Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities
Water bears (Tardigrada) are known as one of the most extremophile animals in the world. They inhabit environments from the deepest parts of the oceans up to the highest mountains. One of the most extreme and still poorly studied habitats which tardigrades inhabit are cryoconite holes. We analysed t...
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ftczacademyscien:oai:asep.lib.cas.cz:CavUnEpca/0461544 2024-09-15T17:59:53+00:00 Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities Zawierucha, K. Vonnahme, T.R. Devetter, M. (Miloslav) Kolicka, M. Ostrowska, M. Chmielewski, S. Kosicki, J.Z. 2016 https://doi.org/10.1515/popore-2016-0009 http://hdl.handle.net/11104/0264346 eng eng doi:10.1515/popore-2016-0009 urn:pissn: 0138-0338 urn:eissn: 2081-8262 http://hdl.handle.net/11104/0264346 Arctic cryoconite holes ecology glaciers Svalbard Tardigrada info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftczacademyscien https://doi.org/10.1515/popore-2016-0009 2024-08-19T05:33:00Z Water bears (Tardigrada) are known as one of the most extremophile animals in the world. They inhabit environments from the deepest parts of the oceans up to the highest mountains. One of the most extreme and still poorly studied habitats which tardigrades inhabit are cryoconite holes. We analysed the relation between area, depth, elevation and tardigrades densities in cryoconite holes on four glaciers on Spitsbergen. The mean (±SD) of cryoconite area was 1287.21±2400.8 cm2, while the depth was on average 10.8±11.2 cm, the elevation 172.6±109.66 m a.s.l., and tardigrade density 24.9±33.0 individuals per gram of wet material (n = 38). The densities of tardigrades on Hans Glacier reached values of up to 168 ind. cm3, 104 ind. g-1 wet weight, and 275 ind. g-1 dry weight. The densities of tardigrades of the three glaciers in Billefjorden were up to 82 ind. cm2, 326 ind. g-1 wet weight and 624 ind. g-1 dry weight. Surprisingly, although the model included area, depth and elevation as independent variables, it cannot explain Tardigrada density in cryoconite holes. We propose that due to the rapid melting of the glacier surface in the Arctic, the constant flushing of cryoconite sediments, and inter-hole water-sediment mixing, the functioning of these ecosystems is disrupted. We conclude that cryoconite holes are dynamic ecosystems for microinvertebrates in the Arctic. Article in Journal/Newspaper Billefjorden glacier Svalbard Spitsbergen Tardigrade The Czech Academy of Sciences: Publication Activity (ASEP) Polish Polar Research 37 2 325 334 |
institution |
Open Polar |
collection |
The Czech Academy of Sciences: Publication Activity (ASEP) |
op_collection_id |
ftczacademyscien |
language |
English |
topic |
Arctic cryoconite holes ecology glaciers Svalbard Tardigrada |
spellingShingle |
Arctic cryoconite holes ecology glaciers Svalbard Tardigrada Zawierucha, K. Vonnahme, T.R. Devetter, M. (Miloslav) Kolicka, M. Ostrowska, M. Chmielewski, S. Kosicki, J.Z. Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
topic_facet |
Arctic cryoconite holes ecology glaciers Svalbard Tardigrada |
description |
Water bears (Tardigrada) are known as one of the most extremophile animals in the world. They inhabit environments from the deepest parts of the oceans up to the highest mountains. One of the most extreme and still poorly studied habitats which tardigrades inhabit are cryoconite holes. We analysed the relation between area, depth, elevation and tardigrades densities in cryoconite holes on four glaciers on Spitsbergen. The mean (±SD) of cryoconite area was 1287.21±2400.8 cm2, while the depth was on average 10.8±11.2 cm, the elevation 172.6±109.66 m a.s.l., and tardigrade density 24.9±33.0 individuals per gram of wet material (n = 38). The densities of tardigrades on Hans Glacier reached values of up to 168 ind. cm3, 104 ind. g-1 wet weight, and 275 ind. g-1 dry weight. The densities of tardigrades of the three glaciers in Billefjorden were up to 82 ind. cm2, 326 ind. g-1 wet weight and 624 ind. g-1 dry weight. Surprisingly, although the model included area, depth and elevation as independent variables, it cannot explain Tardigrada density in cryoconite holes. We propose that due to the rapid melting of the glacier surface in the Arctic, the constant flushing of cryoconite sediments, and inter-hole water-sediment mixing, the functioning of these ecosystems is disrupted. We conclude that cryoconite holes are dynamic ecosystems for microinvertebrates in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Zawierucha, K. Vonnahme, T.R. Devetter, M. (Miloslav) Kolicka, M. Ostrowska, M. Chmielewski, S. Kosicki, J.Z. |
author_facet |
Zawierucha, K. Vonnahme, T.R. Devetter, M. (Miloslav) Kolicka, M. Ostrowska, M. Chmielewski, S. Kosicki, J.Z. |
author_sort |
Zawierucha, K. |
title |
Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
title_short |
Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
title_full |
Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
title_fullStr |
Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
title_full_unstemmed |
Area, depth and elevation of cryoconite holes in the Arctic do not influence Tardigrada densities |
title_sort |
area, depth and elevation of cryoconite holes in the arctic do not influence tardigrada densities |
publishDate |
2016 |
url |
https://doi.org/10.1515/popore-2016-0009 http://hdl.handle.net/11104/0264346 |
genre |
Billefjorden glacier Svalbard Spitsbergen Tardigrade |
genre_facet |
Billefjorden glacier Svalbard Spitsbergen Tardigrade |
op_relation |
doi:10.1515/popore-2016-0009 urn:pissn: 0138-0338 urn:eissn: 2081-8262 http://hdl.handle.net/11104/0264346 |
op_doi |
https://doi.org/10.1515/popore-2016-0009 |
container_title |
Polish Polar Research |
container_volume |
37 |
container_issue |
2 |
container_start_page |
325 |
op_container_end_page |
334 |
_version_ |
1810437013105541120 |