Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean
Two mooring arrays carrying sediment traps were deployed from September 2011 to August 2012 at ∼83°N on each side of the Gakkel Ridge in the Nansen and Amundsen Basins to measure downward particle flux below the euphotic zone (approx. 250 m) and approximately 150 m above seafloor at approximately 35...
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ftpubmed:oai:pubmedcentral.nih.gov:7481669 2023-05-15T13:22:41+02:00 Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean Nöthig, Eva-Maria Lalande, Catherine Fahl, Kirsten Metfies, Katja Salter, Ian Bauerfeind, Eduard 2020-10-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7481669/ http://www.ncbi.nlm.nih.gov/pubmed/32862819 https://doi.org/10.1098/rsta.2019.0368 en eng The Royal Society Publishing http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7481669/ http://www.ncbi.nlm.nih.gov/pubmed/32862819 http://dx.doi.org/10.1098/rsta.2019.0368 © 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. CC-BY Philos Trans A Math Phys Eng Sci Articles Text 2020 ftpubmed https://doi.org/10.1098/rsta.2019.0368 2020-09-20T00:32:19Z Two mooring arrays carrying sediment traps were deployed from September 2011 to August 2012 at ∼83°N on each side of the Gakkel Ridge in the Nansen and Amundsen Basins to measure downward particle flux below the euphotic zone (approx. 250 m) and approximately 150 m above seafloor at approximately 3500 and 4000 m depth, respectively. In a region that still experiences nearly complete ice cover throughout the year, export fluxes of total particulate matter (TPM), particulate organic carbon (POC), particulate nitrogen (PN), biogenic matter, lithogenic matter, biogenic particulate silica (bPSi), calcium carbonate (CaCO(3)), protists and biomarkers only slightly decreased with depth. Seasonal variations of particulate matter fluxes were similar on both sides of the Gakkel Ridge. Somewhat higher export rates in the Amundsen Basin and differences in the composition of the sinking TPM and bPSi on each side of the Gakkel Ridge probably reflected the influence of the Lena River/Transpolar Drift in the Amundsen Basin and the influence of Atlantic water in the Nansen Basin. Low variations in particle export with depth revealed a limited influence of lateral advection in the deep barren Eurasian Basin. This article is part of the theme issue ‘The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning’. Text amundsen basin Arctic Arctic Ocean lena river Nansen Basin PubMed Central (PMC) Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) Arctic Arctic Ocean Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378 2181 20190368 |
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Articles Nöthig, Eva-Maria Lalande, Catherine Fahl, Kirsten Metfies, Katja Salter, Ian Bauerfeind, Eduard Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
topic_facet |
Articles |
description |
Two mooring arrays carrying sediment traps were deployed from September 2011 to August 2012 at ∼83°N on each side of the Gakkel Ridge in the Nansen and Amundsen Basins to measure downward particle flux below the euphotic zone (approx. 250 m) and approximately 150 m above seafloor at approximately 3500 and 4000 m depth, respectively. In a region that still experiences nearly complete ice cover throughout the year, export fluxes of total particulate matter (TPM), particulate organic carbon (POC), particulate nitrogen (PN), biogenic matter, lithogenic matter, biogenic particulate silica (bPSi), calcium carbonate (CaCO(3)), protists and biomarkers only slightly decreased with depth. Seasonal variations of particulate matter fluxes were similar on both sides of the Gakkel Ridge. Somewhat higher export rates in the Amundsen Basin and differences in the composition of the sinking TPM and bPSi on each side of the Gakkel Ridge probably reflected the influence of the Lena River/Transpolar Drift in the Amundsen Basin and the influence of Atlantic water in the Nansen Basin. Low variations in particle export with depth revealed a limited influence of lateral advection in the deep barren Eurasian Basin. This article is part of the theme issue ‘The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning’. |
format |
Text |
author |
Nöthig, Eva-Maria Lalande, Catherine Fahl, Kirsten Metfies, Katja Salter, Ian Bauerfeind, Eduard |
author_facet |
Nöthig, Eva-Maria Lalande, Catherine Fahl, Kirsten Metfies, Katja Salter, Ian Bauerfeind, Eduard |
author_sort |
Nöthig, Eva-Maria |
title |
Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
title_short |
Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
title_full |
Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
title_fullStr |
Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
title_full_unstemmed |
Annual cycle of downward particle fluxes on each side of the Gakkel Ridge in the central Arctic Ocean |
title_sort |
annual cycle of downward particle fluxes on each side of the gakkel ridge in the central arctic ocean |
publisher |
The Royal Society Publishing |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7481669/ http://www.ncbi.nlm.nih.gov/pubmed/32862819 https://doi.org/10.1098/rsta.2019.0368 |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(90.000,90.000,87.000,87.000) |
geographic |
Amundsen Basin Arctic Arctic Ocean Gakkel Ridge |
geographic_facet |
Amundsen Basin Arctic Arctic Ocean Gakkel Ridge |
genre |
amundsen basin Arctic Arctic Ocean lena river Nansen Basin |
genre_facet |
amundsen basin Arctic Arctic Ocean lena river Nansen Basin |
op_source |
Philos Trans A Math Phys Eng Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7481669/ http://www.ncbi.nlm.nih.gov/pubmed/32862819 http://dx.doi.org/10.1098/rsta.2019.0368 |
op_rights |
© 2020 The Authors. http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/http://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsta.2019.0368 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
378 |
container_issue |
2181 |
container_start_page |
20190368 |
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