Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard)
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...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | https://repository.publisso.de/resource/frl:6428979 https://doi.org/10.3389/fmars.2019.00667 https://www.frontiersin.org/articles/10.3389/fmars.2019.00667/full#h9 |
id |
ftzbmed:oai:frl.publisso.de:frl:6428979 |
---|---|
record_format |
openpolar |
spelling |
ftzbmed:oai:frl.publisso.de:frl:6428979 2023-07-30T04:02:09+02:00 Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) Wisshak, Max Neumann, Hermann Rüggeberg, Andres Büscher, Janina V. Linke, Peter Raddatz, Jacek 2019 https://repository.publisso.de/resource/frl:6428979 https://doi.org/10.3389/fmars.2019.00667 https://www.frontiersin.org/articles/10.3389/fmars.2019.00667/full#h9 eng eng https://repository.publisso.de/resource/frl:6428979 https://doi.org/10.3389/fmars.2019.00667 https://www.frontiersin.org/articles/10.3389/fmars.2019.00667/full#h9 CC BY 4.0 Frontiers in Marine Science, 6:667 polar environments nutrient regime stable isotopes aqueous carbonate system feeding activity motion tracking macrobenthos biodiversity carbonate factories Zeitschriftenartikel 2019 ftzbmed https://doi.org/10.3389/fmars.2019.00667 2023-07-16T22:08:30Z 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 (pCO2) 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. ... Article in Journal/Newspaper Arctic Phytoplankton Sea ice Svalbard Spitsbergen PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Arctic Banken ENVELOPE(25.108,25.108,70.963,70.963) Bjørnøy ENVELOPE(18.167,18.167,69.767,69.767) Mosselbukta ENVELOPE(15.955,15.955,79.891,79.891) Svalbard Svalbard Archipelago Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
polar environments nutrient regime stable isotopes aqueous carbonate system feeding activity motion tracking macrobenthos biodiversity carbonate factories |
spellingShingle |
polar environments nutrient regime stable isotopes aqueous carbonate system feeding activity motion tracking macrobenthos biodiversity carbonate factories Wisshak, Max Neumann, Hermann Rüggeberg, Andres Büscher, Janina V. Linke, Peter Raddatz, Jacek Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
topic_facet |
polar environments nutrient regime stable isotopes aqueous carbonate system feeding activity motion tracking macrobenthos biodiversity carbonate factories |
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 (pCO2) 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 |
Article in Journal/Newspaper |
author |
Wisshak, Max Neumann, Hermann Rüggeberg, Andres Büscher, Janina V. Linke, Peter Raddatz, Jacek |
author_facet |
Wisshak, Max Neumann, Hermann Rüggeberg, Andres Büscher, Janina V. Linke, Peter Raddatz, Jacek |
author_sort |
Wisshak, Max |
title |
Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
title_short |
Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
title_full |
Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
title_fullStr |
Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
title_full_unstemmed |
Epibenthos Dynamics and Environmental Fluctuations in Two Contrasting Polar Carbonate Factories (Mosselbukta and Bjørnøy-Banken, Svalbard) |
title_sort |
epibenthos dynamics and environmental fluctuations in two contrasting polar carbonate factories (mosselbukta and bjørnøy-banken, svalbard) |
publishDate |
2019 |
url |
https://repository.publisso.de/resource/frl:6428979 https://doi.org/10.3389/fmars.2019.00667 https://www.frontiersin.org/articles/10.3389/fmars.2019.00667/full#h9 |
long_lat |
ENVELOPE(25.108,25.108,70.963,70.963) ENVELOPE(18.167,18.167,69.767,69.767) ENVELOPE(15.955,15.955,79.891,79.891) |
geographic |
Arctic Banken Bjørnøy Mosselbukta Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Banken Bjørnøy Mosselbukta Svalbard Svalbard Archipelago |
genre |
Arctic Phytoplankton Sea ice Svalbard Spitsbergen |
genre_facet |
Arctic Phytoplankton Sea ice Svalbard Spitsbergen |
op_source |
Frontiers in Marine Science, 6:667 |
op_relation |
https://repository.publisso.de/resource/frl:6428979 https://doi.org/10.3389/fmars.2019.00667 https://www.frontiersin.org/articles/10.3389/fmars.2019.00667/full#h9 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2019.00667 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
_version_ |
1772812888945197056 |