Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance
This paper is based on 748 observations of belugas (Delphinapterus leucas) and 382 observations of baleen whales in the Russian Arctic, the majority of the data provided by aerial reconnaissance of sea ice (ARSI). Although the data are not suitable for the estimation of the number and density of the...
Published in: | NAMMCO Scientific Publications |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Septentrio Academic Publishing
2002
|
Subjects: | |
Online Access: | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838 https://doi.org/10.7557/3.2838 |
id |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2838 |
---|---|
record_format |
openpolar |
spelling |
ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2838 2023-05-15T13:24:40+02:00 Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance Belikov, Stanislav E Boltunov, Andrei N 2002-07-21 application/pdf https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838 https://doi.org/10.7557/3.2838 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838/2691 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838 doi:10.7557/3.2838 Copyright (c) 2002 Stanislav E Belikov, Andrei N Boltunov http://creativecommons.org/licenses/by/3.0/ CC-BY NAMMCO Scientific Publications; Vol 4: Belugas in the North Atlantic and the Russian Arctic; 69-86 2309-2491 1560-2206 10.7557/3.4 belugas Delphinapterus leucas distribution migration sea-ice baleen whales narwhal Monodon monoceros info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2002 ftunitroemsoe https://doi.org/10.7557/3.2838 https://doi.org/10.7557/3.4 2021-08-16T16:40:14Z This paper is based on 748 observations of belugas (Delphinapterus leucas) and 382 observations of baleen whales in the Russian Arctic, the majority of the data provided by aerial reconnaissance of sea ice (ARSI). Although the data are not suitable for the estimation of the number and density of the animals, they represent a multi-year (1958-1995) range of observations to update our knowledge on the seasonal distribution and migrations of the species. Belugas inhabit not only shelf waters but also the zone of the shelf slope and the abyssal zone of the Arctic Ocean, where the animals appear mostly in summer. In winter belugas were observed only in the Barents Sea. In June-August, the frequency of beluga observations was highest in the Laptev Sea, which has previously been believed to have considerably lower numbers of beluga than the Kara and Barents seas. Patterns of seasonal distribution and ice cover suggest the existence of a natural border preventing or reducing population exchange between belugas inhabiting the western and eastern parts of the Russian Arctic. A brief review of available data on distribution of the narwhal (Monodon monoceros) in the Russian Arctic is also given. Two species of baleen whales were frequently seen in the Russian Arctic: the bowhead whale (Balaena mysticetus), and the grey whale (Eschrichtius robustus). The majority of such observations were made in the southeastern part of the East-Siberian Sea and the southern part of the Chukchi Sea. In the Bering Sea baleen whales were usually seen near the Chukotka Peninsula, in Anadyr Bay and southeast of it. Whales were usually seen in ice-free water: observations of whales among rarefied ice and near the ice edge were rare. There were considerable annual and seasonal variations in distribution and migrations of baleen whales in the region, probably caused mainly by the dynamics of ice conditions. Article in Journal/Newspaper Anadyr Anadyr' Arctic Arctic Arctic Ocean Balaena mysticetus baleen whales Barents Sea Beluga Beluga* Bering Sea bowhead whale Chukchi Chukchi Sea Chukotka Chukotka Peninsula Delphinapterus leucas East Siberian Sea laptev Laptev Sea Monodon monoceros narwhal* Sea ice University of Tromsø: Septentrio Academic Publishing Anadyr ENVELOPE(177.510,177.510,64.734,64.734) Anadyr’ ENVELOPE(176.233,176.233,64.882,64.882) Arctic Arctic Ocean Barents Sea Bering Sea Chukchi Sea East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Laptev Sea NAMMCO Scientific Publications 4 69 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
belugas Delphinapterus leucas distribution migration sea-ice baleen whales narwhal Monodon monoceros |
spellingShingle |
belugas Delphinapterus leucas distribution migration sea-ice baleen whales narwhal Monodon monoceros Belikov, Stanislav E Boltunov, Andrei N Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
topic_facet |
belugas Delphinapterus leucas distribution migration sea-ice baleen whales narwhal Monodon monoceros |
description |
This paper is based on 748 observations of belugas (Delphinapterus leucas) and 382 observations of baleen whales in the Russian Arctic, the majority of the data provided by aerial reconnaissance of sea ice (ARSI). Although the data are not suitable for the estimation of the number and density of the animals, they represent a multi-year (1958-1995) range of observations to update our knowledge on the seasonal distribution and migrations of the species. Belugas inhabit not only shelf waters but also the zone of the shelf slope and the abyssal zone of the Arctic Ocean, where the animals appear mostly in summer. In winter belugas were observed only in the Barents Sea. In June-August, the frequency of beluga observations was highest in the Laptev Sea, which has previously been believed to have considerably lower numbers of beluga than the Kara and Barents seas. Patterns of seasonal distribution and ice cover suggest the existence of a natural border preventing or reducing population exchange between belugas inhabiting the western and eastern parts of the Russian Arctic. A brief review of available data on distribution of the narwhal (Monodon monoceros) in the Russian Arctic is also given. Two species of baleen whales were frequently seen in the Russian Arctic: the bowhead whale (Balaena mysticetus), and the grey whale (Eschrichtius robustus). The majority of such observations were made in the southeastern part of the East-Siberian Sea and the southern part of the Chukchi Sea. In the Bering Sea baleen whales were usually seen near the Chukotka Peninsula, in Anadyr Bay and southeast of it. Whales were usually seen in ice-free water: observations of whales among rarefied ice and near the ice edge were rare. There were considerable annual and seasonal variations in distribution and migrations of baleen whales in the region, probably caused mainly by the dynamics of ice conditions. |
format |
Article in Journal/Newspaper |
author |
Belikov, Stanislav E Boltunov, Andrei N |
author_facet |
Belikov, Stanislav E Boltunov, Andrei N |
author_sort |
Belikov, Stanislav E |
title |
Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
title_short |
Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
title_full |
Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
title_fullStr |
Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
title_full_unstemmed |
Distribution and migrations of cetaceans in the Russian Arctic according to observations from aerial ice reconnaissance |
title_sort |
distribution and migrations of cetaceans in the russian arctic according to observations from aerial ice reconnaissance |
publisher |
Septentrio Academic Publishing |
publishDate |
2002 |
url |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838 https://doi.org/10.7557/3.2838 |
long_lat |
ENVELOPE(177.510,177.510,64.734,64.734) ENVELOPE(176.233,176.233,64.882,64.882) ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Anadyr Anadyr’ Arctic Arctic Ocean Barents Sea Bering Sea Chukchi Sea East Siberian Sea Laptev Sea |
geographic_facet |
Anadyr Anadyr’ Arctic Arctic Ocean Barents Sea Bering Sea Chukchi Sea East Siberian Sea Laptev Sea |
genre |
Anadyr Anadyr' Arctic Arctic Arctic Ocean Balaena mysticetus baleen whales Barents Sea Beluga Beluga* Bering Sea bowhead whale Chukchi Chukchi Sea Chukotka Chukotka Peninsula Delphinapterus leucas East Siberian Sea laptev Laptev Sea Monodon monoceros narwhal* Sea ice |
genre_facet |
Anadyr Anadyr' Arctic Arctic Arctic Ocean Balaena mysticetus baleen whales Barents Sea Beluga Beluga* Bering Sea bowhead whale Chukchi Chukchi Sea Chukotka Chukotka Peninsula Delphinapterus leucas East Siberian Sea laptev Laptev Sea Monodon monoceros narwhal* Sea ice |
op_source |
NAMMCO Scientific Publications; Vol 4: Belugas in the North Atlantic and the Russian Arctic; 69-86 2309-2491 1560-2206 10.7557/3.4 |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838/2691 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2838 doi:10.7557/3.2838 |
op_rights |
Copyright (c) 2002 Stanislav E Belikov, Andrei N Boltunov http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/3.2838 https://doi.org/10.7557/3.4 |
container_title |
NAMMCO Scientific Publications |
container_volume |
4 |
container_start_page |
69 |
_version_ |
1766380777962995712 |