Sea ice algae in the White and Barents seas: composition and origin
To examine algae populations, three expeditions (in March 2001, April 2002 and February 2003) were conducted in the Guba Chupa (Chupa Estuary; north-western White Sea), and one cruise was carried out in the open part of the White Sea in April 2003 and in the northern part of the Barents Sea in July...
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Norwegian Polar Institute
2005
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ftjpolarres:oai:journals.openacademia.net:article/2063 2023-05-15T15:38:48+02:00 Sea ice algae in the White and Barents seas: composition and origin Ratkova, Tatjana N. Wassmann, Paul 2005-07-01 application/pdf https://polarresearch.net/index.php/polar/article/view/2063 https://doi.org/10.3402/polar.v24i1.6256 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2063/5314 https://polarresearch.net/index.php/polar/article/view/2063 doi:10.3402/polar.v24i1.6256 Copyright (c) 2018 Polar Research Polar Research; Vol 24, No 1-2 (2005); 95-110 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2005 ftjpolarres https://doi.org/10.3402/polar.v24i1.6256 2021-11-11T19:11:56Z To examine algae populations, three expeditions (in March 2001, April 2002 and February 2003) were conducted in the Guba Chupa (Chupa Estuary; north-western White Sea), and one cruise was carried out in the open part of the White Sea in April 2003 and in the northern part of the Barents Sea in July 2001. Sea ice algae and phytoplankton composition and abundance and the content of sediment traps under the land-fast ice in the White Sea and annual and multi-year pack ice in the Barents Sea were investigated. The community in land-fast sea ice was dominated by pennate diatoms and its composition was more closely related to that of the underlying sediments than was the community of the pack ice, which was dominated by flagellates, dinoflagellates and centric diatoms. Algae were far more abundant in land-fast ice: motile benthic and ice-benthic species found favourable conditions in the ice. The pack ice community was more closely related to that of the surrounding water. It originated from plankton incorporation during sea ice formation and during seawater flood events. An additional source for ice colonization may be multi-year ice. Algae may be released from the ice during brine drainage or sea ice melting. Many sea ice algae developed spores before the ice melt. These algae were observed in the above-bottom sediment traps all year around. Three possible fates of ice algae can be distinguished: 1) suspension in the water column, 2) sinking to the bottom and 3) ingestion by herbivores in the ice, at the ice-water interface or in the water column. Article in Journal/Newspaper Barents Sea ice algae Polar Research Sea ice White Sea Polar Research (E-Journal) Barents Sea White Sea Chupa ENVELOPE(33.055,33.055,66.270,66.270) Guba Chupa ENVELOPE(33.575,33.575,66.324,66.324) Polar Research 24 1-2 95 110 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
To examine algae populations, three expeditions (in March 2001, April 2002 and February 2003) were conducted in the Guba Chupa (Chupa Estuary; north-western White Sea), and one cruise was carried out in the open part of the White Sea in April 2003 and in the northern part of the Barents Sea in July 2001. Sea ice algae and phytoplankton composition and abundance and the content of sediment traps under the land-fast ice in the White Sea and annual and multi-year pack ice in the Barents Sea were investigated. The community in land-fast sea ice was dominated by pennate diatoms and its composition was more closely related to that of the underlying sediments than was the community of the pack ice, which was dominated by flagellates, dinoflagellates and centric diatoms. Algae were far more abundant in land-fast ice: motile benthic and ice-benthic species found favourable conditions in the ice. The pack ice community was more closely related to that of the surrounding water. It originated from plankton incorporation during sea ice formation and during seawater flood events. An additional source for ice colonization may be multi-year ice. Algae may be released from the ice during brine drainage or sea ice melting. Many sea ice algae developed spores before the ice melt. These algae were observed in the above-bottom sediment traps all year around. Three possible fates of ice algae can be distinguished: 1) suspension in the water column, 2) sinking to the bottom and 3) ingestion by herbivores in the ice, at the ice-water interface or in the water column. |
format |
Article in Journal/Newspaper |
author |
Ratkova, Tatjana N. Wassmann, Paul |
spellingShingle |
Ratkova, Tatjana N. Wassmann, Paul Sea ice algae in the White and Barents seas: composition and origin |
author_facet |
Ratkova, Tatjana N. Wassmann, Paul |
author_sort |
Ratkova, Tatjana N. |
title |
Sea ice algae in the White and Barents seas: composition and origin |
title_short |
Sea ice algae in the White and Barents seas: composition and origin |
title_full |
Sea ice algae in the White and Barents seas: composition and origin |
title_fullStr |
Sea ice algae in the White and Barents seas: composition and origin |
title_full_unstemmed |
Sea ice algae in the White and Barents seas: composition and origin |
title_sort |
sea ice algae in the white and barents seas: composition and origin |
publisher |
Norwegian Polar Institute |
publishDate |
2005 |
url |
https://polarresearch.net/index.php/polar/article/view/2063 https://doi.org/10.3402/polar.v24i1.6256 |
long_lat |
ENVELOPE(33.055,33.055,66.270,66.270) ENVELOPE(33.575,33.575,66.324,66.324) |
geographic |
Barents Sea White Sea Chupa Guba Chupa |
geographic_facet |
Barents Sea White Sea Chupa Guba Chupa |
genre |
Barents Sea ice algae Polar Research Sea ice White Sea |
genre_facet |
Barents Sea ice algae Polar Research Sea ice White Sea |
op_source |
Polar Research; Vol 24, No 1-2 (2005); 95-110 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2063/5314 https://polarresearch.net/index.php/polar/article/view/2063 doi:10.3402/polar.v24i1.6256 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v24i1.6256 |
container_title |
Polar Research |
container_volume |
24 |
container_issue |
1-2 |
container_start_page |
95 |
op_container_end_page |
110 |
_version_ |
1766370143178326016 |