Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake
The at-sea distribution of seabirds and marine mammals in the eastern Barents Sea was determined using standardized transect counts during three cruises of RV "Dalnie Zelentsy" (Murmansk) in late summer 1991, 1992 and 1993. Totals of 32,268 seabirds, 485 pinnipeds, 25 cetaceans and 4 polar...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/189452 2023-05-15T15:36:08+02:00 Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake Joiris, Claude Tahon, Jacques Holsbeek, Ludo Vancauwenberghe, Maaike 1996 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/189452 en eng uri/info:scp/0029667163 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/189452 Polar biology, 16 (4 Sciences bio-médicales et agricoles info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 1996 ftunivbruxelles 2022-06-12T20:38:32Z The at-sea distribution of seabirds and marine mammals in the eastern Barents Sea was determined using standardized transect counts during three cruises of RV "Dalnie Zelentsy" (Murmansk) in late summer 1991, 1992 and 1993. Totals of 32,268 seabirds, 485 pinnipeds, 25 cetaceans and 4 polar bears were counted during 554 half-hour counts. Numbers were converted into densities, total biomass and calculated daily food intake. Mean total food intake in kg fresh weight/km2.day was 3.1 for the entire zone and all years; fish eaters dominated the whole region, with an intake of 1.3 (mainly Brünnich's guillemot, Uria lomvia, and harp seal, Phoca groenlandica), followed by zooplankton eaters (0.85, mainly fulmar, Fulmarus glacialis) and mixed zooplankton and fish feeders (0.75, mainly minke whale, Balaenoptera acutorostrata, and kittiwake, Rissa tridactyla). Year-to-year variations were of little importance, while geographic differences were obvious between Norwegian coastal, Atlantic and Barents Sea water masses, both quantitatively and qualitatively (relative importance of main diets). Within each zone, a strong geographic heterogeneity was noted, with high local concentrations at fronts between water masses and at ice edges. © Springer-Verlag 1996. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Balaenoptera acutorostrata Barents Sea brünnich's guillemot Fulmarus glacialis Harp Seal minke whale Phoca groenlandica Polar Biology rissa tridactyla Uria lomvia uria DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Barents Sea Fulmar ENVELOPE(-46.016,-46.016,-60.616,-60.616) Murmansk Zelentsy ENVELOPE(33.700,33.700,69.283,69.283) |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences bio-médicales et agricoles |
spellingShingle |
Sciences bio-médicales et agricoles Joiris, Claude Tahon, Jacques Holsbeek, Ludo Vancauwenberghe, Maaike Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
topic_facet |
Sciences bio-médicales et agricoles |
description |
The at-sea distribution of seabirds and marine mammals in the eastern Barents Sea was determined using standardized transect counts during three cruises of RV "Dalnie Zelentsy" (Murmansk) in late summer 1991, 1992 and 1993. Totals of 32,268 seabirds, 485 pinnipeds, 25 cetaceans and 4 polar bears were counted during 554 half-hour counts. Numbers were converted into densities, total biomass and calculated daily food intake. Mean total food intake in kg fresh weight/km2.day was 3.1 for the entire zone and all years; fish eaters dominated the whole region, with an intake of 1.3 (mainly Brünnich's guillemot, Uria lomvia, and harp seal, Phoca groenlandica), followed by zooplankton eaters (0.85, mainly fulmar, Fulmarus glacialis) and mixed zooplankton and fish feeders (0.75, mainly minke whale, Balaenoptera acutorostrata, and kittiwake, Rissa tridactyla). Year-to-year variations were of little importance, while geographic differences were obvious between Norwegian coastal, Atlantic and Barents Sea water masses, both quantitatively and qualitatively (relative importance of main diets). Within each zone, a strong geographic heterogeneity was noted, with high local concentrations at fronts between water masses and at ice edges. © Springer-Verlag 1996. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Joiris, Claude Tahon, Jacques Holsbeek, Ludo Vancauwenberghe, Maaike |
author_facet |
Joiris, Claude Tahon, Jacques Holsbeek, Ludo Vancauwenberghe, Maaike |
author_sort |
Joiris, Claude |
title |
Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
title_short |
Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
title_full |
Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
title_fullStr |
Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
title_full_unstemmed |
Seabirds and marine mammals in the eastern Barents Sea: Late summer at-sea distribution and calculated food intake |
title_sort |
seabirds and marine mammals in the eastern barents sea: late summer at-sea distribution and calculated food intake |
publishDate |
1996 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/189452 |
long_lat |
ENVELOPE(-46.016,-46.016,-60.616,-60.616) ENVELOPE(33.700,33.700,69.283,69.283) |
geographic |
Barents Sea Fulmar Murmansk Zelentsy |
geographic_facet |
Barents Sea Fulmar Murmansk Zelentsy |
genre |
Balaenoptera acutorostrata Barents Sea brünnich's guillemot Fulmarus glacialis Harp Seal minke whale Phoca groenlandica Polar Biology rissa tridactyla Uria lomvia uria |
genre_facet |
Balaenoptera acutorostrata Barents Sea brünnich's guillemot Fulmarus glacialis Harp Seal minke whale Phoca groenlandica Polar Biology rissa tridactyla Uria lomvia uria |
op_source |
Polar biology, 16 (4 |
op_relation |
uri/info:scp/0029667163 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/189452 |
_version_ |
1766366477082951680 |