Summer distribution of seabirds in the North-East Water polynya, Greenland
The distribution at sea of seabirds was studied in the North-East Water (NEW) polynya, Greenland, during transect counts in the summers of 1991, 1992 and 1993 on board the ice-breaking RVs Polarstern and Polar Sea. Data collected within the polynya 'box' (78-82°N; 5-18°W) concern observati...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/163996 2023-05-15T13:16:23+02:00 Summer distribution of seabirds in the North-East Water polynya, Greenland Joiris, Claude Kampp, Kaj Tahon, Jacques Kristensen, Reinhardt Møbjerg 1997-10 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/163996 https://dipot.ulb.ac.be/dspace/bitstream/2013/163996/1/Elsevier_147626.pdf en eng uri/info:doi/10.1016/S0924-7963(96)00107-8 uri/info:pii/S0924796396001078 uri/info:scp/0030786087 https://dipot.ulb.ac.be/dspace/bitstream/2013/163996/1/Elsevier_147626.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/163996 1 full-text file(s): info:eu-repo/semantics/restrictedAccess Journal of marine systems, 13 (1-4 Océanographie biologique Océanographie physique et chimique Evolution des espèces Ecologie Arctic Greenland Seabirds info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 1997 ftunivbruxelles 2022-06-12T21:25:31Z The distribution at sea of seabirds was studied in the North-East Water (NEW) polynya, Greenland, during transect counts in the summers of 1991, 1992 and 1993 on board the ice-breaking RVs Polarstern and Polar Sea. Data collected within the polynya 'box' (78-82°N; 5-18°W) concern observations of 8000 birds counted during 1350 half-hour counts. Distribution is presented as density (N/km2) and calculated daily food intake. Five bird species were selected for discussion, representing more than 95% of the total numbers encountered: Fulmar (Fulmarus glacialis), Ivory Gull (Pagophila eburnea), Kittiwake (Rissa tridactyla), Glaucous Gull (Larus hyperboreus) and Ross's Gull (Rhodostethia rosea). For these species, densities are comparable in the NE Greenland polynya and in other European Arctic seas. The main difference is the absence in NEW of the species playing the main role in Arctic seas: Brunnich's Guillemot (Uria lomvia) and Little Auk (Alle alle). In the absence of fish-eating birds and of birds consuming zooplankton in the water column, the NEW polynya ecosystem is thus dominated by surface feeders and, closer to the coast, by benthic feeders like eiders, Somateria mollissima and S. spectabilis, and walrus, Odobenus rosmarus. The density and daily food intake for all seabirds are one order of magnitude lower in the polynya than in the Arctic seas. The distribution and abundance of seabirds in the NEW polynya seems to reflect a very low density of pelagic fish and zooplankton in the water column, while zooplankton must be present at 'normal' concentrations in the upper layer. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Alle alle Arctic Fulmarus glacialis Glaucous Gull Greenland ivory gull Larus hyperboreus little auk Odobenus rosmarus Pagophila eburnea rissa tridactyla Somateria mollissima Uria lomvia Zooplankton uria walrus* DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Arctic Fulmar ENVELOPE(-46.016,-46.016,-60.616,-60.616) Greenland |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Océanographie biologique Océanographie physique et chimique Evolution des espèces Ecologie Arctic Greenland Seabirds |
spellingShingle |
Océanographie biologique Océanographie physique et chimique Evolution des espèces Ecologie Arctic Greenland Seabirds Joiris, Claude Kampp, Kaj Tahon, Jacques Kristensen, Reinhardt Møbjerg Summer distribution of seabirds in the North-East Water polynya, Greenland |
topic_facet |
Océanographie biologique Océanographie physique et chimique Evolution des espèces Ecologie Arctic Greenland Seabirds |
description |
The distribution at sea of seabirds was studied in the North-East Water (NEW) polynya, Greenland, during transect counts in the summers of 1991, 1992 and 1993 on board the ice-breaking RVs Polarstern and Polar Sea. Data collected within the polynya 'box' (78-82°N; 5-18°W) concern observations of 8000 birds counted during 1350 half-hour counts. Distribution is presented as density (N/km2) and calculated daily food intake. Five bird species were selected for discussion, representing more than 95% of the total numbers encountered: Fulmar (Fulmarus glacialis), Ivory Gull (Pagophila eburnea), Kittiwake (Rissa tridactyla), Glaucous Gull (Larus hyperboreus) and Ross's Gull (Rhodostethia rosea). For these species, densities are comparable in the NE Greenland polynya and in other European Arctic seas. The main difference is the absence in NEW of the species playing the main role in Arctic seas: Brunnich's Guillemot (Uria lomvia) and Little Auk (Alle alle). In the absence of fish-eating birds and of birds consuming zooplankton in the water column, the NEW polynya ecosystem is thus dominated by surface feeders and, closer to the coast, by benthic feeders like eiders, Somateria mollissima and S. spectabilis, and walrus, Odobenus rosmarus. The density and daily food intake for all seabirds are one order of magnitude lower in the polynya than in the Arctic seas. The distribution and abundance of seabirds in the NEW polynya seems to reflect a very low density of pelagic fish and zooplankton in the water column, while zooplankton must be present at 'normal' concentrations in the upper layer. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Joiris, Claude Kampp, Kaj Tahon, Jacques Kristensen, Reinhardt Møbjerg |
author_facet |
Joiris, Claude Kampp, Kaj Tahon, Jacques Kristensen, Reinhardt Møbjerg |
author_sort |
Joiris, Claude |
title |
Summer distribution of seabirds in the North-East Water polynya, Greenland |
title_short |
Summer distribution of seabirds in the North-East Water polynya, Greenland |
title_full |
Summer distribution of seabirds in the North-East Water polynya, Greenland |
title_fullStr |
Summer distribution of seabirds in the North-East Water polynya, Greenland |
title_full_unstemmed |
Summer distribution of seabirds in the North-East Water polynya, Greenland |
title_sort |
summer distribution of seabirds in the north-east water polynya, greenland |
publishDate |
1997 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/163996 https://dipot.ulb.ac.be/dspace/bitstream/2013/163996/1/Elsevier_147626.pdf |
long_lat |
ENVELOPE(-46.016,-46.016,-60.616,-60.616) |
geographic |
Arctic Fulmar Greenland |
geographic_facet |
Arctic Fulmar Greenland |
genre |
Alle alle Arctic Fulmarus glacialis Glaucous Gull Greenland ivory gull Larus hyperboreus little auk Odobenus rosmarus Pagophila eburnea rissa tridactyla Somateria mollissima Uria lomvia Zooplankton uria walrus* |
genre_facet |
Alle alle Arctic Fulmarus glacialis Glaucous Gull Greenland ivory gull Larus hyperboreus little auk Odobenus rosmarus Pagophila eburnea rissa tridactyla Somateria mollissima Uria lomvia Zooplankton uria walrus* |
op_source |
Journal of marine systems, 13 (1-4 |
op_relation |
uri/info:doi/10.1016/S0924-7963(96)00107-8 uri/info:pii/S0924796396001078 uri/info:scp/0030786087 https://dipot.ulb.ac.be/dspace/bitstream/2013/163996/1/Elsevier_147626.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/163996 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/restrictedAccess |
_version_ |
1766273777322164224 |