Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys
North Atlantic Sightings Surveys for cetaceans were carried out Northeast and Central Atlantic in 1987, 1989, 1995 and 2001. Here we provide estimates of density and abundance for minke whales from the Faroese and Icelandic ship surveys. The estimates are not corrected for availability or perception...
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Septentrio Academic Publishing
2009
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Online Access: | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 https://doi.org/10.7557/3.2707 |
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2707 2023-05-15T15:36:07+02:00 Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys Pike, Daniel G Gunnlaugsson, Thorvaldur Víkingsson, Gísli A Desportes, Geneviève Bloch, Dorete 2009-09-01 application/pdf https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 https://doi.org/10.7557/3.2707 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707/2557 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 doi:10.7557/3.2707 Copyright (c) 2009 Daniel G Pike, Thorvaldur Gunnlaugsson, Gísli A Víkingsson, Geneviève Desportes, Dorete Bloch 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; 81-93 2309-2491 1560-2206 10.7557/3.7 minke whales Balaenoptera physalus surveys abundance density info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2009 ftunitroemsoe https://doi.org/10.7557/3.2707 https://doi.org/10.7557/3.7 2021-08-16T16:37:46Z North Atlantic Sightings Surveys for cetaceans were carried out Northeast and Central Atlantic in 1987, 1989, 1995 and 2001. Here we provide estimates of density and abundance for minke whales from the Faroese and Icelandic ship surveys. The estimates are not corrected for availability or perception biases. Double platform data collected in 2001 indicates that perception bias is likely considerable for this species. However comparison of corrected estimates of densityfrom aerial surveys with a ship survey estimate from the same area suggests that ship surveys can be nearly unbiased under optimal survey conditions with high searching effort. There were some regional changes in density over the period but no overall changes in density and abundance. Given the recent catch history for minke whales in this area, we would not expect to see changes in abundance due to exploitation that would be detectable with these surveys. Article in Journal/Newspaper Balaenoptera acutorostrata Balaenoptera physalus North Atlantic University of Tromsø: Septentrio Academic Publishing NAMMCO Scientific Publications 7 81 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
minke whales Balaenoptera physalus surveys abundance density |
spellingShingle |
minke whales Balaenoptera physalus surveys abundance density Pike, Daniel G Gunnlaugsson, Thorvaldur Víkingsson, Gísli A Desportes, Geneviève Bloch, Dorete Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
topic_facet |
minke whales Balaenoptera physalus surveys abundance density |
description |
North Atlantic Sightings Surveys for cetaceans were carried out Northeast and Central Atlantic in 1987, 1989, 1995 and 2001. Here we provide estimates of density and abundance for minke whales from the Faroese and Icelandic ship surveys. The estimates are not corrected for availability or perception biases. Double platform data collected in 2001 indicates that perception bias is likely considerable for this species. However comparison of corrected estimates of densityfrom aerial surveys with a ship survey estimate from the same area suggests that ship surveys can be nearly unbiased under optimal survey conditions with high searching effort. There were some regional changes in density over the period but no overall changes in density and abundance. Given the recent catch history for minke whales in this area, we would not expect to see changes in abundance due to exploitation that would be detectable with these surveys. |
format |
Article in Journal/Newspaper |
author |
Pike, Daniel G Gunnlaugsson, Thorvaldur Víkingsson, Gísli A Desportes, Geneviève Bloch, Dorete |
author_facet |
Pike, Daniel G Gunnlaugsson, Thorvaldur Víkingsson, Gísli A Desportes, Geneviève Bloch, Dorete |
author_sort |
Pike, Daniel G |
title |
Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
title_short |
Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
title_full |
Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
title_fullStr |
Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
title_full_unstemmed |
Estimates of the abundance of minke whales (Balaenoptera acutorostrata) from Faroese and Icelandic NASS shipboard surveys |
title_sort |
estimates of the abundance of minke whales (balaenoptera acutorostrata) from faroese and icelandic nass shipboard surveys |
publisher |
Septentrio Academic Publishing |
publishDate |
2009 |
url |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 https://doi.org/10.7557/3.2707 |
genre |
Balaenoptera acutorostrata Balaenoptera physalus North Atlantic |
genre_facet |
Balaenoptera acutorostrata Balaenoptera physalus North Atlantic |
op_source |
NAMMCO Scientific Publications; Vol 7: North Atlantic Sightings Surveys: Counting whales in the North Atlantic, 1987-2001; 81-93 2309-2491 1560-2206 10.7557/3.7 |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707/2557 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 doi:10.7557/3.2707 |
op_rights |
Copyright (c) 2009 Daniel G Pike, Thorvaldur Gunnlaugsson, Gísli A Víkingsson, Geneviève Desportes, Dorete Bloch http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/3.2707 https://doi.org/10.7557/3.7 |
container_title |
NAMMCO Scientific Publications |
container_volume |
7 |
container_start_page |
81 |
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1766366458055491584 |