Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean)
Surface sediments (n=39) from the western Fram Strait and across the Yermak Plateau (Arctic Ocean) were investigated by molecular and isotopic organic geochemical methods to determine the composition, distribution and origin of extractable aliphatic lipids (n-alkanes, n-alkanols, fatty acids). Bulk...
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Format: | Other/Unknown Material |
Language: | English |
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PANGAEA
2004
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.728139 https://doi.org/10.1594/PANGAEA.728139 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728139 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean ARK-XIII/2 ARK-XV/2 ARK-XVI/1 ARK-XVI/2 AWI_Paleo East Greenland continental slope Fram Strait Giant box corer GKG HG_I HG_II HG_III HG_IV HG_V HG_VI HG_VII HG_VIII KAL Kasten corer MUC MULT MultiCorer Multiple investigations North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2830-8 PS2830-9 PS2831-10 PS2832-13 PS2833-7 PS2834-7 PS2835-5 PS2836-6 PS2837-6 PS2838-8 PS2839-5 PS2840-5 PS2842-2 PS2845-4 PS2846-4 PS2847-3 PS2848-3 PS2849-6 PS2851-2 PS2853-9 PS2854-2 PS2855-9 PS2856-7 |
spellingShingle |
Arctic Ocean ARK-XIII/2 ARK-XV/2 ARK-XVI/1 ARK-XVI/2 AWI_Paleo East Greenland continental slope Fram Strait Giant box corer GKG HG_I HG_II HG_III HG_IV HG_V HG_VI HG_VII HG_VIII KAL Kasten corer MUC MULT MultiCorer Multiple investigations North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2830-8 PS2830-9 PS2831-10 PS2832-13 PS2833-7 PS2834-7 PS2835-5 PS2836-6 PS2837-6 PS2838-8 PS2839-5 PS2840-5 PS2842-2 PS2845-4 PS2846-4 PS2847-3 PS2848-3 PS2849-6 PS2851-2 PS2853-9 PS2854-2 PS2855-9 PS2856-7 Birgel, Daniel Stein, Ruediger Hefter, Jens Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
topic_facet |
Arctic Ocean ARK-XIII/2 ARK-XV/2 ARK-XVI/1 ARK-XVI/2 AWI_Paleo East Greenland continental slope Fram Strait Giant box corer GKG HG_I HG_II HG_III HG_IV HG_V HG_VI HG_VII HG_VIII KAL Kasten corer MUC MULT MultiCorer Multiple investigations North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2830-8 PS2830-9 PS2831-10 PS2832-13 PS2833-7 PS2834-7 PS2835-5 PS2836-6 PS2837-6 PS2838-8 PS2839-5 PS2840-5 PS2842-2 PS2845-4 PS2846-4 PS2847-3 PS2848-3 PS2849-6 PS2851-2 PS2853-9 PS2854-2 PS2855-9 PS2856-7 |
description |
Surface sediments (n=39) from the western Fram Strait and across the Yermak Plateau (Arctic Ocean) were investigated by molecular and isotopic organic geochemical methods to determine the composition, distribution and origin of extractable aliphatic lipids (n-alkanes, n-alkanols, fatty acids). Bulk geochemical parameters (TOC-content, d13Corg) were also determined, including additional samples nearby. Enhanced organic carbon contents of up to 1.6% along the western slope of the Yermak Plateau and north off Spitsbergen, corroborated by an average d13Corg value of -22.3 per mil, indicated most of the organic material to be of a marine origin, despite ice-cover. The extractable aliphatic lipids contributed up to 1% of the sedimentary organic carbon and were dominated by fatty acids (0.7-9.1 mg/g TOC), whereas n-alkanes and n-alkanols contributed only minor amounts (0.1-0.4 mg/g TOC). The detailed molecular and carbon isotopic characterisation of the studied aliphatic compounds enabled assignments of most components to three lipid pools, representing: (a) primary production (marine phytoplankton, sea-ice algae), (b) secondary inputs (by feeding of zooplankton, benthic organisms and bacteria on the former) and (c) terrestrial-derived contributions. The first two compound groups dominated, but varied significantly in relation to the environment and were highest at the MIZ (Marginal Ice Zone), and along the permanently ice-covered western flank of the Yermak Plateau. In contrast, compounds attributable to a terrestrial source were of only minor importance in terms of absolute concentrations and less variable, but showed increasing relative proportions from an average of 8-14% at and southwards of the MIZ up to 27-33% on the Yermak Plateau and towards the central Arctic Ocean as a consequence of the weakening signal of primary and secondary production. This study provides further insights into the Arctic Ocean carbon dynamics, but also an example of the impact of ocean-currents on the deposition and composition of ... |
format |
Other/Unknown Material |
author |
Birgel, Daniel Stein, Ruediger Hefter, Jens |
author_facet |
Birgel, Daniel Stein, Ruediger Hefter, Jens |
author_sort |
Birgel, Daniel |
title |
Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
title_short |
Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
title_full |
Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
title_fullStr |
Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
title_full_unstemmed |
Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) |
title_sort |
aliphatic lipids in recent sediments of the fram strait/yermak plateau (arctic ocean) |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728139 https://doi.org/10.1594/PANGAEA.728139 |
op_coverage |
MEDIAN LATITUDE: 80.284000 * MEDIAN LONGITUDE: 6.509794 * SOUTH-BOUND LATITUDE: 74.651000 * WEST-BOUND LONGITUDE: -13.585000 * NORTH-BOUND LATITUDE: 82.653333 * EAST-BOUND LONGITUDE: 17.542667 * DATE/TIME START: 1997-07-04T02:49:00 * DATE/TIME END: 2000-08-20T04:00:00 |
long_lat |
ENVELOPE(-13.585000,17.542667,82.653333,74.651000) |
genre |
Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung East Greenland Fram Strait Greenland Greenland Sea ice algae North Greenland Phytoplankton Reports on Polar and Marine Research Sea ice Yermak plateau Zooplankton Spitsbergen |
genre_facet |
Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung East Greenland Fram Strait Greenland Greenland Sea ice algae North Greenland Phytoplankton Reports on Polar and Marine Research Sea ice Yermak plateau Zooplankton Spitsbergen |
op_source |
Supplement to: Birgel, Daniel; Stein, Ruediger; Hefter, Jens (2004): Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean): composition, sources and transport processes. Marine Chemistry, 88(3-4), 127-160, https://doi.org/10.1016/j.marchem.2004.03.006 |
op_relation |
Birgel, Daniel (2003): Distribution, composition, flux and variability of organic carbon in Fram Strait/Yermak Plateau (Arctic Ocean) and (palaeo) environmental significance (Verteilung, Zusammensetzung, Fluss und Variabilität von organischem Kohlenstoff in der Framstrasse/Yermak Plateau (Arktischer Ozean) und die Bedeutung für (Paläo)- Umweltrekonstruktionen). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 463, 107 pp, https://doi.org/10.2312/BzPM_0463_2003 https://doi.pangaea.de/10.1594/PANGAEA.728139 https://doi.org/10.1594/PANGAEA.728139 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.72813910.1016/j.marchem.2004.03.00610.2312/BzPM_0463_2003 |
_version_ |
1810292580885200896 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728139 2024-09-15T17:50:47+00:00 Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean) Birgel, Daniel Stein, Ruediger Hefter, Jens MEDIAN LATITUDE: 80.284000 * MEDIAN LONGITUDE: 6.509794 * SOUTH-BOUND LATITUDE: 74.651000 * WEST-BOUND LONGITUDE: -13.585000 * NORTH-BOUND LATITUDE: 82.653333 * EAST-BOUND LONGITUDE: 17.542667 * DATE/TIME START: 1997-07-04T02:49:00 * DATE/TIME END: 2000-08-20T04:00:00 2004 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.728139 https://doi.org/10.1594/PANGAEA.728139 en eng PANGAEA Birgel, Daniel (2003): Distribution, composition, flux and variability of organic carbon in Fram Strait/Yermak Plateau (Arctic Ocean) and (palaeo) environmental significance (Verteilung, Zusammensetzung, Fluss und Variabilität von organischem Kohlenstoff in der Framstrasse/Yermak Plateau (Arktischer Ozean) und die Bedeutung für (Paläo)- Umweltrekonstruktionen). Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 463, 107 pp, https://doi.org/10.2312/BzPM_0463_2003 https://doi.pangaea.de/10.1594/PANGAEA.728139 https://doi.org/10.1594/PANGAEA.728139 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Birgel, Daniel; Stein, Ruediger; Hefter, Jens (2004): Aliphatic lipids in recent sediments of the Fram Strait/Yermak Plateau (Arctic Ocean): composition, sources and transport processes. Marine Chemistry, 88(3-4), 127-160, https://doi.org/10.1016/j.marchem.2004.03.006 Arctic Ocean ARK-XIII/2 ARK-XV/2 ARK-XVI/1 ARK-XVI/2 AWI_Paleo East Greenland continental slope Fram Strait Giant box corer GKG HG_I HG_II HG_III HG_IV HG_V HG_VI HG_VII HG_VIII KAL Kasten corer MUC MULT MultiCorer Multiple investigations North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS2830-8 PS2830-9 PS2831-10 PS2832-13 PS2833-7 PS2834-7 PS2835-5 PS2836-6 PS2837-6 PS2838-8 PS2839-5 PS2840-5 PS2842-2 PS2845-4 PS2846-4 PS2847-3 PS2848-3 PS2849-6 PS2851-2 PS2853-9 PS2854-2 PS2855-9 PS2856-7 dataset publication series 2004 ftpangaea https://doi.org/10.1594/PANGAEA.72813910.1016/j.marchem.2004.03.00610.2312/BzPM_0463_2003 2024-07-24T02:31:20Z Surface sediments (n=39) from the western Fram Strait and across the Yermak Plateau (Arctic Ocean) were investigated by molecular and isotopic organic geochemical methods to determine the composition, distribution and origin of extractable aliphatic lipids (n-alkanes, n-alkanols, fatty acids). Bulk geochemical parameters (TOC-content, d13Corg) were also determined, including additional samples nearby. Enhanced organic carbon contents of up to 1.6% along the western slope of the Yermak Plateau and north off Spitsbergen, corroborated by an average d13Corg value of -22.3 per mil, indicated most of the organic material to be of a marine origin, despite ice-cover. The extractable aliphatic lipids contributed up to 1% of the sedimentary organic carbon and were dominated by fatty acids (0.7-9.1 mg/g TOC), whereas n-alkanes and n-alkanols contributed only minor amounts (0.1-0.4 mg/g TOC). The detailed molecular and carbon isotopic characterisation of the studied aliphatic compounds enabled assignments of most components to three lipid pools, representing: (a) primary production (marine phytoplankton, sea-ice algae), (b) secondary inputs (by feeding of zooplankton, benthic organisms and bacteria on the former) and (c) terrestrial-derived contributions. The first two compound groups dominated, but varied significantly in relation to the environment and were highest at the MIZ (Marginal Ice Zone), and along the permanently ice-covered western flank of the Yermak Plateau. In contrast, compounds attributable to a terrestrial source were of only minor importance in terms of absolute concentrations and less variable, but showed increasing relative proportions from an average of 8-14% at and southwards of the MIZ up to 27-33% on the Yermak Plateau and towards the central Arctic Ocean as a consequence of the weakening signal of primary and secondary production. This study provides further insights into the Arctic Ocean carbon dynamics, but also an example of the impact of ocean-currents on the deposition and composition of ... Other/Unknown Material Arctic Arctic Ocean Berichte zur Polar- und Meeresforschung East Greenland Fram Strait Greenland Greenland Sea ice algae North Greenland Phytoplankton Reports on Polar and Marine Research Sea ice Yermak plateau Zooplankton Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-13.585000,17.542667,82.653333,74.651000) |