Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors
We estimate the abundance of minke whales (Balaenoptera acutorostrata) from the Icelandic coastal shelf aerial surveys carried out as part of the 1987 and 2001 North Atlantic Sightings Surveys (NASS). In the case of the 1987 survey, the probability of detecting animals at distance zero (g(0)) is ver...
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Septentrio Academic Publishing
2009
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ftdoajarticles:oai:doaj.org/article:d9770cfc99fa420daa0568a4eca9fac2 2023-05-15T15:36:07+02:00 Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors David L Borchers Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson 2009-09-01T00:00:00Z https://doi.org/10.7557/3.2708 https://doaj.org/article/d9770cfc99fa420daa0568a4eca9fac2 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2708 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2708 https://doaj.org/article/d9770cfc99fa420daa0568a4eca9fac2 NAMMCO Scientific Publications, Vol 7, Iss 0, Pp 95-110 (2009) minke whales Balaenoptera physalus surveys abundance Ecology QH540-549.5 article 2009 ftdoajarticles https://doi.org/10.7557/3.2708 2022-12-31T05:50:06Z We estimate the abundance of minke whales (Balaenoptera acutorostrata) from the Icelandic coastal shelf aerial surveys carried out as part of the 1987 and 2001 North Atlantic Sightings Surveys (NASS). In the case of the 1987 survey, the probability of detecting animals at distance zero (g(0)) is very close to 1 but there is substantial random measurement error in estimating distances. To estimate abundance from these data, we use methods which assume g(0)=1 but which includea distance measurement error model. In the case of the 2001 survey, measurement errors were sufficiently small to be negligible, and we use double platform methods which estimate g(0) and assume no measurement error to estimate abundance. From the 1987 survey, we estimate abundance to be 24,532 animals, with 95% CI (13,399; 44,916). From the 2001 NASS survey data, minke whale abundance is estimated to be 43,633 animals, with 95% CI (30,148; 63,149). Article in Journal/Newspaper Balaenoptera acutorostrata Balaenoptera physalus minke whale North Atlantic Directory of Open Access Journals: DOAJ Articles NAMMCO Scientific Publications 7 95 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
minke whales Balaenoptera physalus surveys abundance Ecology QH540-549.5 |
spellingShingle |
minke whales Balaenoptera physalus surveys abundance Ecology QH540-549.5 David L Borchers Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
topic_facet |
minke whales Balaenoptera physalus surveys abundance Ecology QH540-549.5 |
description |
We estimate the abundance of minke whales (Balaenoptera acutorostrata) from the Icelandic coastal shelf aerial surveys carried out as part of the 1987 and 2001 North Atlantic Sightings Surveys (NASS). In the case of the 1987 survey, the probability of detecting animals at distance zero (g(0)) is very close to 1 but there is substantial random measurement error in estimating distances. To estimate abundance from these data, we use methods which assume g(0)=1 but which includea distance measurement error model. In the case of the 2001 survey, measurement errors were sufficiently small to be negligible, and we use double platform methods which estimate g(0) and assume no measurement error to estimate abundance. From the 1987 survey, we estimate abundance to be 24,532 animals, with 95% CI (13,399; 44,916). From the 2001 NASS survey data, minke whale abundance is estimated to be 43,633 animals, with 95% CI (30,148; 63,149). |
format |
Article in Journal/Newspaper |
author |
David L Borchers Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson |
author_facet |
David L Borchers Daniel G Pike Thorvaldur Gunnlaugsson Gísli A Víkingsson |
author_sort |
David L Borchers |
title |
Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
title_short |
Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
title_full |
Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
title_fullStr |
Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
title_full_unstemmed |
Minke whale abundance estimation from the NASS 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
title_sort |
minke whale abundance estimation from the nass 1987 and 2001 aerial cue–counting surveys taking appropriate account of distance estimation errors |
publisher |
Septentrio Academic Publishing |
publishDate |
2009 |
url |
https://doi.org/10.7557/3.2708 https://doaj.org/article/d9770cfc99fa420daa0568a4eca9fac2 |
genre |
Balaenoptera acutorostrata Balaenoptera physalus minke whale North Atlantic |
genre_facet |
Balaenoptera acutorostrata Balaenoptera physalus minke whale North Atlantic |
op_source |
NAMMCO Scientific Publications, Vol 7, Iss 0, Pp 95-110 (2009) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2708 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2708 https://doaj.org/article/d9770cfc99fa420daa0568a4eca9fac2 |
op_doi |
https://doi.org/10.7557/3.2708 |
container_title |
NAMMCO Scientific Publications |
container_volume |
7 |
container_start_page |
95 |
_version_ |
1766366458693025792 |