Source, density and composition of sympagic fauna in the Barents Sea
The sympagic fauna (= ice fauna) of the Barents Sea was investigated on nine different cruises in 1982-1988. Each cruise lasted from two to five weeks. Sampling techniques were based on scuba diving. The abundant sympagic organisms were the polar cod (Boreogadus saida) and the three amphipods Apheru...
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Norwegian Polar Institute
1991
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ftjpolarres:oai:journals.openacademia.net:article/2318 2023-05-15T15:38:39+02:00 Source, density and composition of sympagic fauna in the Barents Sea Lønne, Ole J. Gulllksen, Bjørn 1991-01-09 application/pdf https://polarresearch.net/index.php/polar/article/view/2318 https://doi.org/10.3402/polar.v10i1.6747 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2318/5568 https://polarresearch.net/index.php/polar/article/view/2318 doi:10.3402/polar.v10i1.6747 Copyright (c) 2018 Polar Research Polar Research; Vol. 10 No. 1: Special issue: Proceedings of the Pro Mare Symposium on Polar Marine Ecology. Part 1; 289-294 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1991 ftjpolarres https://doi.org/10.3402/polar.v10i1.6747 2021-11-11T19:12:32Z The sympagic fauna (= ice fauna) of the Barents Sea was investigated on nine different cruises in 1982-1988. Each cruise lasted from two to five weeks. Sampling techniques were based on scuba diving. The abundant sympagic organisms were the polar cod (Boreogadus saida) and the three amphipods Apherusa glacialis, Onisimus sp. and Gammarus wilkitzkii. Mean biomass-values (wet weight) of the invertebrate sympagic fauna ranged from 0 to 2 g/m2. Values above 0.001 g/m2 were not recorded in five of the nine cruises. This is orders of magnitude lower than mean values recorded in multi-year ice north of Svalbard and in the Fram Strait where values between 1-10g/m2 are quite common. Apherusa glacialis seemed to have the best spreading capacity of the three most conspicuous amphipods. Gammarus wilkitzkii was most dependent on a passive transport with the ice. Sympagic amphipods play an important part in a food chain from microalgae to polar cod and marine birds in areas covered with ice, especially in areas with multi-year ice. Article in Journal/Newspaper Barents Sea Boreogadus saida Fram Strait Gammarus wilkitzkii polar cod Polar Research Svalbard Polar Research (E-Journal) Barents Sea Svalbard Polar Research 10 1 289 294 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
The sympagic fauna (= ice fauna) of the Barents Sea was investigated on nine different cruises in 1982-1988. Each cruise lasted from two to five weeks. Sampling techniques were based on scuba diving. The abundant sympagic organisms were the polar cod (Boreogadus saida) and the three amphipods Apherusa glacialis, Onisimus sp. and Gammarus wilkitzkii. Mean biomass-values (wet weight) of the invertebrate sympagic fauna ranged from 0 to 2 g/m2. Values above 0.001 g/m2 were not recorded in five of the nine cruises. This is orders of magnitude lower than mean values recorded in multi-year ice north of Svalbard and in the Fram Strait where values between 1-10g/m2 are quite common. Apherusa glacialis seemed to have the best spreading capacity of the three most conspicuous amphipods. Gammarus wilkitzkii was most dependent on a passive transport with the ice. Sympagic amphipods play an important part in a food chain from microalgae to polar cod and marine birds in areas covered with ice, especially in areas with multi-year ice. |
format |
Article in Journal/Newspaper |
author |
Lønne, Ole J. Gulllksen, Bjørn |
spellingShingle |
Lønne, Ole J. Gulllksen, Bjørn Source, density and composition of sympagic fauna in the Barents Sea |
author_facet |
Lønne, Ole J. Gulllksen, Bjørn |
author_sort |
Lønne, Ole J. |
title |
Source, density and composition of sympagic fauna in the Barents Sea |
title_short |
Source, density and composition of sympagic fauna in the Barents Sea |
title_full |
Source, density and composition of sympagic fauna in the Barents Sea |
title_fullStr |
Source, density and composition of sympagic fauna in the Barents Sea |
title_full_unstemmed |
Source, density and composition of sympagic fauna in the Barents Sea |
title_sort |
source, density and composition of sympagic fauna in the barents sea |
publisher |
Norwegian Polar Institute |
publishDate |
1991 |
url |
https://polarresearch.net/index.php/polar/article/view/2318 https://doi.org/10.3402/polar.v10i1.6747 |
geographic |
Barents Sea Svalbard |
geographic_facet |
Barents Sea Svalbard |
genre |
Barents Sea Boreogadus saida Fram Strait Gammarus wilkitzkii polar cod Polar Research Svalbard |
genre_facet |
Barents Sea Boreogadus saida Fram Strait Gammarus wilkitzkii polar cod Polar Research Svalbard |
op_source |
Polar Research; Vol. 10 No. 1: Special issue: Proceedings of the Pro Mare Symposium on Polar Marine Ecology. Part 1; 289-294 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2318/5568 https://polarresearch.net/index.php/polar/article/view/2318 doi:10.3402/polar.v10i1.6747 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v10i1.6747 |
container_title |
Polar Research |
container_volume |
10 |
container_issue |
1 |
container_start_page |
289 |
op_container_end_page |
294 |
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1766369832948727808 |