Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow
An edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union. Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J, . Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediment...
Published in: | Journal of Geophysical Research: Biogeosciences |
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Online Access: | https://hdl.handle.net/10037/13860 https://doi.org/10.1002/2017JG003840 |
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ftunivtroemsoe:oai:munin.uit.no:10037/13860 2023-05-15T14:22:42+02:00 Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow Limoges, Audrey Ribeiro, Sofia Weckström, Kaarina Heikkilä, Maija Zamelczyk, Katarzyna Andersen, Thorbjørn J. Tallberg, Petra Massé, Guillaume Rysgaard, Søren Nørgaard-Pedersen, Niels Seidenkrantz, Marit-Solveig 2018-01-09 https://hdl.handle.net/10037/13860 https://doi.org/10.1002/2017JG003840 eng eng American Geophysical Union (AGU) Journal of Geophysical Research - Biogeosciences info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J., . Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. Journal of Geophysical Research: Biogeosciences, 123(3), 760-786. https://doi.org/10.1002/2017JG003840 FRIDAID 1555776 doi:10.1002/2017JG003840 2169-8953 2169-8961 https://hdl.handle.net/10037/13860 openAccess VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456 VDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456 Arctic sea ice Greenland fjords paleoclimate microfossils biomarkers Journal article Tidsskriftartikkel Peer reviewed 2018 ftunivtroemsoe https://doi.org/10.1002/2017JG003840 2021-06-25T17:56:09Z An edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union. Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J, . Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. Journal of Geophysical Research: Biogeosciences , 123(3), 760-786. https://doi.org/10.1002/2017JG003840. To view the published open abstract, go to https://doi.org/10.1002/2017JG003840 . The eastern north coast of Greenland is considered to be highly sensitive to the ongoing Arctic warming, but there is a general lack of data on modern conditions and in particular on the modern distribution of climate and environmental proxies to provide a baseline and context for studies on past variability. Here we present a detailed investigation of 11 biogenic proxies preserved in surface sediments from the remote High Arctic Wandel Sea shelf, the entrance to the Independence, Hagen, and Danmark fjords. The composition of organic matter (organic carbon, C:N ratios, δ 13 C, δ 15 N, biogenic silica, and IP 25 ) and microfossil assemblages revealed an overall low primary production dominated by benthic diatoms, especially at the shallow sites. While the benthic and planktic foraminiferal assemblages underline the intrusion of chilled Atlantic waters into the deeper parts of the study area, the distribution of organic‐walled dinoflagellate cysts is controlled by the local bathymetry and sea ice conditions. The distribution of the dinoflagellate cyst Polarella glacialis matches that of seasonal sea ice and the specific biomarker IP 25 , highlighting the potential of this species for paleo sea ice studies. The information inferred from our multiproxy study has important implications for the interpretation of the biogenic‐proxy signal preserved in sediments from circum‐Arctic fjords and shelf regions and can serve as a baseline for future studies. This is the first study of its kind in this area. Article in Journal/Newspaper Arctic Arctic Foraminifera* Greenland Sea ice Wandel Sea University of Tromsø: Munin Open Research Archive Arctic Greenland Hagen ENVELOPE(6.545,6.545,62.545,62.545) Heikkilä ENVELOPE(27.917,27.917,65.750,65.750) Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) Journal of Geophysical Research: Biogeosciences 123 3 760 786 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456 VDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456 Arctic sea ice Greenland fjords paleoclimate microfossils biomarkers |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456 VDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456 Arctic sea ice Greenland fjords paleoclimate microfossils biomarkers Limoges, Audrey Ribeiro, Sofia Weckström, Kaarina Heikkilä, Maija Zamelczyk, Katarzyna Andersen, Thorbjørn J. Tallberg, Petra Massé, Guillaume Rysgaard, Søren Nørgaard-Pedersen, Niels Seidenkrantz, Marit-Solveig Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Sedimentologi: 456 VDP::Mathematics and natural science: 400::Geosciences: 450::Sedimentology: 456 Arctic sea ice Greenland fjords paleoclimate microfossils biomarkers |
description |
An edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union. Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J, . Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. Journal of Geophysical Research: Biogeosciences , 123(3), 760-786. https://doi.org/10.1002/2017JG003840. To view the published open abstract, go to https://doi.org/10.1002/2017JG003840 . The eastern north coast of Greenland is considered to be highly sensitive to the ongoing Arctic warming, but there is a general lack of data on modern conditions and in particular on the modern distribution of climate and environmental proxies to provide a baseline and context for studies on past variability. Here we present a detailed investigation of 11 biogenic proxies preserved in surface sediments from the remote High Arctic Wandel Sea shelf, the entrance to the Independence, Hagen, and Danmark fjords. The composition of organic matter (organic carbon, C:N ratios, δ 13 C, δ 15 N, biogenic silica, and IP 25 ) and microfossil assemblages revealed an overall low primary production dominated by benthic diatoms, especially at the shallow sites. While the benthic and planktic foraminiferal assemblages underline the intrusion of chilled Atlantic waters into the deeper parts of the study area, the distribution of organic‐walled dinoflagellate cysts is controlled by the local bathymetry and sea ice conditions. The distribution of the dinoflagellate cyst Polarella glacialis matches that of seasonal sea ice and the specific biomarker IP 25 , highlighting the potential of this species for paleo sea ice studies. The information inferred from our multiproxy study has important implications for the interpretation of the biogenic‐proxy signal preserved in sediments from circum‐Arctic fjords and shelf regions and can serve as a baseline for future studies. This is the first study of its kind in this area. |
format |
Article in Journal/Newspaper |
author |
Limoges, Audrey Ribeiro, Sofia Weckström, Kaarina Heikkilä, Maija Zamelczyk, Katarzyna Andersen, Thorbjørn J. Tallberg, Petra Massé, Guillaume Rysgaard, Søren Nørgaard-Pedersen, Niels Seidenkrantz, Marit-Solveig |
author_facet |
Limoges, Audrey Ribeiro, Sofia Weckström, Kaarina Heikkilä, Maija Zamelczyk, Katarzyna Andersen, Thorbjørn J. Tallberg, Petra Massé, Guillaume Rysgaard, Søren Nørgaard-Pedersen, Niels Seidenkrantz, Marit-Solveig |
author_sort |
Limoges, Audrey |
title |
Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
title_short |
Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
title_full |
Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
title_fullStr |
Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
title_full_unstemmed |
Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow |
title_sort |
linking the modern distribution of biogenic proxies in high arctic greenland shelf sediments to sea ice, primary production and arctic-atlantic inflow |
publisher |
American Geophysical Union (AGU) |
publishDate |
2018 |
url |
https://hdl.handle.net/10037/13860 https://doi.org/10.1002/2017JG003840 |
long_lat |
ENVELOPE(6.545,6.545,62.545,62.545) ENVELOPE(27.917,27.917,65.750,65.750) ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
geographic |
Arctic Greenland Hagen Heikkilä Wandel |
geographic_facet |
Arctic Greenland Hagen Heikkilä Wandel |
genre |
Arctic Arctic Foraminifera* Greenland Sea ice Wandel Sea |
genre_facet |
Arctic Arctic Foraminifera* Greenland Sea ice Wandel Sea |
op_relation |
Journal of Geophysical Research - Biogeosciences info:eu-repo/grantAgreement/RCN/SFF/223259/Norway/Centre for Arctic Gas Hydrate, Environment and Climate/CAGE/ Limoges, A., Ribeiro, S., Weckström, K., Heikkilä, M., Zamelczyk, K., Andersen, T.J., . Seidenkrantz, M. (2018). Linking the modern distribution of biogenic proxies in High Arctic Greenland shelf sediments to sea ice, primary production and Arctic-Atlantic inflow. Journal of Geophysical Research: Biogeosciences, 123(3), 760-786. https://doi.org/10.1002/2017JG003840 FRIDAID 1555776 doi:10.1002/2017JG003840 2169-8953 2169-8961 https://hdl.handle.net/10037/13860 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1002/2017JG003840 |
container_title |
Journal of Geophysical Research: Biogeosciences |
container_volume |
123 |
container_issue |
3 |
container_start_page |
760 |
op_container_end_page |
786 |
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1766295226622672896 |