Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights
We examine the living and dead benthic foraminiferal assemblages from the topmost 10 cm (using 150 μm sieve fraction) of three sedimentological short records collected in the Kveithola Trough (northwest Barents Sea). Our aim is to reconstruct the environmental variations of the last decades, connect...
Published in: | Marine Micropaleontology |
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2021
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Online Access: | http://hdl.handle.net/11566/291005 https://doi.org/10.1016/j.marmicro.2021.102014 https://www.sciencedirect.com/science/article/pii/S0377839821000554 |
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ftupmarcheiris:oai:iris.univpm.it:11566/291005 2024-04-14T08:07:10+00:00 Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina 2021 ELETTRONICO http://hdl.handle.net/11566/291005 https://doi.org/10.1016/j.marmicro.2021.102014 https://www.sciencedirect.com/science/article/pii/S0377839821000554 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000672681800003 volume:166 firstpage:102014 journal:MARINE MICROPALEONTOLOGY http://hdl.handle.net/11566/291005 doi:10.1016/j.marmicro.2021.102014 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111033144 https://www.sciencedirect.com/science/article/pii/S0377839821000554 Living vs. dead benthic foraminifera Taphonomic processes Oceanographic processes Kveithola Trough (Barents Sea) Arctic info:eu-repo/semantics/article 2021 ftupmarcheiris https://doi.org/10.1016/j.marmicro.2021.102014 2024-03-21T18:28:48Z We examine the living and dead benthic foraminiferal assemblages from the topmost 10 cm (using 150 μm sieve fraction) of three sedimentological short records collected in the Kveithola Trough (northwest Barents Sea). Our aim is to reconstruct the environmental variations of the last decades, connected to the interaction among the North Atlantic and the Arctic water masses. Our samples are collected at water depths between 150 and 380 m during the Eurofleets2-BURSTER oceanographic cruise, on board of the R/V Polarstern (June 2016). In the Cell Tracker Green (CTG) labelled living foraminiferal fauna, the main species are Pullenia bulloides, Globobulimina auriculata, and Nonionellina labradorica, while in the dead assemblages the main species are Cassidulina neoteretis, Cibicidoides lobatulus, and Cassidulina reniforme (outer, inner, and shelf stations, respectively). The dead foraminiferal assemblages show no significant traceable environmental changes in the Kveithola Trough area occurred during the last ca. 100 years. Conversely, the living foraminiferal fauna shows that this area is subject to variations related to circulation changes and organic matter burial in sediments, to which the biota adapts quickly. Moreover, the species that are only observed in the dead foraminiferal assemblages and not in the living CTG-labelled foraminiferal assemblages (e.g. C. reniforme) are typical of colder water and highlight the ongoing warming of the Arctic area. We find that the preservation of foraminiferal tests may bias the paleontological results. The agglutinated tests are often disintegrated, and the delicate calcareous ones are broken. The environmental conditions (style of sedimentation, bottom currents, interaction with other communities) can weaken the foraminiferal tests and make them prone to breakage or dissolution. Article in Journal/Newspaper Arctic Barents Sea Foraminifera* North Atlantic Università Politecnica delle Marche: IRIS Arctic Barents Sea Marine Micropaleontology 166 102014 |
institution |
Open Polar |
collection |
Università Politecnica delle Marche: IRIS |
op_collection_id |
ftupmarcheiris |
language |
English |
topic |
Living vs. dead benthic foraminifera Taphonomic processes Oceanographic processes Kveithola Trough (Barents Sea) Arctic |
spellingShingle |
Living vs. dead benthic foraminifera Taphonomic processes Oceanographic processes Kveithola Trough (Barents Sea) Arctic Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
topic_facet |
Living vs. dead benthic foraminifera Taphonomic processes Oceanographic processes Kveithola Trough (Barents Sea) Arctic |
description |
We examine the living and dead benthic foraminiferal assemblages from the topmost 10 cm (using 150 μm sieve fraction) of three sedimentological short records collected in the Kveithola Trough (northwest Barents Sea). Our aim is to reconstruct the environmental variations of the last decades, connected to the interaction among the North Atlantic and the Arctic water masses. Our samples are collected at water depths between 150 and 380 m during the Eurofleets2-BURSTER oceanographic cruise, on board of the R/V Polarstern (June 2016). In the Cell Tracker Green (CTG) labelled living foraminiferal fauna, the main species are Pullenia bulloides, Globobulimina auriculata, and Nonionellina labradorica, while in the dead assemblages the main species are Cassidulina neoteretis, Cibicidoides lobatulus, and Cassidulina reniforme (outer, inner, and shelf stations, respectively). The dead foraminiferal assemblages show no significant traceable environmental changes in the Kveithola Trough area occurred during the last ca. 100 years. Conversely, the living foraminiferal fauna shows that this area is subject to variations related to circulation changes and organic matter burial in sediments, to which the biota adapts quickly. Moreover, the species that are only observed in the dead foraminiferal assemblages and not in the living CTG-labelled foraminiferal assemblages (e.g. C. reniforme) are typical of colder water and highlight the ongoing warming of the Arctic area. We find that the preservation of foraminiferal tests may bias the paleontological results. The agglutinated tests are often disintegrated, and the delicate calcareous ones are broken. The environmental conditions (style of sedimentation, bottom currents, interaction with other communities) can weaken the foraminiferal tests and make them prone to breakage or dissolution. |
author2 |
Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina |
format |
Article in Journal/Newspaper |
author |
Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina |
author_facet |
Gamboa-Sojo, Viviana Maria Husum, Katrine Caridi, Francesca Lucchi, Renata G. Bensi, Manuel Kovačević, Vedrana Sabbatini, Anna Langone, Leonardo Dominiczak, Aleksander Tadeusz Povea, Patricia Morigi, Caterina |
author_sort |
Gamboa-Sojo, Viviana Maria |
title |
Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
title_short |
Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
title_full |
Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
title_fullStr |
Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
title_full_unstemmed |
Living and dead foraminiferal assemblages of the last decades from Kveithola Trough: Taphonomic processes and ecological highlights |
title_sort |
living and dead foraminiferal assemblages of the last decades from kveithola trough: taphonomic processes and ecological highlights |
publishDate |
2021 |
url |
http://hdl.handle.net/11566/291005 https://doi.org/10.1016/j.marmicro.2021.102014 https://www.sciencedirect.com/science/article/pii/S0377839821000554 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Foraminifera* North Atlantic |
genre_facet |
Arctic Barents Sea Foraminifera* North Atlantic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000672681800003 volume:166 firstpage:102014 journal:MARINE MICROPALEONTOLOGY http://hdl.handle.net/11566/291005 doi:10.1016/j.marmicro.2021.102014 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111033144 https://www.sciencedirect.com/science/article/pii/S0377839821000554 |
op_doi |
https://doi.org/10.1016/j.marmicro.2021.102014 |
container_title |
Marine Micropaleontology |
container_volume |
166 |
container_start_page |
102014 |
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1796304436068352000 |