Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4
The Arctic Svalbard Archipelago hosts the world’s northernmost cold-water ‘carbonate factories’ thriving here despite of presumably unfavourable environmental conditions and extreme seasonality. Two contrasting sites of intense biogenic carbonate production, the rhodolith beds in Mosselbukta in the...
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ftfrontimediafig:oai:figshare.com:article/11277083 2023-05-15T15:16:37+02:00 Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 Max Wisshak Hermann Neumann Andres Rüggeberg Janina V. Büscher Peter Linke Jacek Raddatz 2019-11-27T09:03:41Z https://doi.org/10.3389/fmars.2019.00667.s008 https://figshare.com/articles/Video_3_Epibenthos_Dynamics_and_Environmental_Fluctuations_in_Two_Contrasting_Polar_Carbonate_Factories_Mosselbukta_and_Bj_rn_y-Banken_Svalbard_MP4/11277083 unknown doi:10.3389/fmars.2019.00667.s008 https://figshare.com/articles/Video_3_Epibenthos_Dynamics_and_Environmental_Fluctuations_in_Two_Contrasting_Polar_Carbonate_Factories_Mosselbukta_and_Bj_rn_y-Banken_Svalbard_MP4/11277083 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering carbonate factories polar environments nutrient regime aqueous carbonate system stable isotopes macrobenthos biodiversity feeding activity motion tracking Dataset Media 2019 ftfrontimediafig https://doi.org/10.3389/fmars.2019.00667.s008 2019-11-27T23:49:20Z The Arctic Svalbard Archipelago hosts the world’s northernmost cold-water ‘carbonate factories’ thriving here despite of presumably unfavourable environmental conditions and extreme seasonality. Two contrasting sites of intense biogenic carbonate production, the rhodolith beds in Mosselbukta in the north of the archipelago and the barnacle-mollusc dominated carbonate sediments accumulating in the strong hydrodynamic regime of the Bjørnøy-Banken south of Spitsbergen, were the targets of the RV Maria S. Merian cruise 55 in June 2016. By integrating data from physical oceanography, marine biology, and marine geology, the present contribution characterises the environmental setting and biosedimentary dynamics of these two polar carbonate factories. Repetitive CTD profiling in concert with autonomous temperature/salinity loggers on a long-term settlement platform identified spatiotemporal patterns in the involved Atlantic and Polar water masses, whereas short-term deployments of a lander revealed fluctuations of environmental variables in the rhodolith beds in Mosselbukta and at same depth (46 m) at Bjørnøy-Banken. At both sites, dissolved inorganic nutrients in the water column were found depleted (except for elevated ammonium concentrations) and show an overall increase in concentration and N:P ratios toward deeper waters. This indicates that a recycling system was fuelling primary production after the phytoplankton spring bloom at the time of sampling in June 2016. Accordingly, oxygen levels were found elevated and carbon dioxide concentrations (pCO 2 ) markedly reduced, on average only half the expected equilibrium values. Backed up by seawater stable carbon and oxygen isotope signatures, this is interpreted as an effect of limited air-sea gas exchange during seasonal ice cover in combination with a boost in community photosynthesis during the spring phytoplankton bloom. The observed trends are enhanced by the onset of rhodophyte photosynthesis in the rhodolith beds during the polar day upon retreat of sea-ice. ... Dataset Arctic Phytoplankton Sea ice Svalbard Spitsbergen Frontiers: Figshare Arctic Svalbard Svalbard Archipelago Banken ENVELOPE(25.108,25.108,70.963,70.963) Mosselbukta ENVELOPE(15.955,15.955,79.891,79.891) Bjørnøy ENVELOPE(18.167,18.167,69.767,69.767) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering carbonate factories polar environments nutrient regime aqueous carbonate system stable isotopes macrobenthos biodiversity feeding activity motion tracking |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering carbonate factories polar environments nutrient regime aqueous carbonate system stable isotopes macrobenthos biodiversity feeding activity motion tracking Max Wisshak Hermann Neumann Andres Rüggeberg Janina V. Büscher Peter Linke Jacek Raddatz Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering carbonate factories polar environments nutrient regime aqueous carbonate system stable isotopes macrobenthos biodiversity feeding activity motion tracking |
description |
The Arctic Svalbard Archipelago hosts the world’s northernmost cold-water ‘carbonate factories’ thriving here despite of presumably unfavourable environmental conditions and extreme seasonality. Two contrasting sites of intense biogenic carbonate production, the rhodolith beds in Mosselbukta in the north of the archipelago and the barnacle-mollusc dominated carbonate sediments accumulating in the strong hydrodynamic regime of the Bjørnøy-Banken south of Spitsbergen, were the targets of the RV Maria S. Merian cruise 55 in June 2016. By integrating data from physical oceanography, marine biology, and marine geology, the present contribution characterises the environmental setting and biosedimentary dynamics of these two polar carbonate factories. Repetitive CTD profiling in concert with autonomous temperature/salinity loggers on a long-term settlement platform identified spatiotemporal patterns in the involved Atlantic and Polar water masses, whereas short-term deployments of a lander revealed fluctuations of environmental variables in the rhodolith beds in Mosselbukta and at same depth (46 m) at Bjørnøy-Banken. At both sites, dissolved inorganic nutrients in the water column were found depleted (except for elevated ammonium concentrations) and show an overall increase in concentration and N:P ratios toward deeper waters. This indicates that a recycling system was fuelling primary production after the phytoplankton spring bloom at the time of sampling in June 2016. Accordingly, oxygen levels were found elevated and carbon dioxide concentrations (pCO 2 ) markedly reduced, on average only half the expected equilibrium values. Backed up by seawater stable carbon and oxygen isotope signatures, this is interpreted as an effect of limited air-sea gas exchange during seasonal ice cover in combination with a boost in community photosynthesis during the spring phytoplankton bloom. The observed trends are enhanced by the onset of rhodophyte photosynthesis in the rhodolith beds during the polar day upon retreat of sea-ice. ... |
format |
Dataset |
author |
Max Wisshak Hermann Neumann Andres Rüggeberg Janina V. Büscher Peter Linke Jacek Raddatz |
author_facet |
Max Wisshak Hermann Neumann Andres Rüggeberg Janina V. Büscher Peter Linke Jacek Raddatz |
author_sort |
Max Wisshak |
title |
Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
title_short |
Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
title_full |
Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
title_fullStr |
Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
title_full_unstemmed |
Video_3_Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard).MP4 |
title_sort |
video_3_epibenthos dynamics and environmental fluctuations in two contrasting polar carbonate factories (mosselbukta and bjørnøy-banken, svalbard).mp4 |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2019.00667.s008 https://figshare.com/articles/Video_3_Epibenthos_Dynamics_and_Environmental_Fluctuations_in_Two_Contrasting_Polar_Carbonate_Factories_Mosselbukta_and_Bj_rn_y-Banken_Svalbard_MP4/11277083 |
long_lat |
ENVELOPE(25.108,25.108,70.963,70.963) ENVELOPE(15.955,15.955,79.891,79.891) ENVELOPE(18.167,18.167,69.767,69.767) |
geographic |
Arctic Svalbard Svalbard Archipelago Banken Mosselbukta Bjørnøy |
geographic_facet |
Arctic Svalbard Svalbard Archipelago Banken Mosselbukta Bjørnøy |
genre |
Arctic Phytoplankton Sea ice Svalbard Spitsbergen |
genre_facet |
Arctic Phytoplankton Sea ice Svalbard Spitsbergen |
op_relation |
doi:10.3389/fmars.2019.00667.s008 https://figshare.com/articles/Video_3_Epibenthos_Dynamics_and_Environmental_Fluctuations_in_Two_Contrasting_Polar_Carbonate_Factories_Mosselbukta_and_Bj_rn_y-Banken_Svalbard_MP4/11277083 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2019.00667.s008 |
_version_ |
1766346912512868352 |