Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions
The occurrence and distribution of dinoflagellate cysts in surface sediments from the Laptev Sea shelf and the adjacent continental margin has been studied in relation to surface water conditions. Assemblages were interpreted by visual inspection and Q-mode factor analysis. The inner Laptev shelf is...
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2001
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Online Access: | https://epic.awi.de/id/eprint/4588/ https://doi.org/10.1002/jqs.647 https://hdl.handle.net/10013/epic.15162 |
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ftawi:oai:epic.awi.de:4588 2023-09-05T13:15:50+02:00 Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions Kunz-Pirrung, Martina 2001 https://epic.awi.de/id/eprint/4588/ https://doi.org/10.1002/jqs.647 https://hdl.handle.net/10013/epic.15162 unknown Kunz-Pirrung, M. (2001) Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions , Journal of Quaternary Science, 16 (7), pp. 637-649 . doi:10.1002/jqs.647 <https://doi.org/10.1002/jqs.647> , hdl:10013/epic.15162 EPIC3Journal of Quaternary Science, 16(7), pp. 637-649, ISSN: 0267-8179 Article isiRev 2001 ftawi https://doi.org/10.1002/jqs.647 2023-08-22T19:44:50Z The occurrence and distribution of dinoflagellate cysts in surface sediments from the Laptev Sea shelf and the adjacent continental margin has been studied in relation to surface water conditions. Assemblages were interpreted by visual inspection and Q-mode factor analysis. The inner Laptev shelf is a type area for polar environments because of near absence of relatively warm waters from the Pacific or Atlantic oceans and an extensive seasonal sea-ice cover. Assemblages are of low diversity and are dominated by the cold water taxon Islandinium minutum and related morphotypes. The common occurrence of distinctive polykrikoid cyst morphotypes is an indicator of polar environments. Furthermore, strong supply of freshwater in summer influences the surface water conditions, and is a major factor controlling the occurrence and distribution of dinoflagellate cysts. The dinoflagellate cysts Nematosphaeropsis labyrinthus and Operculodinium centrocarpum are restricted to the continental margin suggesting a relation to the inflow of relatively warm Atlantic waters along the Eurasian continental margin. An abundance maximum of Brigantedinium spp. at the shelf break is related to the mean position of the marginal ice zone. Article in Journal/Newspaper Arctic Arctic Arctic Ocean laptev Laptev Sea Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Laptev Sea Pacific Journal of Quaternary Science 16 7 637 649 |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The occurrence and distribution of dinoflagellate cysts in surface sediments from the Laptev Sea shelf and the adjacent continental margin has been studied in relation to surface water conditions. Assemblages were interpreted by visual inspection and Q-mode factor analysis. The inner Laptev shelf is a type area for polar environments because of near absence of relatively warm waters from the Pacific or Atlantic oceans and an extensive seasonal sea-ice cover. Assemblages are of low diversity and are dominated by the cold water taxon Islandinium minutum and related morphotypes. The common occurrence of distinctive polykrikoid cyst morphotypes is an indicator of polar environments. Furthermore, strong supply of freshwater in summer influences the surface water conditions, and is a major factor controlling the occurrence and distribution of dinoflagellate cysts. The dinoflagellate cysts Nematosphaeropsis labyrinthus and Operculodinium centrocarpum are restricted to the continental margin suggesting a relation to the inflow of relatively warm Atlantic waters along the Eurasian continental margin. An abundance maximum of Brigantedinium spp. at the shelf break is related to the mean position of the marginal ice zone. |
format |
Article in Journal/Newspaper |
author |
Kunz-Pirrung, Martina |
spellingShingle |
Kunz-Pirrung, Martina Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
author_facet |
Kunz-Pirrung, Martina |
author_sort |
Kunz-Pirrung, Martina |
title |
Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
title_short |
Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
title_full |
Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
title_fullStr |
Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
title_full_unstemmed |
Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions |
title_sort |
dinoflagellate cyst assemblages in surface sediments of the laptev sea region (arctic ocean) and their relationship to hydrographic conditions |
publishDate |
2001 |
url |
https://epic.awi.de/id/eprint/4588/ https://doi.org/10.1002/jqs.647 https://hdl.handle.net/10013/epic.15162 |
geographic |
Arctic Arctic Ocean Laptev Sea Pacific |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Pacific |
genre |
Arctic Arctic Arctic Ocean laptev Laptev Sea Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean laptev Laptev Sea Sea ice |
op_source |
EPIC3Journal of Quaternary Science, 16(7), pp. 637-649, ISSN: 0267-8179 |
op_relation |
Kunz-Pirrung, M. (2001) Dinoflagellate cyst assemblages in surface sediments of the Laptev Sea region (Arctic Ocean) and their relationship to hydrographic conditions , Journal of Quaternary Science, 16 (7), pp. 637-649 . doi:10.1002/jqs.647 <https://doi.org/10.1002/jqs.647> , hdl:10013/epic.15162 |
op_doi |
https://doi.org/10.1002/jqs.647 |
container_title |
Journal of Quaternary Science |
container_volume |
16 |
container_issue |
7 |
container_start_page |
637 |
op_container_end_page |
649 |
_version_ |
1776197659023900672 |