Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean
In recent decades, the central Arctic Ocean has been experiencing dramatic decline in sea ice coverage, thickness and extent, which is expected to have a tremendous impact on all levels of Arctic marine life. Here, we analyze the regional and temporal changes in pan-Arctic distribution and populatio...
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WILEY-BLACKWELL PUBLISHING
2021
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ftawi:oai:epic.awi.de:51801 2024-09-15T17:51:22+00:00 Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean Ershova, Elizaveta Kosobokova, Ksenia Banas, Neil Ellingsen, Ingrid Niehoff, Barbara Hildebrandt, Nicole Hirche, Hans-Jürgen 2021-10 https://epic.awi.de/id/eprint/51801/ https://hdl.handle.net/10013/epic.42501956-27cd-4fef-bd40-5736d039a061 unknown WILEY-BLACKWELL PUBLISHING Ershova, E. , Kosobokova, K. , Banas, N. , Ellingsen, I. , Niehoff, B. orcid:0000-0002-7483-9373 , Hildebrandt, N. and Hirche, H. J. (2021) Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean , Global Change Biology, 27 , pp. 2128-2143 . doi:10.1111/gcb.15562 <https://doi.org/10.1111/gcb.15562> , hdl:10013/epic.42501956-27cd-4fef-bd40-5736d039a061 EPIC3Global Change Biology, WILEY-BLACKWELL PUBLISHING, 27, pp. 2128-2143, ISSN: 1354-1013 Article isiRev 2021 ftawi https://doi.org/10.1111/gcb.15562 2024-06-24T04:24:41Z In recent decades, the central Arctic Ocean has been experiencing dramatic decline in sea ice coverage, thickness and extent, which is expected to have a tremendous impact on all levels of Arctic marine life. Here, we analyze the regional and temporal changes in pan-Arctic distribution and population structure of the key zooplankton species Calanus glacialis and C. hyperboreus in relation to recent changes in ice conditions, based on historical (1993–1998) and recent (2007–2016) zooplankton collections and satellite-based sea ice observations. We found strong correlations between Calanus abundance/population structure and a number of sea ice parameters. These relationships were particularly strong for C. glacialis, with higher numbers being observed at locations with a lower ice concentration, a shorter distance to the ice edge, and more days of open water. Interestingly, early stages of C. hyperboreus followed the same trends, suggesting that these two species substantially overlap in their core distribution area in the Arctic Ocean. Calanus glacialis and C. hyperboreus have been historically classified as shelf versus basin species, yet we conclude that both species can inhabit a wide range of bottom depths and their distribution in the Arctic Ocean is largely shaped by sea ice dynamics. Our data suggest that the core distribution patterns of these key zooplankton are shifting northwards with retreating sea ice and changing climate conditions. Article in Journal/Newspaper Arctic Arctic Ocean Calanus glacialis Sea ice Zooplankton Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Global Change Biology 27 10 2128 2143 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
In recent decades, the central Arctic Ocean has been experiencing dramatic decline in sea ice coverage, thickness and extent, which is expected to have a tremendous impact on all levels of Arctic marine life. Here, we analyze the regional and temporal changes in pan-Arctic distribution and population structure of the key zooplankton species Calanus glacialis and C. hyperboreus in relation to recent changes in ice conditions, based on historical (1993–1998) and recent (2007–2016) zooplankton collections and satellite-based sea ice observations. We found strong correlations between Calanus abundance/population structure and a number of sea ice parameters. These relationships were particularly strong for C. glacialis, with higher numbers being observed at locations with a lower ice concentration, a shorter distance to the ice edge, and more days of open water. Interestingly, early stages of C. hyperboreus followed the same trends, suggesting that these two species substantially overlap in their core distribution area in the Arctic Ocean. Calanus glacialis and C. hyperboreus have been historically classified as shelf versus basin species, yet we conclude that both species can inhabit a wide range of bottom depths and their distribution in the Arctic Ocean is largely shaped by sea ice dynamics. Our data suggest that the core distribution patterns of these key zooplankton are shifting northwards with retreating sea ice and changing climate conditions. |
format |
Article in Journal/Newspaper |
author |
Ershova, Elizaveta Kosobokova, Ksenia Banas, Neil Ellingsen, Ingrid Niehoff, Barbara Hildebrandt, Nicole Hirche, Hans-Jürgen |
spellingShingle |
Ershova, Elizaveta Kosobokova, Ksenia Banas, Neil Ellingsen, Ingrid Niehoff, Barbara Hildebrandt, Nicole Hirche, Hans-Jürgen Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
author_facet |
Ershova, Elizaveta Kosobokova, Ksenia Banas, Neil Ellingsen, Ingrid Niehoff, Barbara Hildebrandt, Nicole Hirche, Hans-Jürgen |
author_sort |
Ershova, Elizaveta |
title |
Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
title_short |
Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
title_full |
Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
title_fullStr |
Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
title_full_unstemmed |
Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean |
title_sort |
sea ice decline drives biogeographical shifts of key calanus species in the central arctic ocean |
publisher |
WILEY-BLACKWELL PUBLISHING |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/51801/ https://hdl.handle.net/10013/epic.42501956-27cd-4fef-bd40-5736d039a061 |
genre |
Arctic Arctic Ocean Calanus glacialis Sea ice Zooplankton |
genre_facet |
Arctic Arctic Ocean Calanus glacialis Sea ice Zooplankton |
op_source |
EPIC3Global Change Biology, WILEY-BLACKWELL PUBLISHING, 27, pp. 2128-2143, ISSN: 1354-1013 |
op_relation |
Ershova, E. , Kosobokova, K. , Banas, N. , Ellingsen, I. , Niehoff, B. orcid:0000-0002-7483-9373 , Hildebrandt, N. and Hirche, H. J. (2021) Sea ice decline drives biogeographical shifts of key Calanus species in the central Arctic Ocean , Global Change Biology, 27 , pp. 2128-2143 . doi:10.1111/gcb.15562 <https://doi.org/10.1111/gcb.15562> , hdl:10013/epic.42501956-27cd-4fef-bd40-5736d039a061 |
op_doi |
https://doi.org/10.1111/gcb.15562 |
container_title |
Global Change Biology |
container_volume |
27 |
container_issue |
10 |
container_start_page |
2128 |
op_container_end_page |
2143 |
_version_ |
1810293253775294464 |