Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard
A new dataset of benthic foraminiferal assemblages from Adventfjorden (tributary fjord of Isfjorden, West Spitsbergen) was compared with the results of a study conducted by Zajączkowski et al. (2010) in Hornsund (West Spitsbergen). According to Nilsen et al. (2016), Atlantic water inflow to the Isfj...
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ftdoajarticles:oai:doaj.org/article:a16c072c47214370980d877edcad8de2 2023-05-15T13:05:51+02:00 Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard Natalia Szymańska Joanna Pawłowska Małgorzata Kucharska Agnieszka Kujawa Magdalena Łącka Marek Zajączkowski 2017-10-01T00:00:00Z https://doi.org/10.1016/j.oceano.2017.04.006 https://doaj.org/article/a16c072c47214370980d877edcad8de2 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S0078323417300556 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2017.04.006 https://doaj.org/article/a16c072c47214370980d877edcad8de2 Oceanologia, Vol 59, Iss 4, Pp 525-540 (2017) Arctic Fjords Foraminifera Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1016/j.oceano.2017.04.006 2022-12-30T22:23:58Z A new dataset of benthic foraminiferal assemblages from Adventfjorden (tributary fjord of Isfjorden, West Spitsbergen) was compared with the results of a study conducted by Zajączkowski et al. (2010) in Hornsund (West Spitsbergen). According to Nilsen et al. (2016), Atlantic water inflow to the Isfjorden Trough occurs more readily than to anywhere else along the shelf of Spitsbergen; thus, we compared the foraminiferal assemblages of the outwash Adventfjorden fjord, located in the Isfjorden system, with glacial Hornsund, located in southwest Spitsbergen. Despite the juxtaposition of Adventfjorden and Hornsund the data revealed varying impacts of shelf-transformed water (STW) on the benthic foraminiferal assemblages. Outer and central Adventfjorden was dominated by Adercotryma glomerata, Recurvoides turbinata and Spiroplectammina sp., reflecting the presence of STW, while abundant Melonis barleeanus in the central area of the fjord indicated a large flux of unaltered organic matter. Only the head of the fjord was dominated by the glaciomarine taxa Cassidulina reniforme and Elphidium clavatum. Foraminiferal fauna characteristic of STW-influenced environments (i.e., Nonionellina labradorica and R. turbinata) were also observed in outer Hornsund. However, the glacier-proximal taxa E. clavatum and C. reniforme were dominant throughout the fjord, demonstrating the impacts of meltwater and high sedimentation. Therefore, it is likely that in Hornsund, glacial impact is a major environmental factor, which is stronger than the influence of STW. Article in Journal/Newspaper Adventfjorden Arctic Foraminifera* glacier Hornsund Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Spitsbergen Directory of Open Access Journals: DOAJ Articles Adventfjorden ENVELOPE(15.515,15.515,78.258,78.258) Arctic Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Svalbard Oceanologia 59 4 525 540 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Fjords Foraminifera Oceanography GC1-1581 |
spellingShingle |
Arctic Fjords Foraminifera Oceanography GC1-1581 Natalia Szymańska Joanna Pawłowska Małgorzata Kucharska Agnieszka Kujawa Magdalena Łącka Marek Zajączkowski Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
topic_facet |
Arctic Fjords Foraminifera Oceanography GC1-1581 |
description |
A new dataset of benthic foraminiferal assemblages from Adventfjorden (tributary fjord of Isfjorden, West Spitsbergen) was compared with the results of a study conducted by Zajączkowski et al. (2010) in Hornsund (West Spitsbergen). According to Nilsen et al. (2016), Atlantic water inflow to the Isfjorden Trough occurs more readily than to anywhere else along the shelf of Spitsbergen; thus, we compared the foraminiferal assemblages of the outwash Adventfjorden fjord, located in the Isfjorden system, with glacial Hornsund, located in southwest Spitsbergen. Despite the juxtaposition of Adventfjorden and Hornsund the data revealed varying impacts of shelf-transformed water (STW) on the benthic foraminiferal assemblages. Outer and central Adventfjorden was dominated by Adercotryma glomerata, Recurvoides turbinata and Spiroplectammina sp., reflecting the presence of STW, while abundant Melonis barleeanus in the central area of the fjord indicated a large flux of unaltered organic matter. Only the head of the fjord was dominated by the glaciomarine taxa Cassidulina reniforme and Elphidium clavatum. Foraminiferal fauna characteristic of STW-influenced environments (i.e., Nonionellina labradorica and R. turbinata) were also observed in outer Hornsund. However, the glacier-proximal taxa E. clavatum and C. reniforme were dominant throughout the fjord, demonstrating the impacts of meltwater and high sedimentation. Therefore, it is likely that in Hornsund, glacial impact is a major environmental factor, which is stronger than the influence of STW. |
format |
Article in Journal/Newspaper |
author |
Natalia Szymańska Joanna Pawłowska Małgorzata Kucharska Agnieszka Kujawa Magdalena Łącka Marek Zajączkowski |
author_facet |
Natalia Szymańska Joanna Pawłowska Małgorzata Kucharska Agnieszka Kujawa Magdalena Łącka Marek Zajączkowski |
author_sort |
Natalia Szymańska |
title |
Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
title_short |
Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
title_full |
Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
title_fullStr |
Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
title_full_unstemmed |
Impact of shelf-transformed waters (STW) on foraminiferal assemblages in the outwash and glacial fjords of Adventfjorden and Hornsund, Svalbard |
title_sort |
impact of shelf-transformed waters (stw) on foraminiferal assemblages in the outwash and glacial fjords of adventfjorden and hornsund, svalbard |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.oceano.2017.04.006 https://doaj.org/article/a16c072c47214370980d877edcad8de2 |
long_lat |
ENVELOPE(15.515,15.515,78.258,78.258) ENVELOPE(15.865,15.865,76.979,76.979) |
geographic |
Adventfjorden Arctic Hornsund Svalbard |
geographic_facet |
Adventfjorden Arctic Hornsund Svalbard |
genre |
Adventfjorden Arctic Foraminifera* glacier Hornsund Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Spitsbergen |
genre_facet |
Adventfjorden Arctic Foraminifera* glacier Hornsund Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Spitsbergen |
op_source |
Oceanologia, Vol 59, Iss 4, Pp 525-540 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S0078323417300556 https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2017.04.006 https://doaj.org/article/a16c072c47214370980d877edcad8de2 |
op_doi |
https://doi.org/10.1016/j.oceano.2017.04.006 |
container_title |
Oceanologia |
container_volume |
59 |
container_issue |
4 |
container_start_page |
525 |
op_container_end_page |
540 |
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1766395299336552448 |