Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?

Source: http://dx.doi.org/10.1016/j.jmarsys.2015.10.003 A manuscript version of this article is part of Ingrid Wiedmann's doctoral thesis, which is available in Munin at http://hdl.handle.net/10037/8293 The arctic Adventfjorden (78°N, 15°E, Svalbard) used to be seasonally ice-covered but has mo...

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Published in:Journal of Marine Systems
Main Authors: Wiedmann, Ingrid, Reigstad, Marit, Marquardt, Miriam, Vader, Anna, Gabrielsen, Tove M.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier. Journal of Marine Systems 2015
Subjects:
Online Access:https://hdl.handle.net/10037/10645
https://doi.org/10.1016/j.jmarsys.2015.10.003
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record_format openpolar
spelling ftunivtroemsoe:oai:munin.uit.no:10037/10645 2023-05-15T13:05:53+02:00 Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords? Wiedmann, Ingrid Reigstad, Marit Marquardt, Miriam Vader, Anna Gabrielsen, Tove M. 2015-10-23 https://hdl.handle.net/10037/10645 https://doi.org/10.1016/j.jmarsys.2015.10.003 eng eng Elsevier. Journal of Marine Systems Journal of Marine Systems Wiedmann I, Reigstad M, Marquardt M, Vader A, Gabrielsen TM. Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?. Journal of Marine Systems. 2016;154(Part B):192-205 FRIDAID 1298510 doi:10.1016/j.jmarsys.2015.10.003 0924-7963 1879-1573 https://hdl.handle.net/10037/10645 openAccess VDP::Matematikk og Naturvitenskap: 400 VDP::Landbruks- og Fiskerifag: 900 Gel trap Particulate organic carbon (POC) Particle size spectra Aggregate Detritus Glacial runoff Journal article Tidsskriftartikkel Peer reviewed 2015 ftunivtroemsoe https://doi.org/10.1016/j.jmarsys.2015.10.003 2021-06-25T17:55:06Z Source: http://dx.doi.org/10.1016/j.jmarsys.2015.10.003 A manuscript version of this article is part of Ingrid Wiedmann's doctoral thesis, which is available in Munin at http://hdl.handle.net/10037/8293 The arctic Adventfjorden (78°N, 15°E, Svalbard) used to be seasonally ice-covered but has mostly been ice-free since 2007. We used this ice-free arctic fjord as a model area to investigate (1) how the vertical fl ux of biomass (chlorophyll a and particulate organic carbon, POC) follows the seasonality of suspended material, (2) how sink- ing particle characteristics change seasonally and affect the vertical fl ux, and (3) if the vertical fl ux in the ice-free arctic fjord with glacial runoff resembles the fl ux in subarctic ice-free fjords. During seven fi eld investigations (December 2011 – September 2012), suspended biomass was determined (5, 15, 25, and 60 m), and short-term sediment traps were deployed (20, 30, 40, and 60 m), partly modi fi ed with gel- fi lled jars to study the size and frequency distribution of sinking particles. During winter, resuspension from the sea fl oor resulted in large, detrital sinking particles. Intense sedimentation of fresh biomass occurred during the spring bloom. The highest POC fl ux was found during autumn (770 – 1530 mg POC m − 2 d − 1 ), associated with sediment-loaded glacial runoff and high pteropod abundances. The vertical biomass fl ux in the ice-free arctic Adventfjorden thus resem- bled that in subarctic fjords during winter and spring, but a higher POC sedimentation was observed during autumn. Article in Journal/Newspaper Adventfjorden Arctic Arctic Subarctic Svalbard University of Tromsø: Munin Open Research Archive Adventfjorden ENVELOPE(15.515,15.515,78.258,78.258) Arctic Svalbard Journal of Marine Systems 154 192 205
institution Open Polar
collection University of Tromsø: Munin Open Research Archive
op_collection_id ftunivtroemsoe
language English
topic VDP::Matematikk og Naturvitenskap: 400
VDP::Landbruks- og Fiskerifag: 900
Gel trap
Particulate organic carbon (POC)
Particle size spectra
Aggregate
Detritus
Glacial runoff
spellingShingle VDP::Matematikk og Naturvitenskap: 400
VDP::Landbruks- og Fiskerifag: 900
Gel trap
Particulate organic carbon (POC)
Particle size spectra
Aggregate
Detritus
Glacial runoff
Wiedmann, Ingrid
Reigstad, Marit
Marquardt, Miriam
Vader, Anna
Gabrielsen, Tove M.
Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
topic_facet VDP::Matematikk og Naturvitenskap: 400
VDP::Landbruks- og Fiskerifag: 900
Gel trap
Particulate organic carbon (POC)
Particle size spectra
Aggregate
Detritus
Glacial runoff
description Source: http://dx.doi.org/10.1016/j.jmarsys.2015.10.003 A manuscript version of this article is part of Ingrid Wiedmann's doctoral thesis, which is available in Munin at http://hdl.handle.net/10037/8293 The arctic Adventfjorden (78°N, 15°E, Svalbard) used to be seasonally ice-covered but has mostly been ice-free since 2007. We used this ice-free arctic fjord as a model area to investigate (1) how the vertical fl ux of biomass (chlorophyll a and particulate organic carbon, POC) follows the seasonality of suspended material, (2) how sink- ing particle characteristics change seasonally and affect the vertical fl ux, and (3) if the vertical fl ux in the ice-free arctic fjord with glacial runoff resembles the fl ux in subarctic ice-free fjords. During seven fi eld investigations (December 2011 – September 2012), suspended biomass was determined (5, 15, 25, and 60 m), and short-term sediment traps were deployed (20, 30, 40, and 60 m), partly modi fi ed with gel- fi lled jars to study the size and frequency distribution of sinking particles. During winter, resuspension from the sea fl oor resulted in large, detrital sinking particles. Intense sedimentation of fresh biomass occurred during the spring bloom. The highest POC fl ux was found during autumn (770 – 1530 mg POC m − 2 d − 1 ), associated with sediment-loaded glacial runoff and high pteropod abundances. The vertical biomass fl ux in the ice-free arctic Adventfjorden thus resem- bled that in subarctic fjords during winter and spring, but a higher POC sedimentation was observed during autumn.
format Article in Journal/Newspaper
author Wiedmann, Ingrid
Reigstad, Marit
Marquardt, Miriam
Vader, Anna
Gabrielsen, Tove M.
author_facet Wiedmann, Ingrid
Reigstad, Marit
Marquardt, Miriam
Vader, Anna
Gabrielsen, Tove M.
author_sort Wiedmann, Ingrid
title Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
title_short Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
title_full Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
title_fullStr Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
title_full_unstemmed Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?
title_sort seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—different from subarctic fjords?
publisher Elsevier. Journal of Marine Systems
publishDate 2015
url https://hdl.handle.net/10037/10645
https://doi.org/10.1016/j.jmarsys.2015.10.003
long_lat ENVELOPE(15.515,15.515,78.258,78.258)
geographic Adventfjorden
Arctic
Svalbard
geographic_facet Adventfjorden
Arctic
Svalbard
genre Adventfjorden
Arctic
Arctic
Subarctic
Svalbard
genre_facet Adventfjorden
Arctic
Arctic
Subarctic
Svalbard
op_relation Journal of Marine Systems
Wiedmann I, Reigstad M, Marquardt M, Vader A, Gabrielsen TM. Seasonality of vertical flux and sinking particle characteristics in an ice-free high arctic fjord—Different from subarctic fjords?. Journal of Marine Systems. 2016;154(Part B):192-205
FRIDAID 1298510
doi:10.1016/j.jmarsys.2015.10.003
0924-7963
1879-1573
https://hdl.handle.net/10037/10645
op_rights openAccess
op_doi https://doi.org/10.1016/j.jmarsys.2015.10.003
container_title Journal of Marine Systems
container_volume 154
container_start_page 192
op_container_end_page 205
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