Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators
Due to the Arctic amplification effect, the Svalbard archipelago is an important area for studying ongoing environmental changes. However, its marine ecosystem is extremely complex. In this study, we analyze modern assemblages of dinoflagellate cysts (dinocysts) and benthic foraminifera from surface...
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Language: | English |
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Elsevier BV
2023
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Online Access: | https://archimer.ifremer.fr/doc/00844/95643/103410.pdf https://archimer.ifremer.fr/doc/00844/95643/103411.zip https://doi.org/10.1016/j.oceano.2023.06.007 https://archimer.ifremer.fr/doc/00844/95643/ |
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ftarchimer:oai:archimer.ifremer.fr:95643 2023-12-24T10:14:33+01:00 Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators Telesiński, Maciej M. Pospelova, Vera Mertens, Kenneth Kucharska, Małgorzata Zajączkowski, Marek 2023-10 application/pdf https://archimer.ifremer.fr/doc/00844/95643/103410.pdf https://archimer.ifremer.fr/doc/00844/95643/103411.zip https://doi.org/10.1016/j.oceano.2023.06.007 https://archimer.ifremer.fr/doc/00844/95643/ eng eng Elsevier BV https://archimer.ifremer.fr/doc/00844/95643/103410.pdf https://archimer.ifremer.fr/doc/00844/95643/103411.zip doi:10.1016/j.oceano.2023.06.007 https://archimer.ifremer.fr/doc/00844/95643/ info:eu-repo/semantics/openAccess restricted use Oceanologia (0078-3234) (Elsevier BV), 2023-10 , Vol. 65 , N. 4 , P. 571-594 North Atlantic Nordic Seas Sea ice Primary productivity Fjords Sediments Chlorophyll-a text Article info:eu-repo/semantics/article 2023 ftarchimer https://doi.org/10.1016/j.oceano.2023.06.007 2023-11-28T23:51:15Z Due to the Arctic amplification effect, the Svalbard archipelago is an important area for studying ongoing environmental changes. However, its marine ecosystem is extremely complex. In this study, we analyze modern assemblages of dinoflagellate cysts (dinocysts) and benthic foraminifera from surface sediment samples around Svalbard. We use multivariate statistical analyses to examine relationships between environmental conditions (summer and winter sea surface temperature and salinity, sea-ice cover, etc.) and both microfossil groups to evaluate their use as proxies for reconstructions of the marine environment in the region. Our results show that the most important factor controlling the environment around Svalbard is the Atlantic Water which mostly impacts the western coast, but its influence reaches as far as the eastern coast of Nordaustlandet. However, on a local scale, such factors as the sea-ice cover, the presence of tidewater glaciers, or even the morphology and hydrology of fjords become increasingly important. We found that two dinocyst species, cysts of Polarella glacialis and Echinidinium karaense, can be considered regional winter drift ice indicators. The relationships between environmental parameters and benthic foraminiferal assemblages are much more difficult to interpret. Although statistical analysis shows a correlation of benthic foraminiferal species with various environmental parameters, this correlation might be somewhat coincidental and caused by other factors not analyzed in this study. Nevertheless, the use of two complementary microfossil groups as (paleo)environmental indicators can provide a more comprehensive picture of the environmental conditions. Article in Journal/Newspaper Arctic Foraminifera* Nordaustlandet Nordic Seas North Atlantic Sea ice Svalbard Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Arctic Svalbard Svalbard Archipelago Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) Oceanologia 65 4 571 594 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
North Atlantic Nordic Seas Sea ice Primary productivity Fjords Sediments Chlorophyll-a |
spellingShingle |
North Atlantic Nordic Seas Sea ice Primary productivity Fjords Sediments Chlorophyll-a Telesiński, Maciej M. Pospelova, Vera Mertens, Kenneth Kucharska, Małgorzata Zajączkowski, Marek Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
topic_facet |
North Atlantic Nordic Seas Sea ice Primary productivity Fjords Sediments Chlorophyll-a |
description |
Due to the Arctic amplification effect, the Svalbard archipelago is an important area for studying ongoing environmental changes. However, its marine ecosystem is extremely complex. In this study, we analyze modern assemblages of dinoflagellate cysts (dinocysts) and benthic foraminifera from surface sediment samples around Svalbard. We use multivariate statistical analyses to examine relationships between environmental conditions (summer and winter sea surface temperature and salinity, sea-ice cover, etc.) and both microfossil groups to evaluate their use as proxies for reconstructions of the marine environment in the region. Our results show that the most important factor controlling the environment around Svalbard is the Atlantic Water which mostly impacts the western coast, but its influence reaches as far as the eastern coast of Nordaustlandet. However, on a local scale, such factors as the sea-ice cover, the presence of tidewater glaciers, or even the morphology and hydrology of fjords become increasingly important. We found that two dinocyst species, cysts of Polarella glacialis and Echinidinium karaense, can be considered regional winter drift ice indicators. The relationships between environmental parameters and benthic foraminiferal assemblages are much more difficult to interpret. Although statistical analysis shows a correlation of benthic foraminiferal species with various environmental parameters, this correlation might be somewhat coincidental and caused by other factors not analyzed in this study. Nevertheless, the use of two complementary microfossil groups as (paleo)environmental indicators can provide a more comprehensive picture of the environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Telesiński, Maciej M. Pospelova, Vera Mertens, Kenneth Kucharska, Małgorzata Zajączkowski, Marek |
author_facet |
Telesiński, Maciej M. Pospelova, Vera Mertens, Kenneth Kucharska, Małgorzata Zajączkowski, Marek |
author_sort |
Telesiński, Maciej M. |
title |
Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
title_short |
Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
title_full |
Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
title_fullStr |
Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
title_full_unstemmed |
Dinoflagellate cysts and benthic foraminifera from surface sediments of Svalbard fjords and shelves as paleoenvironmental indicators |
title_sort |
dinoflagellate cysts and benthic foraminifera from surface sediments of svalbard fjords and shelves as paleoenvironmental indicators |
publisher |
Elsevier BV |
publishDate |
2023 |
url |
https://archimer.ifremer.fr/doc/00844/95643/103410.pdf https://archimer.ifremer.fr/doc/00844/95643/103411.zip https://doi.org/10.1016/j.oceano.2023.06.007 https://archimer.ifremer.fr/doc/00844/95643/ |
long_lat |
ENVELOPE(22.400,22.400,79.800,79.800) |
geographic |
Arctic Svalbard Svalbard Archipelago Nordaustlandet |
geographic_facet |
Arctic Svalbard Svalbard Archipelago Nordaustlandet |
genre |
Arctic Foraminifera* Nordaustlandet Nordic Seas North Atlantic Sea ice Svalbard |
genre_facet |
Arctic Foraminifera* Nordaustlandet Nordic Seas North Atlantic Sea ice Svalbard |
op_source |
Oceanologia (0078-3234) (Elsevier BV), 2023-10 , Vol. 65 , N. 4 , P. 571-594 |
op_relation |
https://archimer.ifremer.fr/doc/00844/95643/103410.pdf https://archimer.ifremer.fr/doc/00844/95643/103411.zip doi:10.1016/j.oceano.2023.06.007 https://archimer.ifremer.fr/doc/00844/95643/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.oceano.2023.06.007 |
container_title |
Oceanologia |
container_volume |
65 |
container_issue |
4 |
container_start_page |
571 |
op_container_end_page |
594 |
_version_ |
1786195146919903232 |