Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters
Harbour seal (Phoca vitulina) numbers along the coast of Iceland were monitored by aerial survey in the period 1980-2006. Trends in the abundance of the harbour seal population on the whole coast and in coastal regions of Iceland waters were estimated using ANCOVA on the survey counts, corrected for...
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2010
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ftunitroemsoe:oai:ojs.henry.ub.uit.no:article/2687 2023-05-15T15:46:29+02:00 Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters Hauksson, Erlingur 2010-09-01 application/pdf https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687 https://doi.org/10.7557/3.2687 eng eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687/2539 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687 doi:10.7557/3.2687 Copyright (c) 2010 Erlingur Hauksson http://creativecommons.org/licenses/by/3.0/ CC-BY NAMMCO Scientific Publications; Vol 8: Harbour seals in the North Atlantic and the Baltic; 227-244 2309-2491 1560-2206 10.7557/3.8 harbour seals Iceland abundance surveys info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 ftunitroemsoe https://doi.org/10.7557/3.2687 https://doi.org/10.7557/3.8 2021-08-16T16:37:46Z Harbour seal (Phoca vitulina) numbers along the coast of Iceland were monitored by aerial survey in the period 1980-2006. Trends in the abundance of the harbour seal population on the whole coast and in coastal regions of Iceland waters were estimated using ANCOVA on the survey counts, corrected for the influence of several covariates. Harbour seals were found in every coastal area, but were most abundant in Faxaflói, Breiðafjörður and on the northwest coast inthe beginning of this study. Harbour seal numbers declined significantly at a rate of rest = -0.04 (SE 0.005) yr-1 during this period. Decline was highest in Faxaflói and at the south coast (≅7%), while the east coast experienced a significant but lesser (≅1%) decline. Other coastal areas did not show significant trends. The northwest coast was the richest harbour seal area in Iceland in 2006. In Icelandic waters seals are commercially harvested, and unreported but probably high numbers of harbour seals are killed intentionally by shooting and accidentally in fishing geareach year. These factors likely contributed to the overall observed decline in seal numbers. Article in Journal/Newspaper Breiðafjörður harbour seal Iceland Phoca vitulina University of Tromsø: Septentrio Academic Publishing Breiðafjörður ENVELOPE(-23.219,-23.219,65.253,65.253) Faxaflói ENVELOPE(-22.451,-22.451,64.322,64.322) NAMMCO Scientific Publications 8 227 |
institution |
Open Polar |
collection |
University of Tromsø: Septentrio Academic Publishing |
op_collection_id |
ftunitroemsoe |
language |
English |
topic |
harbour seals Iceland abundance surveys |
spellingShingle |
harbour seals Iceland abundance surveys Hauksson, Erlingur Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
topic_facet |
harbour seals Iceland abundance surveys |
description |
Harbour seal (Phoca vitulina) numbers along the coast of Iceland were monitored by aerial survey in the period 1980-2006. Trends in the abundance of the harbour seal population on the whole coast and in coastal regions of Iceland waters were estimated using ANCOVA on the survey counts, corrected for the influence of several covariates. Harbour seals were found in every coastal area, but were most abundant in Faxaflói, Breiðafjörður and on the northwest coast inthe beginning of this study. Harbour seal numbers declined significantly at a rate of rest = -0.04 (SE 0.005) yr-1 during this period. Decline was highest in Faxaflói and at the south coast (≅7%), while the east coast experienced a significant but lesser (≅1%) decline. Other coastal areas did not show significant trends. The northwest coast was the richest harbour seal area in Iceland in 2006. In Icelandic waters seals are commercially harvested, and unreported but probably high numbers of harbour seals are killed intentionally by shooting and accidentally in fishing geareach year. These factors likely contributed to the overall observed decline in seal numbers. |
format |
Article in Journal/Newspaper |
author |
Hauksson, Erlingur |
author_facet |
Hauksson, Erlingur |
author_sort |
Hauksson, Erlingur |
title |
Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
title_short |
Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
title_full |
Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
title_fullStr |
Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
title_full_unstemmed |
Monitoring trends in the abundance of harbour seals (Phoca vitulina) in Icelandic waters |
title_sort |
monitoring trends in the abundance of harbour seals (phoca vitulina) in icelandic waters |
publisher |
Septentrio Academic Publishing |
publishDate |
2010 |
url |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687 https://doi.org/10.7557/3.2687 |
long_lat |
ENVELOPE(-23.219,-23.219,65.253,65.253) ENVELOPE(-22.451,-22.451,64.322,64.322) |
geographic |
Breiðafjörður Faxaflói |
geographic_facet |
Breiðafjörður Faxaflói |
genre |
Breiðafjörður harbour seal Iceland Phoca vitulina |
genre_facet |
Breiðafjörður harbour seal Iceland Phoca vitulina |
op_source |
NAMMCO Scientific Publications; Vol 8: Harbour seals in the North Atlantic and the Baltic; 227-244 2309-2491 1560-2206 10.7557/3.8 |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687/2539 https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2687 doi:10.7557/3.2687 |
op_rights |
Copyright (c) 2010 Erlingur Hauksson http://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7557/3.2687 https://doi.org/10.7557/3.8 |
container_title |
NAMMCO Scientific Publications |
container_volume |
8 |
container_start_page |
227 |
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1766381176734351360 |