Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters
Arctic climate warming leads to drastic changes in sea ice dynamics, hence impacting primary productivity but also the benthic communities. Therefore, to assess the response of living benthic foraminifera to contrasting Arctic environments, surface sediments from nine stations were collected during...
Published in: | Journal of Marine Science and Engineering |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-04285823 https://doi.org/10.3390/jmse11112049 |
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ftinsu:oai:HAL:hal-04285823v1 2023-12-17T10:25:40+01:00 Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters Racine, Calypso Bonnin, Jérôme Dessandier, Pierre-Antoine Giraudeau, Jacques Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) 2023-11 https://hal.science/hal-04285823 https://doi.org/10.3390/jmse11112049 en eng HAL CCSD MDPI info:eu-repo/semantics/altIdentifier/doi/10.3390/jmse11112049 hal-04285823 https://hal.science/hal-04285823 doi:10.3390/jmse11112049 ISSN: 2077-1312 Journal of Marine Science and Engineering https://hal.science/hal-04285823 Journal of Marine Science and Engineering, 2023, 11 (11), pp.2049. ⟨10.3390/jmse11112049⟩ [SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.3390/jmse11112049 2023-11-22T17:25:43Z Arctic climate warming leads to drastic changes in sea ice dynamics, hence impacting primary productivity but also the benthic communities. Therefore, to assess the response of living benthic foraminifera to contrasting Arctic environments, surface sediments from nine stations were collected during the summer of 2014 and fall of 2015 in the Baffin Bay and Nares Strait. Living standing stock are systematically low in the eastern and western Baffin Bay and much higher in the North Water Polynya and the Kane Basin located at the entrance and in the center of Nares Strait, respectively. High living benthic foraminiferal densities in the NOW reflect higher TOC while the highest density in the Kane Basin coincides with lower TOC but higher C/N and higher δ13Corg. The contribution of agglutinated species is on average very high for the whole study area and dominated by the species Adercotryma glomeratum, Lagenammina arenulata, and Reophax scorpiurus. Calcareous species, dominated by Nonionellina labradorica and Melonis barleeanus, are more abundant in the North Water Polynya and the Kane Basin. The very high living standing stock observed in the Kane Basin might be related to the northern position of the ice arch that summer during 2014 and therefore a particularly scarce sea ice cover might have allowed massive phytoplankton production during that season. In this study, the distribution of living benthic foraminifera is discussed according to several environmental parameters such as water masses, phytoplankton productivity, and organic matter fluxes. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Foraminifera* Kane Basin Nares strait Phytoplankton Sea ice Institut national des sciences de l'Univers: HAL-INSU Arctic Baffin Bay Kane ENVELOPE(-63.038,-63.038,-73.952,-73.952) Nares ENVELOPE(158.167,158.167,-81.450,-81.450) Journal of Marine Science and Engineering 11 11 2049 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] Racine, Calypso Bonnin, Jérôme Dessandier, Pierre-Antoine Giraudeau, Jacques Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
topic_facet |
[SDE]Environmental Sciences [SDU]Sciences of the Universe [physics] |
description |
Arctic climate warming leads to drastic changes in sea ice dynamics, hence impacting primary productivity but also the benthic communities. Therefore, to assess the response of living benthic foraminifera to contrasting Arctic environments, surface sediments from nine stations were collected during the summer of 2014 and fall of 2015 in the Baffin Bay and Nares Strait. Living standing stock are systematically low in the eastern and western Baffin Bay and much higher in the North Water Polynya and the Kane Basin located at the entrance and in the center of Nares Strait, respectively. High living benthic foraminiferal densities in the NOW reflect higher TOC while the highest density in the Kane Basin coincides with lower TOC but higher C/N and higher δ13Corg. The contribution of agglutinated species is on average very high for the whole study area and dominated by the species Adercotryma glomeratum, Lagenammina arenulata, and Reophax scorpiurus. Calcareous species, dominated by Nonionellina labradorica and Melonis barleeanus, are more abundant in the North Water Polynya and the Kane Basin. The very high living standing stock observed in the Kane Basin might be related to the northern position of the ice arch that summer during 2014 and therefore a particularly scarce sea ice cover might have allowed massive phytoplankton production during that season. In this study, the distribution of living benthic foraminifera is discussed according to several environmental parameters such as water masses, phytoplankton productivity, and organic matter fluxes. |
author2 |
Environnements et Paléoenvironnements OCéaniques (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1 (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École Pratique des Hautes Études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Racine, Calypso Bonnin, Jérôme Dessandier, Pierre-Antoine Giraudeau, Jacques |
author_facet |
Racine, Calypso Bonnin, Jérôme Dessandier, Pierre-Antoine Giraudeau, Jacques |
author_sort |
Racine, Calypso |
title |
Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
title_short |
Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
title_full |
Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
title_fullStr |
Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
title_full_unstemmed |
Distribution of Living Benthic Foraminifera in the Baffin Bay and Nares Strait in the Summer and Fall Periods: Relation with Environmental Parameters |
title_sort |
distribution of living benthic foraminifera in the baffin bay and nares strait in the summer and fall periods: relation with environmental parameters |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04285823 https://doi.org/10.3390/jmse11112049 |
long_lat |
ENVELOPE(-63.038,-63.038,-73.952,-73.952) ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Baffin Bay Kane Nares |
geographic_facet |
Arctic Baffin Bay Kane Nares |
genre |
Arctic Baffin Bay Baffin Bay Baffin Foraminifera* Kane Basin Nares strait Phytoplankton Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Foraminifera* Kane Basin Nares strait Phytoplankton Sea ice |
op_source |
ISSN: 2077-1312 Journal of Marine Science and Engineering https://hal.science/hal-04285823 Journal of Marine Science and Engineering, 2023, 11 (11), pp.2049. ⟨10.3390/jmse11112049⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3390/jmse11112049 hal-04285823 https://hal.science/hal-04285823 doi:10.3390/jmse11112049 |
op_doi |
https://doi.org/10.3390/jmse11112049 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
11 |
container_issue |
11 |
container_start_page |
2049 |
_version_ |
1785577321485303808 |