Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN
Time-series studies of arctic marine ecosystems are rare. This is not surprising since polar regions arelargely only accessible by means of expensive modern infrastructure and instrumentation. In 1999, theAlfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research (AWI) established the...
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Online Access: | http://resolver.sub.uni-goettingen.de/purl?gs-1/14000 https://doi.org/10.1016/j.ecolind.2015.10.001 |
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ftsubgoettingen:oai:goescholar:1/14000 2023-05-15T14:55:41+02:00 Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN Soltwedel, Thomas Bauerfeind, Eduard Bergmann, Melanie Bracher, Astrid Budaeva, Nataliya Busch, Kathrin Cherkasheva, Alexandra Fahl, Kirsten Grzelak, Katarzyna Hasemann, Christiane Jacob, Marianne Kraft, Angelina Lalande, Catherine Metfies, Katja Nöthig, Eva-Maria Meyer, Kirstin Quéric, Nadia-Valérie Schewe, Ingo Włodarska-Kowalczuk, Maria Klages, Michael 2016 http://resolver.sub.uni-goettingen.de/purl?gs-1/14000 https://doi.org/10.1016/j.ecolind.2015.10.001 eng eng info:eu-repo/grantAgreement/EC/FP7/294757/EU/Assessment of bacterial life and matter cycling in deep-sea surface sediments/ABYSS 1470-160X 1470160X http://resolver.sub.uni-goettingen.de/purl?gs-1/14000 doi:10.1016/j.ecolind.2015.10.001 openAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND HAUSGARTEN Arctic Ocean Deep sea Natural variability Anthropogenic impact journalArticle publishedVersion 2016 ftsubgoettingen https://doi.org/10.1016/j.ecolind.2015.10.001 2022-11-02T09:28:51Z Time-series studies of arctic marine ecosystems are rare. This is not surprising since polar regions arelargely only accessible by means of expensive modern infrastructure and instrumentation. In 1999, theAlfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research (AWI) established the LTER(Long-Term Ecological Research) observatory HAUSGARTEN crossing the Fram Strait at about 79◦N.Multidisciplinary investigations covering all parts of the open-ocean ecosystem are carried out at a totalof 21 permanent sampling sites in water depths ranging between 250 and 5500 m. From the outset,repeated sampling in the water column and at the deep seafloor during regular expeditions in summermonths was complemented by continuous year-round sampling and sensing using autonomous instru-ments in anchored devices (i.e., moorings and free-falling systems). The central HAUSGARTEN stationat 2500 m water depth in the eastern Fram Strait serves as an experimental area for unique biologicalin situ experiments at the seafloor, simulating various scenarios in changing environmental settings.Long-term ecological research at the HAUSGARTEN observatory revealed a number of interesting tem-poral trends in numerous biological variables from the pelagic system to the deep seafloor. Contrary tocommon intuition, the entire ecosystem responded exceptionally fast to environmental changes in theupper water column. Major variations were associated with a Warm-Water-Anomaly evident in sur-face waters in eastern parts of the Fram Strait between 2005 and 2008. However, even after 15 years ofintense time-series work at HAUSGARTEN, we cannot yet predict with complete certainty whether thesetrends indicate lasting alterations due to anthropologically-induced global environmental changes of thesystem, or whether they reflect natural variability on multiyear time-scales, for example, in relation todecadal oscillatory atmospheric processes. peerReviewed Article in Journal/Newspaper Arctic Arctic Ocean Fram Strait Georg-August-Universität Göttingen: GoeScholar Arctic Arctic Ocean Ecological Indicators 65 89 102 |
institution |
Open Polar |
collection |
Georg-August-Universität Göttingen: GoeScholar |
op_collection_id |
ftsubgoettingen |
language |
English |
topic |
HAUSGARTEN Arctic Ocean Deep sea Natural variability Anthropogenic impact |
spellingShingle |
HAUSGARTEN Arctic Ocean Deep sea Natural variability Anthropogenic impact Soltwedel, Thomas Bauerfeind, Eduard Bergmann, Melanie Bracher, Astrid Budaeva, Nataliya Busch, Kathrin Cherkasheva, Alexandra Fahl, Kirsten Grzelak, Katarzyna Hasemann, Christiane Jacob, Marianne Kraft, Angelina Lalande, Catherine Metfies, Katja Nöthig, Eva-Maria Meyer, Kirstin Quéric, Nadia-Valérie Schewe, Ingo Włodarska-Kowalczuk, Maria Klages, Michael Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
topic_facet |
HAUSGARTEN Arctic Ocean Deep sea Natural variability Anthropogenic impact |
description |
Time-series studies of arctic marine ecosystems are rare. This is not surprising since polar regions arelargely only accessible by means of expensive modern infrastructure and instrumentation. In 1999, theAlfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research (AWI) established the LTER(Long-Term Ecological Research) observatory HAUSGARTEN crossing the Fram Strait at about 79◦N.Multidisciplinary investigations covering all parts of the open-ocean ecosystem are carried out at a totalof 21 permanent sampling sites in water depths ranging between 250 and 5500 m. From the outset,repeated sampling in the water column and at the deep seafloor during regular expeditions in summermonths was complemented by continuous year-round sampling and sensing using autonomous instru-ments in anchored devices (i.e., moorings and free-falling systems). The central HAUSGARTEN stationat 2500 m water depth in the eastern Fram Strait serves as an experimental area for unique biologicalin situ experiments at the seafloor, simulating various scenarios in changing environmental settings.Long-term ecological research at the HAUSGARTEN observatory revealed a number of interesting tem-poral trends in numerous biological variables from the pelagic system to the deep seafloor. Contrary tocommon intuition, the entire ecosystem responded exceptionally fast to environmental changes in theupper water column. Major variations were associated with a Warm-Water-Anomaly evident in sur-face waters in eastern parts of the Fram Strait between 2005 and 2008. However, even after 15 years ofintense time-series work at HAUSGARTEN, we cannot yet predict with complete certainty whether thesetrends indicate lasting alterations due to anthropologically-induced global environmental changes of thesystem, or whether they reflect natural variability on multiyear time-scales, for example, in relation todecadal oscillatory atmospheric processes. peerReviewed |
format |
Article in Journal/Newspaper |
author |
Soltwedel, Thomas Bauerfeind, Eduard Bergmann, Melanie Bracher, Astrid Budaeva, Nataliya Busch, Kathrin Cherkasheva, Alexandra Fahl, Kirsten Grzelak, Katarzyna Hasemann, Christiane Jacob, Marianne Kraft, Angelina Lalande, Catherine Metfies, Katja Nöthig, Eva-Maria Meyer, Kirstin Quéric, Nadia-Valérie Schewe, Ingo Włodarska-Kowalczuk, Maria Klages, Michael |
author_facet |
Soltwedel, Thomas Bauerfeind, Eduard Bergmann, Melanie Bracher, Astrid Budaeva, Nataliya Busch, Kathrin Cherkasheva, Alexandra Fahl, Kirsten Grzelak, Katarzyna Hasemann, Christiane Jacob, Marianne Kraft, Angelina Lalande, Catherine Metfies, Katja Nöthig, Eva-Maria Meyer, Kirstin Quéric, Nadia-Valérie Schewe, Ingo Włodarska-Kowalczuk, Maria Klages, Michael |
author_sort |
Soltwedel, Thomas |
title |
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
title_short |
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
title_full |
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
title_fullStr |
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
title_full_unstemmed |
Natural variability or anthropogenically-induced variation? Insights from 15 years of multidisciplinary observations at the arctic marine LTER site HAUSGARTEN |
title_sort |
natural variability or anthropogenically-induced variation? insights from 15 years of multidisciplinary observations at the arctic marine lter site hausgarten |
publishDate |
2016 |
url |
http://resolver.sub.uni-goettingen.de/purl?gs-1/14000 https://doi.org/10.1016/j.ecolind.2015.10.001 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Fram Strait |
genre_facet |
Arctic Arctic Ocean Fram Strait |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/294757/EU/Assessment of bacterial life and matter cycling in deep-sea surface sediments/ABYSS 1470-160X 1470160X http://resolver.sub.uni-goettingen.de/purl?gs-1/14000 doi:10.1016/j.ecolind.2015.10.001 |
op_rights |
openAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.ecolind.2015.10.001 |
container_title |
Ecological Indicators |
container_volume |
65 |
container_start_page |
89 |
op_container_end_page |
102 |
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1766327710428168192 |