Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN
Since 2000 long-term measurements of vertical particle flux have been performed with moored sediment traps at the long-term observatory HAUSGARTEN in the eastern Fram Strait (79°N/4°E). The study area, which is seasonally covered with ice, is located in the confluence zone of the northward flowing w...
Main Authors: | , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2009
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.714845 https://doi.org/10.1594/PANGAEA.714845 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.714845 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
ARK-XVI/2 ARK-XVII/1 ARK-XVIII/1 ARK-XX/1 AWI_Paleo FEVI1 FEVI2 FEVI3 FEVI4 FEVI7 Hausgarten HERMES Hotspot Ecosystem Research on the Margins of European Seas Long-term Investigation at AWI-Hausgarten off Svalbard Mooring (long time) MOORY North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS57 PS57/273-1 HGIV PS59 PS59/101-1 PS62 PS62/179-2 PS66 PS66/129-1 |
spellingShingle |
ARK-XVI/2 ARK-XVII/1 ARK-XVIII/1 ARK-XX/1 AWI_Paleo FEVI1 FEVI2 FEVI3 FEVI4 FEVI7 Hausgarten HERMES Hotspot Ecosystem Research on the Margins of European Seas Long-term Investigation at AWI-Hausgarten off Svalbard Mooring (long time) MOORY North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS57 PS57/273-1 HGIV PS59 PS59/101-1 PS62 PS62/179-2 PS66 PS66/129-1 Bauerfeind, Eduard Nöthig, Eva-Maria Beszczynska, Agnieszka Fahl, Kirsten Kaleschke, Lars Kreker, Kathrin Klages, Michael Soltwedel, Thomas Lorenzen, Christiane Wegner, Jan Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
topic_facet |
ARK-XVI/2 ARK-XVII/1 ARK-XVIII/1 ARK-XX/1 AWI_Paleo FEVI1 FEVI2 FEVI3 FEVI4 FEVI7 Hausgarten HERMES Hotspot Ecosystem Research on the Margins of European Seas Long-term Investigation at AWI-Hausgarten off Svalbard Mooring (long time) MOORY North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS57 PS57/273-1 HGIV PS59 PS59/101-1 PS62 PS62/179-2 PS66 PS66/129-1 |
description |
Since 2000 long-term measurements of vertical particle flux have been performed with moored sediment traps at the long-term observatory HAUSGARTEN in the eastern Fram Strait (79°N/4°E). The study area, which is seasonally covered with ice, is located in the confluence zone of the northward flowing warm saline Atlantic water with cold, low salinity water masses of Arctic origin. Current projections suggest that this area is particularly vulnerable to global warming. Total matter fluxes and components thereof (carbonate, particulate organic carbon and nitrogen, biogenic silica, biomarkers) revealed a bimodal seasonal pattern showing elevated sedimentation rates during May/June and August/September. Annual total matter flux (dry weight, DW) at ~ 300 m depth varied between 13 and 32 g/m**2/a during 2000 and 2005. Of this total flux 6-13 % was due to CaCO3, 4-21 % to refractory particulate organic carbon (POC), and 3-8 % to biogenic particulate silica (bPSi). The annual flux of all biogenic components together was almost constant during the period studied (8.5-8.8 g/m**2/a), although this varied from 27 to 67 % of the total annual flux. The fraction was lowest in a year characterized by the longest duration of ice coverage (91 and 70 days for the calendar year and summer season, May-September, respectively). Biomarker analyses revealed that organic matter originating from marine sources was present in excess of terrigenious material in the sedimented matter throughout most of the study period. Fluxes of recognizable phyto- and protozooplankton cells amounted up to 60x106 m**2/d. Diatoms and coccolithophorids were the most abundant organisms. Diatoms, mainly pennate species, dominated during the first years of the investigation. A shift in the composition occurred during the last year when numbers of diatoms declined considerably, leading to a dominance of coccolithoporids. This was also reflected in a decrease in the sedimentation of bPSi. The sedimentation of biogenic matter, however, did not differ from the amount ... |
format |
Dataset |
author |
Bauerfeind, Eduard Nöthig, Eva-Maria Beszczynska, Agnieszka Fahl, Kirsten Kaleschke, Lars Kreker, Kathrin Klages, Michael Soltwedel, Thomas Lorenzen, Christiane Wegner, Jan |
author_facet |
Bauerfeind, Eduard Nöthig, Eva-Maria Beszczynska, Agnieszka Fahl, Kirsten Kaleschke, Lars Kreker, Kathrin Klages, Michael Soltwedel, Thomas Lorenzen, Christiane Wegner, Jan |
author_sort |
Bauerfeind, Eduard |
title |
Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
title_short |
Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
title_full |
Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
title_fullStr |
Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
title_full_unstemmed |
Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN |
title_sort |
biogenic particle and biomarker flux from a mooring time-series at awi hausgarten |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.714845 https://doi.org/10.1594/PANGAEA.714845 |
op_coverage |
MEDIAN LATITUDE: 79.017264 * MEDIAN LONGITUDE: 4.366430 * SOUTH-BOUND LATITUDE: 78.999160 * WEST-BOUND LONGITUDE: 4.329500 * NORTH-BOUND LATITUDE: 79.028330 * EAST-BOUND LONGITUDE: 4.457330 * DATE/TIME START: 2000-08-31T00:00:00 * DATE/TIME END: 2005-05-31T00:00:00 |
long_lat |
ENVELOPE(4.329500,4.457330,79.028330,78.999160) |
geographic |
Arctic Greenland Svalbard |
geographic_facet |
Arctic Greenland Svalbard |
genre |
Arctic Arctic Fram Strait Global warming Greenland Greenland Sea North Greenland Svalbard |
genre_facet |
Arctic Arctic Fram Strait Global warming Greenland Greenland Sea North Greenland Svalbard |
op_source |
Supplement to: Bauerfeind, Eduard; Nöthig, Eva-Maria; Beszczynska, Agnieszka; Fahl, Kirsten; Kaleschke, Lars; Kreker, Kathrin; Klages, Michael; Soltwedel, Thomas; Lorenzen, Christiane; Wegner, Jan (2009): Particle sedimentation patterns in the eastern Fram Strait during 2000-2005: Results from the Arctic long-term observatory HAUSGARTEN. Deep Sea Research Part I: Oceanographic Research Papers, 56(9), 1471-1487, https://doi.org/10.1016/j.dsr.2009.04.011 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.714845 https://doi.org/10.1594/PANGAEA.714845 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.714845 https://doi.org/10.1016/j.dsr.2009.04.011 |
_version_ |
1766300694691708928 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.714845 2023-05-15T14:27:06+02:00 Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN Bauerfeind, Eduard Nöthig, Eva-Maria Beszczynska, Agnieszka Fahl, Kirsten Kaleschke, Lars Kreker, Kathrin Klages, Michael Soltwedel, Thomas Lorenzen, Christiane Wegner, Jan MEDIAN LATITUDE: 79.017264 * MEDIAN LONGITUDE: 4.366430 * SOUTH-BOUND LATITUDE: 78.999160 * WEST-BOUND LONGITUDE: 4.329500 * NORTH-BOUND LATITUDE: 79.028330 * EAST-BOUND LONGITUDE: 4.457330 * DATE/TIME START: 2000-08-31T00:00:00 * DATE/TIME END: 2005-05-31T00:00:00 2009-05-05 application/zip, 10 datasets https://doi.pangaea.de/10.1594/PANGAEA.714845 https://doi.org/10.1594/PANGAEA.714845 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.714845 https://doi.org/10.1594/PANGAEA.714845 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Bauerfeind, Eduard; Nöthig, Eva-Maria; Beszczynska, Agnieszka; Fahl, Kirsten; Kaleschke, Lars; Kreker, Kathrin; Klages, Michael; Soltwedel, Thomas; Lorenzen, Christiane; Wegner, Jan (2009): Particle sedimentation patterns in the eastern Fram Strait during 2000-2005: Results from the Arctic long-term observatory HAUSGARTEN. Deep Sea Research Part I: Oceanographic Research Papers, 56(9), 1471-1487, https://doi.org/10.1016/j.dsr.2009.04.011 ARK-XVI/2 ARK-XVII/1 ARK-XVIII/1 ARK-XX/1 AWI_Paleo FEVI1 FEVI2 FEVI3 FEVI4 FEVI7 Hausgarten HERMES Hotspot Ecosystem Research on the Margins of European Seas Long-term Investigation at AWI-Hausgarten off Svalbard Mooring (long time) MOORY North Greenland Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Polarstern PS57 PS57/273-1 HGIV PS59 PS59/101-1 PS62 PS62/179-2 PS66 PS66/129-1 Dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.714845 https://doi.org/10.1016/j.dsr.2009.04.011 2023-01-20T07:31:24Z Since 2000 long-term measurements of vertical particle flux have been performed with moored sediment traps at the long-term observatory HAUSGARTEN in the eastern Fram Strait (79°N/4°E). The study area, which is seasonally covered with ice, is located in the confluence zone of the northward flowing warm saline Atlantic water with cold, low salinity water masses of Arctic origin. Current projections suggest that this area is particularly vulnerable to global warming. Total matter fluxes and components thereof (carbonate, particulate organic carbon and nitrogen, biogenic silica, biomarkers) revealed a bimodal seasonal pattern showing elevated sedimentation rates during May/June and August/September. Annual total matter flux (dry weight, DW) at ~ 300 m depth varied between 13 and 32 g/m**2/a during 2000 and 2005. Of this total flux 6-13 % was due to CaCO3, 4-21 % to refractory particulate organic carbon (POC), and 3-8 % to biogenic particulate silica (bPSi). The annual flux of all biogenic components together was almost constant during the period studied (8.5-8.8 g/m**2/a), although this varied from 27 to 67 % of the total annual flux. The fraction was lowest in a year characterized by the longest duration of ice coverage (91 and 70 days for the calendar year and summer season, May-September, respectively). Biomarker analyses revealed that organic matter originating from marine sources was present in excess of terrigenious material in the sedimented matter throughout most of the study period. Fluxes of recognizable phyto- and protozooplankton cells amounted up to 60x106 m**2/d. Diatoms and coccolithophorids were the most abundant organisms. Diatoms, mainly pennate species, dominated during the first years of the investigation. A shift in the composition occurred during the last year when numbers of diatoms declined considerably, leading to a dominance of coccolithoporids. This was also reflected in a decrease in the sedimentation of bPSi. The sedimentation of biogenic matter, however, did not differ from the amount ... Dataset Arctic Arctic Fram Strait Global warming Greenland Greenland Sea North Greenland Svalbard PANGAEA - Data Publisher for Earth & Environmental Science Arctic Greenland Svalbard ENVELOPE(4.329500,4.457330,79.028330,78.999160) |