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://doi.org/10.7557/3.2707 https://doaj.org/article/155fdd8dbe804702a6972b346c0a8eac |
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ftdoajarticles:oai:doaj.org/article:155fdd8dbe804702a6972b346c0a8eac 2023-05-15T15:36:07+02:00 Estimates of the abundance of minke whales ( Balaenoptera acutorostrata ) from Faroese and Icelandic NASS shipboard surveys Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson Geneviève Desportes Dorete Bloch 2009-09-01T00:00:00Z https://doi.org/10.7557/3.2707 https://doaj.org/article/155fdd8dbe804702a6972b346c0a8eac EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2707 https://doaj.org/article/155fdd8dbe804702a6972b346c0a8eac NAMMCO Scientific Publications, Vol 7, Iss 0, Pp 81-93 (2009) minke whales Balaenoptera physalus surveys abundance density Ecology QH540-549.5 article 2009 ftdoajarticles https://doi.org/10.7557/3.2707 2022-12-31T12:22:31Z 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 Directory of Open Access Journals: DOAJ Articles NAMMCO Scientific Publications 7 81 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
minke whales Balaenoptera physalus surveys abundance density Ecology QH540-549.5 |
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minke whales Balaenoptera physalus surveys abundance density Ecology QH540-549.5 Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson Geneviève Desportes Dorete Bloch 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 Ecology QH540-549.5 |
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 |
Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson Geneviève Desportes Dorete Bloch |
author_facet |
Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson Geneviève Desportes Dorete Bloch |
author_sort |
Daniel G Pike |
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://doi.org/10.7557/3.2707 https://doaj.org/article/155fdd8dbe804702a6972b346c0a8eac |
genre |
Balaenoptera acutorostrata Balaenoptera physalus North Atlantic |
genre_facet |
Balaenoptera acutorostrata Balaenoptera physalus North Atlantic |
op_source |
NAMMCO Scientific Publications, Vol 7, Iss 0, Pp 81-93 (2009) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2707 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2707 https://doaj.org/article/155fdd8dbe804702a6972b346c0a8eac |
op_doi |
https://doi.org/10.7557/3.2707 |
container_title |
NAMMCO Scientific Publications |
container_volume |
7 |
container_start_page |
81 |
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1766366462999527424 |