Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012
Arctic sea-ice decline is expected to have a significant impact on Arctic marine ecosystems. Ice-associated fauna play a key role in this context because they constitute a unique part of Arctic biodiversity and transmit carbon from sea-ice algae into pelagic and benthic food webs. Our study presents...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.858588 2023-05-15T13:22:42+02:00 Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 David, Carmen L Lange, Benjamin Allen Rabe, Benjamin Flores, Hauke MEDIAN LATITUDE: 83.505777 * MEDIAN LONGITUDE: 70.815342 * SOUTH-BOUND LATITUDE: 81.454500 * WEST-BOUND LONGITUDE: 17.840000 * NORTH-BOUND LATITUDE: 87.890330 * EAST-BOUND LONGITUDE: 130.855830 * DATE/TIME START: 2012-08-05T16:40:00 * DATE/TIME END: 2012-09-29T19:01:00 2015-03-07 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.858588 https://doi.org/10.1594/PANGAEA.858588 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.858588 https://doi.org/10.1594/PANGAEA.858588 CC-BY-NC-ND-3.0: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY-NC-ND Supplement to: David, Carmen L; Lange, Benjamin Allen; Rabe, Benjamin; Flores, Hauke (2015): Community structure of under-ice fauna in the Eurasian central Arctic Ocean in relation to environmental properties of sea-ice habitats. Marine Ecology Progress Series, 522, 15-32, https://doi.org/10.3354/meps11156 Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.858588 https://doi.org/10.3354/meps11156 2023-01-20T07:33:41Z Arctic sea-ice decline is expected to have a significant impact on Arctic marine ecosystems. Ice-associated fauna play a key role in this context because they constitute a unique part of Arctic biodiversity and transmit carbon from sea-ice algae into pelagic and benthic food webs. Our study presents the first regional-scale record of under-ice faunal distribution and the environmental characteristics of under-ice habitats throughout the Eurasian Basin. Sampling was conducted with a Surface and Under-Ice Trawl, equipped with a sensor array recording ice thickness and other physical parameters during trawling. We identified 2 environmental regimes, broadly coherent with the Nansen and Amundsen Basins. The Nansen Basin regime was distinguished from the Amundsen Basin regime by heavier sea-ice conditions, higher surface salinities and higher nitrate + nitrite concentrations. We found a diverse (28 species) under-ice community throughout the Eurasian Basin. Change in community structure reflected differences in the relative contribution of abundant species. Copepods (Calanus hyperboreus and C. glacialis) dominated in the Nansen Basin regime. In the Amundsen Basin regime, amphipods (Apherusa glacialis, Themisto libellula) dominated. Polar cod Boreogadus saida was present throughout the sampling area. Abrupt changes from a dominance of ice-associated amphipods at ice-covered stations to a dominance of pelagic amphipods (T. libellula) at nearby ice-free stations emphasised the decisive influence of sea ice on small-scale patterns in the surface-layer community. The observed response in community composition to different environmental regimes indicates potential long-term alterations in Arctic marine ecosystems as the Arctic Ocean continues to change. Dataset amundsen basin Arctic Arctic biodiversity Arctic Arctic Ocean Boreogadus saida Calanus hyperboreus ice algae Nansen Basin polar cod Sea ice Themisto Themisto libellula Copepods PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(17.840000,130.855830,87.890330,81.454500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Arctic sea-ice decline is expected to have a significant impact on Arctic marine ecosystems. Ice-associated fauna play a key role in this context because they constitute a unique part of Arctic biodiversity and transmit carbon from sea-ice algae into pelagic and benthic food webs. Our study presents the first regional-scale record of under-ice faunal distribution and the environmental characteristics of under-ice habitats throughout the Eurasian Basin. Sampling was conducted with a Surface and Under-Ice Trawl, equipped with a sensor array recording ice thickness and other physical parameters during trawling. We identified 2 environmental regimes, broadly coherent with the Nansen and Amundsen Basins. The Nansen Basin regime was distinguished from the Amundsen Basin regime by heavier sea-ice conditions, higher surface salinities and higher nitrate + nitrite concentrations. We found a diverse (28 species) under-ice community throughout the Eurasian Basin. Change in community structure reflected differences in the relative contribution of abundant species. Copepods (Calanus hyperboreus and C. glacialis) dominated in the Nansen Basin regime. In the Amundsen Basin regime, amphipods (Apherusa glacialis, Themisto libellula) dominated. Polar cod Boreogadus saida was present throughout the sampling area. Abrupt changes from a dominance of ice-associated amphipods at ice-covered stations to a dominance of pelagic amphipods (T. libellula) at nearby ice-free stations emphasised the decisive influence of sea ice on small-scale patterns in the surface-layer community. The observed response in community composition to different environmental regimes indicates potential long-term alterations in Arctic marine ecosystems as the Arctic Ocean continues to change. |
format |
Dataset |
author |
David, Carmen L Lange, Benjamin Allen Rabe, Benjamin Flores, Hauke |
spellingShingle |
David, Carmen L Lange, Benjamin Allen Rabe, Benjamin Flores, Hauke Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
author_facet |
David, Carmen L Lange, Benjamin Allen Rabe, Benjamin Flores, Hauke |
author_sort |
David, Carmen L |
title |
Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
title_short |
Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
title_full |
Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
title_fullStr |
Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
title_full_unstemmed |
Under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the Eurasian central Arctic Ocean during POLARSTERN cruise ARK-XXVII/3 (PS80) in August-September 2012 |
title_sort |
under-ice fauna, sea-ice concentration, sea-ice thickness and under-ice water parameters from the eurasian central arctic ocean during polarstern cruise ark-xxvii/3 (ps80) in august-september 2012 |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.858588 https://doi.org/10.1594/PANGAEA.858588 |
op_coverage |
MEDIAN LATITUDE: 83.505777 * MEDIAN LONGITUDE: 70.815342 * SOUTH-BOUND LATITUDE: 81.454500 * WEST-BOUND LONGITUDE: 17.840000 * NORTH-BOUND LATITUDE: 87.890330 * EAST-BOUND LONGITUDE: 130.855830 * DATE/TIME START: 2012-08-05T16:40:00 * DATE/TIME END: 2012-09-29T19:01:00 |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(17.840000,130.855830,87.890330,81.454500) |
geographic |
Arctic Arctic Ocean Amundsen Basin |
geographic_facet |
Arctic Arctic Ocean Amundsen Basin |
genre |
amundsen basin Arctic Arctic biodiversity Arctic Arctic Ocean Boreogadus saida Calanus hyperboreus ice algae Nansen Basin polar cod Sea ice Themisto Themisto libellula Copepods |
genre_facet |
amundsen basin Arctic Arctic biodiversity Arctic Arctic Ocean Boreogadus saida Calanus hyperboreus ice algae Nansen Basin polar cod Sea ice Themisto Themisto libellula Copepods |
op_source |
Supplement to: David, Carmen L; Lange, Benjamin Allen; Rabe, Benjamin; Flores, Hauke (2015): Community structure of under-ice fauna in the Eurasian central Arctic Ocean in relation to environmental properties of sea-ice habitats. Marine Ecology Progress Series, 522, 15-32, https://doi.org/10.3354/meps11156 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.858588 https://doi.org/10.1594/PANGAEA.858588 |
op_rights |
CC-BY-NC-ND-3.0: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1594/PANGAEA.858588 https://doi.org/10.3354/meps11156 |
_version_ |
1766366399662391296 |