A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic
The distribution and abundance of blue whales (Balaenoptera musculus) was assessed from ship surveys conducted in the Central and Northeast Atlantic in 1987, 1989, 1995 and 2001. Blue whales were most commonly sighted off western Iceland, and to a lesser extent northeast of Iceland. They were very r...
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Language: | English |
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2009
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Online Access: | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703 https://doi.org/10.7557/3.2703 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2703 2023-05-15T15:36:18+02:00 A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic Pike, Daniel G Víkingsson, Gísli A Gunnlaugsson, Thorvaldur Øien, Nils 2009-09-01 application/pdf https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703 https://doi.org/10.7557/3.2703 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703/2552 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703 doi:10.7557/3.2703 Copyright (c) 2009 Daniel G Pike, Gísli A Víkingsson, Thorvaldur Gunnlaugsson, Nils Øien http://creativecommons.org/licenses/by/3.0/ CC-BY NAMMCO Scientific Publications; Vol 7: North Atlantic Sightings Surveys: Counting whales in the North Atlantic, 1987-2001; 19-29 2309-2491 1560-2206 10.7557/3.7 Balaenoptera musculus blue whales abundance distribution surveys info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2009 ftunitroemsoe https://doi.org/10.7557/3.2703 https://doi.org/10.7557/3.7 2021-08-16T16:37:46Z The distribution and abundance of blue whales (Balaenoptera musculus) was assessed from ship surveys conducted in the Central and Northeast Atlantic in 1987, 1989, 1995 and 2001. Blue whales were most commonly sighted off western Iceland, and to a lesser extent northeast of Iceland. They were very rare or absent in the Northeast Atlantic. Sightings were combined over all surveys to estimate the detection function using standard line transect methodology, with the addition of a covariate to account for differences between surveys. Total abundance was highest in 1995 (979, 95% CI 137-2,542) and lowest in 1987 (222, 95% CI 115-440). Uncertainty in species identity had little effect on estimates of abundance. There was a significant positive trend in abundance northeast of Iceland and in the total survey area. Article in Journal/Newspaper Balaenoptera musculus Iceland North Atlantic Northeast Atlantic University of Tromsø: Septentrio Academic Publishing NAMMCO Scientific Publications 7 19 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
Balaenoptera musculus blue whales abundance distribution surveys |
spellingShingle |
Balaenoptera musculus blue whales abundance distribution surveys Pike, Daniel G Víkingsson, Gísli A Gunnlaugsson, Thorvaldur Øien, Nils A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
topic_facet |
Balaenoptera musculus blue whales abundance distribution surveys |
description |
The distribution and abundance of blue whales (Balaenoptera musculus) was assessed from ship surveys conducted in the Central and Northeast Atlantic in 1987, 1989, 1995 and 2001. Blue whales were most commonly sighted off western Iceland, and to a lesser extent northeast of Iceland. They were very rare or absent in the Northeast Atlantic. Sightings were combined over all surveys to estimate the detection function using standard line transect methodology, with the addition of a covariate to account for differences between surveys. Total abundance was highest in 1995 (979, 95% CI 137-2,542) and lowest in 1987 (222, 95% CI 115-440). Uncertainty in species identity had little effect on estimates of abundance. There was a significant positive trend in abundance northeast of Iceland and in the total survey area. |
format |
Article in Journal/Newspaper |
author |
Pike, Daniel G Víkingsson, Gísli A Gunnlaugsson, Thorvaldur Øien, Nils |
author_facet |
Pike, Daniel G Víkingsson, Gísli A Gunnlaugsson, Thorvaldur Øien, Nils |
author_sort |
Pike, Daniel G |
title |
A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
title_short |
A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
title_full |
A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
title_fullStr |
A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
title_full_unstemmed |
A note on the distribution and abundance of blue whales (Balaenoptera musculus) in the Central and Northeast North Atlantic |
title_sort |
note on the distribution and abundance of blue whales (balaenoptera musculus) in the central and northeast north atlantic |
publisher |
Septentrio Academic Publishing |
publishDate |
2009 |
url |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703 https://doi.org/10.7557/3.2703 |
genre |
Balaenoptera musculus Iceland North Atlantic Northeast Atlantic |
genre_facet |
Balaenoptera musculus Iceland North Atlantic Northeast Atlantic |
op_source |
NAMMCO Scientific Publications; Vol 7: North Atlantic Sightings Surveys: Counting whales in the North Atlantic, 1987-2001; 19-29 2309-2491 1560-2206 10.7557/3.7 |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703/2552 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2703 doi:10.7557/3.2703 |
op_rights |
Copyright (c) 2009 Daniel G Pike, Gísli A Víkingsson, Thorvaldur Gunnlaugsson, Nils Øien http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/3.2703 https://doi.org/10.7557/3.7 |
container_title |
NAMMCO Scientific Publications |
container_volume |
7 |
container_start_page |
19 |
_version_ |
1766366643402833920 |