial ecosystems Microbial communities Acari and freshwater Rotifera Algae Antarctic cryoconite Biodiversity Contamination of polar regions |
description |
Despite recent great interest in glacier ecosystems in the continental Antarctic, little is known about their maritime counterparts. Our study presents descriptive data on cryoconite sediments and cryoconite holes on Ecology Glacier (King George Island) to accomplish three main objectives: (a) to identify main eukaryotic (algae, invertebrates) and prokaryotic (cyanobacteria) components of microbial communities; (b) to provide a “baseline” of community composition, organic matter and artificial contamination; and (c) to identify key abiotic factors that might be important in community assembly. Cryoconite holes were sampled along an altitudinal gradient of Ecology Glacier in January, mid Austral Summer 2017. Cryoconite holes located in lower altitude were deeper than those located in the middle and the highest altitude. Seventeen species of algae and cyanobacteria with biomass of 0.79 to 5.37 μg/cm3 have been found in sediments. Dominant species were cyanobacterial Pseudanabaena frigida and Bacillariophyceae Microcostaus sp. Biomass of Bacillariophyceae was significantly higher than that of Chlorophyta and Cyanobacteria. We found three species of rotifers (potentially two new to science) and for the first time a glacier dwelling Acari (suspension feeder, Nanorchestes nivalis). Organic matter content ranged from 5.4% to 7.6%. Investigated artificial radionuclides included 137Cs, 238Pu, 239+240Pu and 241Am. 210Pb seems to be related to organic matter content. Overall, cryoconite holes on Ecology Glacier present unique habitats that serve as biodiversity hotspots of psychrophiles, source of organic matter, matrices for radioactivity tracking and model for observing changes in supraglacial ecosystems in the maritime Antarctic. |
format |
Article in Journal/Newspaper |
author |
Buda, Jakub Łokas, Edyta Pietryka, Mirosława Richter, Dorota Magowski, Wojciech Iakovenko, Nataliia S. Porazinska, Dorota L. Budzik, Tomasz Grabiec, Mariusz Grzesiak, Jakub Klimaszyk, Piotr Gaca, Paweł Zawierucha, Krzysztof |
author_facet |
Buda, Jakub Łokas, Edyta Pietryka, Mirosława Richter, Dorota Magowski, Wojciech Iakovenko, Nataliia S. Porazinska, Dorota L. Budzik, Tomasz Grabiec, Mariusz Grzesiak, Jakub Klimaszyk, Piotr Gaca, Paweł Zawierucha, Krzysztof |
author_sort |
Buda, Jakub |
title |
Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
title_short |
Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
title_full |
Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
title_fullStr |
Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
title_full_unstemmed |
Biotope and biocenosis of cryoconite hole ecosystems on Ecology Glacier in the maritime Antarctic |
title_sort |
biotope and biocenosis of cryoconite hole ecosystems on ecology glacier in the maritime antarctic |
publishDate |
2020 |
url |
https://hdl.handle.net/20.500.12128/13887 https://doi.org/10.1016/j.scitotenv.2020.138112 |
long_lat |
ENVELOPE(-58.476,-58.476,-62.177,-62.177) |
geographic |
Antarctic Austral Ecology Glacier King George Island |
geographic_facet |
Antarctic Austral Ecology Glacier King George Island |
genre |
Antarc* Antarctic King George Island |
genre_facet |
Antarc* Antarctic King George Island |
op_relation |
"Science of the Total Environment" Vol. 724 (2020), art. no 138112 0048-9697 http://hdl.handle.net/20.500.12128/13887 doi:10.1016/j.scitotenv.2020.138112 |
op_rights |
Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.12128/13887 https://doi.org/10.1016/j.scitotenv.2020.138112 |
container_title |
Science of The Total Environment |
container_volume |
724 |
container_start_page |
138112 |
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1766068068312678400 |