Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas
In Canada, narwhals (Monodon monoceros L., 1758) are divided into the Baffin Bay (BB) and Northern Hudson Bay (NHB) populations. Satellite tracking of twenty-one narwhals from BB and NHB provided information on their diving behaviour and was used to identify foraging regions. Previous research from...
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ftunivtoronto:oai:localhost:1807/75372 2023-05-15T15:11:52+02:00 Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas Watt, Cortney Orr, Jack Ferguson, Steven H. 2016-09-27 http://hdl.handle.net/1807/75372 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0178 unknown NRC Research Press (a division of Canadian Science Publishing) 0008-4301 http://hdl.handle.net/1807/75372 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0178 Article 2016 ftunivtoronto 2020-06-17T12:02:32Z In Canada, narwhals (Monodon monoceros L., 1758) are divided into the Baffin Bay (BB) and Northern Hudson Bay (NHB) populations. Satellite tracking of twenty-one narwhals from BB and NHB provided information on their diving behaviour and was used to identify foraging regions. Previous research from hunted narwhals indicated that narwhals in both populations depend on benthic prey to meet their dietary needs. To evaluate home ranges and define areas important for benthic foraging we conducted kernel density analysis on narwhal locations and focused on areas where deep diving occurs, as a proxy for foraging, in the winter, spring and migratory periods. These analyses revealed important areas for foraging for BB narwhals on the summer grounds in Eclipse Sound, and the winter grounds in Davis Strait, as well as on the migratory pathway between regions. Similarly, important areas were identified for the NHB narwhal population in northwestern Hudson Bay in summer, in NHB and Hudson Strait on the migration, and to the east of the entrance to Hudson Strait in the winter. This, along with an analysis of the absolute dive depths provides information on seasons and regions important for foraging, which is particularly relevant with increasing industrial activities in the Arctic. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Davis Strait Eclipse Sound Hudson Bay Hudson Strait Monodon monoceros narwhal* University of Toronto: Research Repository T-Space Arctic Baffin Bay Canada Eclipse Sound ENVELOPE(-78.998,-78.998,72.635,72.635) Hudson Hudson Bay Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) |
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Open Polar |
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University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
unknown |
description |
In Canada, narwhals (Monodon monoceros L., 1758) are divided into the Baffin Bay (BB) and Northern Hudson Bay (NHB) populations. Satellite tracking of twenty-one narwhals from BB and NHB provided information on their diving behaviour and was used to identify foraging regions. Previous research from hunted narwhals indicated that narwhals in both populations depend on benthic prey to meet their dietary needs. To evaluate home ranges and define areas important for benthic foraging we conducted kernel density analysis on narwhal locations and focused on areas where deep diving occurs, as a proxy for foraging, in the winter, spring and migratory periods. These analyses revealed important areas for foraging for BB narwhals on the summer grounds in Eclipse Sound, and the winter grounds in Davis Strait, as well as on the migratory pathway between regions. Similarly, important areas were identified for the NHB narwhal population in northwestern Hudson Bay in summer, in NHB and Hudson Strait on the migration, and to the east of the entrance to Hudson Strait in the winter. This, along with an analysis of the absolute dive depths provides information on seasons and regions important for foraging, which is particularly relevant with increasing industrial activities in the Arctic. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. |
format |
Article in Journal/Newspaper |
author |
Watt, Cortney Orr, Jack Ferguson, Steven H. |
spellingShingle |
Watt, Cortney Orr, Jack Ferguson, Steven H. Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
author_facet |
Watt, Cortney Orr, Jack Ferguson, Steven H. |
author_sort |
Watt, Cortney |
title |
Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
title_short |
Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
title_full |
Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
title_fullStr |
Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
title_full_unstemmed |
Spatial distribution of narwhal (Monodon monoceros L.) diving for Canadian populations helps identify important seasonal foraging areas |
title_sort |
spatial distribution of narwhal (monodon monoceros l.) diving for canadian populations helps identify important seasonal foraging areas |
publisher |
NRC Research Press (a division of Canadian Science Publishing) |
publishDate |
2016 |
url |
http://hdl.handle.net/1807/75372 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0178 |
long_lat |
ENVELOPE(-78.998,-78.998,72.635,72.635) ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Arctic Baffin Bay Canada Eclipse Sound Hudson Hudson Bay Hudson Strait |
geographic_facet |
Arctic Baffin Bay Canada Eclipse Sound Hudson Hudson Bay Hudson Strait |
genre |
Arctic Baffin Bay Baffin Bay Baffin Davis Strait Eclipse Sound Hudson Bay Hudson Strait Monodon monoceros narwhal* |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Davis Strait Eclipse Sound Hudson Bay Hudson Strait Monodon monoceros narwhal* |
op_relation |
0008-4301 http://hdl.handle.net/1807/75372 http://www.nrcresearchpress.com/doi/abs/10.1139/cjz-2016-0178 |
_version_ |
1766342650910212096 |