Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments
The last extensive (pan-Arctic) review on knowledge available on the bearded seal (Erignathus barbatus) was conducted by Cameron et al. in 2010. As bearded seals are hunted off Svalbard and Greenland but no stock assessments are available, NAMMCO requested a status review, and if possible, an assess...
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2022
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ftdoajarticles:oai:doaj.org/article:67cee968cd024f4c9378fe6c0e190476 2023-05-15T14:50:09+02:00 Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments Nicolai Scherdin Jana Djukarić Geneviève Desportes 2022-12-01T00:00:00Z https://doi.org/10.7557/3.6883 https://doaj.org/article/67cee968cd024f4c9378fe6c0e190476 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/6883 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 doi:10.7557/3.6883 1560-2206 2309-2491 https://doaj.org/article/67cee968cd024f4c9378fe6c0e190476 NAMMCO Scientific Publications, Vol 12 (2022) Bearded seal Erignathus barbatus Atlantic Arctic post-2010 knowledge Literature review Ecology QH540-549.5 article 2022 ftdoajarticles https://doi.org/10.7557/3.6883 2022-12-30T19:24:37Z The last extensive (pan-Arctic) review on knowledge available on the bearded seal (Erignathus barbatus) was conducted by Cameron et al. in 2010. As bearded seals are hunted off Svalbard and Greenland but no stock assessments are available, NAMMCO requested a status review, and if possible, an assessment of the species in its area. This literature review attempts to summarise the knowledge that has become available post 2010, with a focus on the Atlantic Arctic. A large amount of information has become available on the behaviour of the bearded seal, with hearing, vocalisation, haul-out behaviour and movement patterns (through satelitte tagging), and their phenology, being well studied. A database of baseline blood parameters is slowly being built but is still limited. New data on distribution has emerged from PAM studies and non-targeted surveys. Abundance estimates are missing for Svalbard, but partial estimates have become available for the North Water Polynya in 2009 and 2014. Additionally, observations of bearded seals from aerial line-transect surveys are available for several areas of Greenland but have not been analysed. More information has become available on the impact of anthropogenic stressors, such as climate change and other related environmental changes, although demographic impacts of changes are missing. Catch data exists for both Svalbard and Greenland, but for the latter the data needs to be thoroughly validated. In summary, information on stock structure as well as local and global abundance estimates, which are both important to assess the sustainability of current catches, are still missing. However other lines of evidence can inform the delineation of management areas and the results of a pan-arctic genetic study should become available shortly. There is survey data available from Greenland that could be used to generate local abundance estimates, the analysis of which should be prioritised. Article in Journal/Newspaper Arctic Atlantic Arctic Atlantic-Arctic bearded seal Climate change Erignathus barbatus Greenland Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Svalbard Greenland NAMMCO Scientific Publications 12 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Bearded seal Erignathus barbatus Atlantic Arctic post-2010 knowledge Literature review Ecology QH540-549.5 |
spellingShingle |
Bearded seal Erignathus barbatus Atlantic Arctic post-2010 knowledge Literature review Ecology QH540-549.5 Nicolai Scherdin Jana Djukarić Geneviève Desportes Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
topic_facet |
Bearded seal Erignathus barbatus Atlantic Arctic post-2010 knowledge Literature review Ecology QH540-549.5 |
description |
The last extensive (pan-Arctic) review on knowledge available on the bearded seal (Erignathus barbatus) was conducted by Cameron et al. in 2010. As bearded seals are hunted off Svalbard and Greenland but no stock assessments are available, NAMMCO requested a status review, and if possible, an assessment of the species in its area. This literature review attempts to summarise the knowledge that has become available post 2010, with a focus on the Atlantic Arctic. A large amount of information has become available on the behaviour of the bearded seal, with hearing, vocalisation, haul-out behaviour and movement patterns (through satelitte tagging), and their phenology, being well studied. A database of baseline blood parameters is slowly being built but is still limited. New data on distribution has emerged from PAM studies and non-targeted surveys. Abundance estimates are missing for Svalbard, but partial estimates have become available for the North Water Polynya in 2009 and 2014. Additionally, observations of bearded seals from aerial line-transect surveys are available for several areas of Greenland but have not been analysed. More information has become available on the impact of anthropogenic stressors, such as climate change and other related environmental changes, although demographic impacts of changes are missing. Catch data exists for both Svalbard and Greenland, but for the latter the data needs to be thoroughly validated. In summary, information on stock structure as well as local and global abundance estimates, which are both important to assess the sustainability of current catches, are still missing. However other lines of evidence can inform the delineation of management areas and the results of a pan-arctic genetic study should become available shortly. There is survey data available from Greenland that could be used to generate local abundance estimates, the analysis of which should be prioritised. |
format |
Article in Journal/Newspaper |
author |
Nicolai Scherdin Jana Djukarić Geneviève Desportes |
author_facet |
Nicolai Scherdin Jana Djukarić Geneviève Desportes |
author_sort |
Nicolai Scherdin |
title |
Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
title_short |
Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
title_full |
Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
title_fullStr |
Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
title_full_unstemmed |
Bearded seals in the Atlantic Arctic: review of post 2010 knowledge available for informing stock assessments |
title_sort |
bearded seals in the atlantic arctic: review of post 2010 knowledge available for informing stock assessments |
publisher |
Septentrio Academic Publishing |
publishDate |
2022 |
url |
https://doi.org/10.7557/3.6883 https://doaj.org/article/67cee968cd024f4c9378fe6c0e190476 |
geographic |
Arctic Svalbard Greenland |
geographic_facet |
Arctic Svalbard Greenland |
genre |
Arctic Atlantic Arctic Atlantic-Arctic bearded seal Climate change Erignathus barbatus Greenland Svalbard |
genre_facet |
Arctic Atlantic Arctic Atlantic-Arctic bearded seal Climate change Erignathus barbatus Greenland Svalbard |
op_source |
NAMMCO Scientific Publications, Vol 12 (2022) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/6883 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 doi:10.7557/3.6883 1560-2206 2309-2491 https://doaj.org/article/67cee968cd024f4c9378fe6c0e190476 |
op_doi |
https://doi.org/10.7557/3.6883 |
container_title |
NAMMCO Scientific Publications |
container_volume |
12 |
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1766321212981510144 |