Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea.
Direct and indirect effects of global warming are expected to be pronounced and fast in the Arctic, impacting terrestrial, freshwater and marine ecosystems. The Barents Sea is a high latitude shelf Sea and a boundary area between arctic and boreal faunas. These faunas are likely to respond different...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2012
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0034924 https://doaj.org/article/c1e2ccc7cd184eb98b838942d2b17b24 |
id |
ftdoajarticles:oai:doaj.org/article:c1e2ccc7cd184eb98b838942d2b17b24 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:c1e2ccc7cd184eb98b838942d2b17b24 2023-05-15T14:48:17+02:00 Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. Edda Johannesen Åge S Høines Andrey V Dolgov Maria Fossheim 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0034924 https://doaj.org/article/c1e2ccc7cd184eb98b838942d2b17b24 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3328492?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0034924 https://doaj.org/article/c1e2ccc7cd184eb98b838942d2b17b24 PLoS ONE, Vol 7, Iss 4, p e34924 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0034924 2022-12-31T10:33:16Z Direct and indirect effects of global warming are expected to be pronounced and fast in the Arctic, impacting terrestrial, freshwater and marine ecosystems. The Barents Sea is a high latitude shelf Sea and a boundary area between arctic and boreal faunas. These faunas are likely to respond differently to changes in climate. In addition, the Barents Sea is highly impacted by fisheries and other human activities. This strong human presence places great demands on scientific investigation and advisory capacity. In order to identify basic community structures against which future climate related or other human induced changes could be evaluated, we analyzed species composition and diversity of demersal fish in the Barents Sea. We found six main assemblages that were separated along depth and temperature gradients. There are indications that climate driven changes have already taken place, since boreal species were found in large parts of the Barents Sea shelf, including also the northern Arctic area. When modelling diversity as a function of depth and temperature, we found that two of the assemblages in the eastern Barents Sea showed lower diversity than expected from their depth and temperature. This is probably caused by low habitat complexity and the distance to the pool of boreal species in the western Barents Sea. In contrast coastal assemblages in south western Barents Sea and along Novaya Zemlya archipelago in the Eastern Barents Sea can be described as diversity "hotspots"; the South-western area had high density of species, abundance and biomass, and here some species have their northern distribution limit, whereas the Novaya Zemlya area has unique fauna of Arctic, coastal demersal fish. (see Information S1 for abstract in Russian). Article in Journal/Newspaper Arctic Barents Sea Global warming Novaya Zemlya Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea PLoS ONE 7 4 e34924 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Edda Johannesen Åge S Høines Andrey V Dolgov Maria Fossheim Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
topic_facet |
Medicine R Science Q |
description |
Direct and indirect effects of global warming are expected to be pronounced and fast in the Arctic, impacting terrestrial, freshwater and marine ecosystems. The Barents Sea is a high latitude shelf Sea and a boundary area between arctic and boreal faunas. These faunas are likely to respond differently to changes in climate. In addition, the Barents Sea is highly impacted by fisheries and other human activities. This strong human presence places great demands on scientific investigation and advisory capacity. In order to identify basic community structures against which future climate related or other human induced changes could be evaluated, we analyzed species composition and diversity of demersal fish in the Barents Sea. We found six main assemblages that were separated along depth and temperature gradients. There are indications that climate driven changes have already taken place, since boreal species were found in large parts of the Barents Sea shelf, including also the northern Arctic area. When modelling diversity as a function of depth and temperature, we found that two of the assemblages in the eastern Barents Sea showed lower diversity than expected from their depth and temperature. This is probably caused by low habitat complexity and the distance to the pool of boreal species in the western Barents Sea. In contrast coastal assemblages in south western Barents Sea and along Novaya Zemlya archipelago in the Eastern Barents Sea can be described as diversity "hotspots"; the South-western area had high density of species, abundance and biomass, and here some species have their northern distribution limit, whereas the Novaya Zemlya area has unique fauna of Arctic, coastal demersal fish. (see Information S1 for abstract in Russian). |
format |
Article in Journal/Newspaper |
author |
Edda Johannesen Åge S Høines Andrey V Dolgov Maria Fossheim |
author_facet |
Edda Johannesen Åge S Høines Andrey V Dolgov Maria Fossheim |
author_sort |
Edda Johannesen |
title |
Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
title_short |
Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
title_full |
Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
title_fullStr |
Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
title_full_unstemmed |
Demersal fish assemblages and spatial diversity patterns in the Arctic-Atlantic transition zone in the Barents Sea. |
title_sort |
demersal fish assemblages and spatial diversity patterns in the arctic-atlantic transition zone in the barents sea. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0034924 https://doaj.org/article/c1e2ccc7cd184eb98b838942d2b17b24 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Global warming Novaya Zemlya |
genre_facet |
Arctic Barents Sea Global warming Novaya Zemlya |
op_source |
PLoS ONE, Vol 7, Iss 4, p e34924 (2012) |
op_relation |
http://europepmc.org/articles/PMC3328492?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0034924 https://doaj.org/article/c1e2ccc7cd184eb98b838942d2b17b24 |
op_doi |
https://doi.org/10.1371/journal.pone.0034924 |
container_title |
PLoS ONE |
container_volume |
7 |
container_issue |
4 |
container_start_page |
e34924 |
_version_ |
1766319370830610432 |