A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications
Until recently Atlantic walruses (Odobenus rosmarus rosmarus) have been subject to relatively intense exploitation in West Greenland. Animals in this stock have also been hunted in Nunavut/Canada. However, the demographic identity of these animals and their connection with walruses in neighbouring a...
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Septentrio Academic Publishing
2014
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ftdoajarticles:oai:doaj.org/article:1e97328a231b498297f15b2ba543129b 2023-05-15T15:35:00+02:00 A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications Liselotte Wesley Andersen Erik W Born Robert EA Stewart Rune Dietz DW Doidge Clement Lanthier 2014-12-01T00:00:00Z https://doi.org/10.7557/3.2610 https://doaj.org/article/1e97328a231b498297f15b2ba543129b EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2610 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2610 https://doaj.org/article/1e97328a231b498297f15b2ba543129b NAMMCO Scientific Publications, Vol 9, Iss 0, Pp 33-52 (2014) walrus Odobenus rosmarus genetics stocks West Greenland Baffin Bay Greenland Canada Ecology QH540-549.5 article 2014 ftdoajarticles https://doi.org/10.7557/3.2610 2022-12-31T05:50:06Z Until recently Atlantic walruses (Odobenus rosmarus rosmarus) have been subject to relatively intense exploitation in West Greenland. Animals in this stock have also been hunted in Nunavut/Canada. However, the demographic identity of these animals and their connection with walruses in neighbouring areas is poorly resolved, hampering the determination of sustainable harvest levels. It has been suggested that walruses in West Greenland are genetically linked with walruses at SE Baffin Island (Canada) where they are also hunted for subsistence purposes. To determine the relationship(s) between walruses in these areas we conducted a genetic analysis including recent samples from West Greenland, Southeast Baffin Island in western Davis Strait, Hudson Strait in Canada and Northwest Greenland in northern Baffin Bay. Seventeen microsatellite markers were applied to all samples. Walruses in West Greenland and at Southeast Baffin Island did not differ from each other and therefore may be regarded as belonging to the same stock. However, walruses in these two areas differed genetically from both Northwest Greenland and Hudson Strait walruses. These findings support (1) that there are subunits within the range of walruses in the Hudson Strait-Davis Strait-Baffin Bay region and (2) that walruses along E Baffin Island and W Greenland constitute a common population that receive some influx from Hudson Strait. Thus, sustainable catch levels in Southeast Baffin Island (Nunavut) and in West Greenland must be set in light of the finding that they belong to the same stock, which is exploited in these two areas. This requires Canadian-Greenlandic co-management of the W Greenland-SE Baffin Island walrus stock. Article in Journal/Newspaper Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Greenland greenlandic Hudson Strait Nunavut Odobenus rosmarus walrus* Directory of Open Access Journals: DOAJ Articles Nunavut Baffin Bay Baffin Island Canada Greenland Hudson Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) NAMMCO Scientific Publications 9 33 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
walrus Odobenus rosmarus genetics stocks West Greenland Baffin Bay Greenland Canada Ecology QH540-549.5 |
spellingShingle |
walrus Odobenus rosmarus genetics stocks West Greenland Baffin Bay Greenland Canada Ecology QH540-549.5 Liselotte Wesley Andersen Erik W Born Robert EA Stewart Rune Dietz DW Doidge Clement Lanthier A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
topic_facet |
walrus Odobenus rosmarus genetics stocks West Greenland Baffin Bay Greenland Canada Ecology QH540-549.5 |
description |
Until recently Atlantic walruses (Odobenus rosmarus rosmarus) have been subject to relatively intense exploitation in West Greenland. Animals in this stock have also been hunted in Nunavut/Canada. However, the demographic identity of these animals and their connection with walruses in neighbouring areas is poorly resolved, hampering the determination of sustainable harvest levels. It has been suggested that walruses in West Greenland are genetically linked with walruses at SE Baffin Island (Canada) where they are also hunted for subsistence purposes. To determine the relationship(s) between walruses in these areas we conducted a genetic analysis including recent samples from West Greenland, Southeast Baffin Island in western Davis Strait, Hudson Strait in Canada and Northwest Greenland in northern Baffin Bay. Seventeen microsatellite markers were applied to all samples. Walruses in West Greenland and at Southeast Baffin Island did not differ from each other and therefore may be regarded as belonging to the same stock. However, walruses in these two areas differed genetically from both Northwest Greenland and Hudson Strait walruses. These findings support (1) that there are subunits within the range of walruses in the Hudson Strait-Davis Strait-Baffin Bay region and (2) that walruses along E Baffin Island and W Greenland constitute a common population that receive some influx from Hudson Strait. Thus, sustainable catch levels in Southeast Baffin Island (Nunavut) and in West Greenland must be set in light of the finding that they belong to the same stock, which is exploited in these two areas. This requires Canadian-Greenlandic co-management of the W Greenland-SE Baffin Island walrus stock. |
format |
Article in Journal/Newspaper |
author |
Liselotte Wesley Andersen Erik W Born Robert EA Stewart Rune Dietz DW Doidge Clement Lanthier |
author_facet |
Liselotte Wesley Andersen Erik W Born Robert EA Stewart Rune Dietz DW Doidge Clement Lanthier |
author_sort |
Liselotte Wesley Andersen |
title |
A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
title_short |
A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
title_full |
A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
title_fullStr |
A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
title_full_unstemmed |
A genetic comparison of West Greenland and Baffin Island (Canada) walruses: Management implications |
title_sort |
genetic comparison of west greenland and baffin island (canada) walruses: management implications |
publisher |
Septentrio Academic Publishing |
publishDate |
2014 |
url |
https://doi.org/10.7557/3.2610 https://doaj.org/article/1e97328a231b498297f15b2ba543129b |
long_lat |
ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Nunavut Baffin Bay Baffin Island Canada Greenland Hudson Hudson Strait |
geographic_facet |
Nunavut Baffin Bay Baffin Island Canada Greenland Hudson Hudson Strait |
genre |
Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Greenland greenlandic Hudson Strait Nunavut Odobenus rosmarus walrus* |
genre_facet |
Baffin Bay Baffin Bay Baffin Island Baffin Davis Strait Greenland greenlandic Hudson Strait Nunavut Odobenus rosmarus walrus* |
op_source |
NAMMCO Scientific Publications, Vol 9, Iss 0, Pp 33-52 (2014) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2610 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2610 https://doaj.org/article/1e97328a231b498297f15b2ba543129b |
op_doi |
https://doi.org/10.7557/3.2610 |
container_title |
NAMMCO Scientific Publications |
container_volume |
9 |
container_start_page |
33 |
_version_ |
1766365275146420224 |