Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice
The at-sea distribution of top predators, seabirds and marine mammals, was determined in the high Arctic pack ice on board the icebreaker RV Polarstern in July to September 2014. In total, 1,620 transect counts were realised, lasting 30 min each. The five most numerous seabird species represented 74...
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fthindawi:oai:hindawi.com:10.1155/2016/1982534 2023-05-15T13:16:19+02:00 Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice Claude R. Joiris Karin Boos Diederik D’Hert Dominik A. Nachtsheim 2016 https://doi.org/10.1155/2016/1982534 en eng Scientifica https://doi.org/10.1155/2016/1982534 Copyright © 2016 Claude R. Joiris et al. Marine Biology Research Article 2016 fthindawi https://doi.org/10.1155/2016/1982534 2019-05-26T07:17:30Z The at-sea distribution of top predators, seabirds and marine mammals, was determined in the high Arctic pack ice on board the icebreaker RV Polarstern in July to September 2014. In total, 1,620 transect counts were realised, lasting 30 min each. The five most numerous seabird species represented 74% of the total of 15,150 individuals registered: kittiwake Rissa tridactyla, fulmar Fulmarus glacialis, puffin Fratercula arctica, Ross’s gull Rhodostethia rosea, and little auk Alle alle. Eight cetacean species were tallied for a total of 330 individuals, mainly white-beaked dolphin Lagenorhynchus albirostris and fin whale Balaenoptera physalus. Five pinniped species were represented by a total of 55 individuals and the polar bear Ursus maritimus was represented by 12 individuals. Four main geographical zones were identified: from Tromsø to the outer marginal ice zone (OMIZ), the Arctic pack ice (close pack ice, CPI), the end of Lomonosov Ridge off Siberia, and the route off Siberia and northern Norway. Important differences were detected between zones, both in species composition and in individual abundance. Low numbers of species and high proportion of individuals for some of them can be considered to reflect very low biodiversity. Numbers encountered in zones 2 to 4 were very low in comparison with other European Arctic seas. The observed differences showed strong patterns. Article in Journal/Newspaper Alle alle Arctic Balaenoptera physalus Fin whale fratercula Fratercula arctica Fulmarus glacialis Lagenorhynchus albirostris little auk Lomonosov Ridge Northern Norway rissa tridactyla Tromsø Ursus maritimus White-beaked dolphin Siberia Hindawi Publishing Corporation Arctic Norway Tromsø Fulmar ENVELOPE(-46.016,-46.016,-60.616,-60.616) Scientifica 2016 1 14 |
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Open Polar |
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Hindawi Publishing Corporation |
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fthindawi |
language |
English |
topic |
Marine Biology |
spellingShingle |
Marine Biology Claude R. Joiris Karin Boos Diederik D’Hert Dominik A. Nachtsheim Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
topic_facet |
Marine Biology |
description |
The at-sea distribution of top predators, seabirds and marine mammals, was determined in the high Arctic pack ice on board the icebreaker RV Polarstern in July to September 2014. In total, 1,620 transect counts were realised, lasting 30 min each. The five most numerous seabird species represented 74% of the total of 15,150 individuals registered: kittiwake Rissa tridactyla, fulmar Fulmarus glacialis, puffin Fratercula arctica, Ross’s gull Rhodostethia rosea, and little auk Alle alle. Eight cetacean species were tallied for a total of 330 individuals, mainly white-beaked dolphin Lagenorhynchus albirostris and fin whale Balaenoptera physalus. Five pinniped species were represented by a total of 55 individuals and the polar bear Ursus maritimus was represented by 12 individuals. Four main geographical zones were identified: from Tromsø to the outer marginal ice zone (OMIZ), the Arctic pack ice (close pack ice, CPI), the end of Lomonosov Ridge off Siberia, and the route off Siberia and northern Norway. Important differences were detected between zones, both in species composition and in individual abundance. Low numbers of species and high proportion of individuals for some of them can be considered to reflect very low biodiversity. Numbers encountered in zones 2 to 4 were very low in comparison with other European Arctic seas. The observed differences showed strong patterns. |
format |
Article in Journal/Newspaper |
author |
Claude R. Joiris Karin Boos Diederik D’Hert Dominik A. Nachtsheim |
author_facet |
Claude R. Joiris Karin Boos Diederik D’Hert Dominik A. Nachtsheim |
author_sort |
Claude R. Joiris |
title |
Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
title_short |
Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
title_full |
Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
title_fullStr |
Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
title_full_unstemmed |
Low Density of Top Predators (Seabirds and Marine Mammals) in the High Arctic Pack Ice |
title_sort |
low density of top predators (seabirds and marine mammals) in the high arctic pack ice |
publisher |
Scientifica |
publishDate |
2016 |
url |
https://doi.org/10.1155/2016/1982534 |
long_lat |
ENVELOPE(-46.016,-46.016,-60.616,-60.616) |
geographic |
Arctic Norway Tromsø Fulmar |
geographic_facet |
Arctic Norway Tromsø Fulmar |
genre |
Alle alle Arctic Balaenoptera physalus Fin whale fratercula Fratercula arctica Fulmarus glacialis Lagenorhynchus albirostris little auk Lomonosov Ridge Northern Norway rissa tridactyla Tromsø Ursus maritimus White-beaked dolphin Siberia |
genre_facet |
Alle alle Arctic Balaenoptera physalus Fin whale fratercula Fratercula arctica Fulmarus glacialis Lagenorhynchus albirostris little auk Lomonosov Ridge Northern Norway rissa tridactyla Tromsø Ursus maritimus White-beaked dolphin Siberia |
op_relation |
https://doi.org/10.1155/2016/1982534 |
op_rights |
Copyright © 2016 Claude R. Joiris et al. |
op_doi |
https://doi.org/10.1155/2016/1982534 |
container_title |
Scientifica |
container_volume |
2016 |
container_start_page |
1 |
op_container_end_page |
14 |
_version_ |
1766273479551746048 |