Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project

Long-term community-based monitoring of narwhals (Monodon monoceros) is needed because narwhals are important to local Inuit and are facing changes in their environment. We examined the suitability of passive acoustic recording for monitoring narwhals, using data gathered in the Canadian Arctic from...

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Published in:ARCTIC
Main Authors: Marcoux, Marianne, Auger-Méthé, Marie, Chmelnitsky, Elly G., Ferguson, Steven H., Humphries, Murray M.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 2011
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67168
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author Marcoux, Marianne
Auger-Méthé, Marie
Chmelnitsky, Elly G.
Ferguson, Steven H.
Humphries, Murray M.
author_facet Marcoux, Marianne
Auger-Méthé, Marie
Chmelnitsky, Elly G.
Ferguson, Steven H.
Humphries, Murray M.
author_sort Marcoux, Marianne
collection Unknown
container_issue 3
container_title ARCTIC
container_volume 64
description Long-term community-based monitoring of narwhals (Monodon monoceros) is needed because narwhals are important to local Inuit and are facing changes in their environment. We examined the suitability of passive acoustic recording for monitoring narwhals, using data gathered in the Canadian Arctic from an autonomous acoustic recorder (Repulse Bay, 2006) and a hand-held digital recorder (Koluktoo Bay, 2006 – 08). We found a relationship between the number of narwhals observed passing a fixed point and the number of calls heard. In addition, we found that an automated call detector could isolate segments of recording containing narwhal vocalizations over long recording periods containing non-target sound, thus decreasing the time spent on the analysis. Collectively, these results suggest that combining passive acoustic sampling with an automated call detector offers a useful approach for local monitoring of the presence and relative abundance of narwhals. La nécessité d’avoir un programme communautaire de surveillance à long terme des narvals (Monodon monoceros) s’avère évidente étant donné que les narvals revêtent de l’importance aux yeux des Inuits de la région et que leur environ­nement est en pleine évolution. Nous explorons la pertinence d’un programme de surveillance par acoustique passive pour les populations de narvals à partir de données récoltées dans l’Arctique canadien à l’aide d’une enregistreuse autonome (Repulse Bay, 2006) et d’une enregistreuse portable (Koluktoo Bay, 2006 – 2008). Grâce à des enregistrements accompagnés d’obser­vations sur le terrain, nous avons trouvé une corrélation entre le nombre de vocalisations entendues et le nombre de narvals observés. L’utilisation d’un détecteur automatique de vocalisations de narvals a permis d’isoler des segments d’enregis­trements contenant des vocalisations de narvals sur de longues périodes d’enregistrement contenant des sons non-ciblés, et ainsi diminuer le temps d’analyse. Ces résultats suggèrent que la combinaison de surveillance acoustique ...
format Article in Journal/Newspaper
genre Arctic
Arctic
Baffin Island
Baffin
Île de Baffin
inuit
inuits
Monodon monoceros
narwhal*
Repulse Bay
narval
narval
genre_facet Arctic
Arctic
Baffin Island
Baffin
Île de Baffin
inuit
inuits
Monodon monoceros
narwhal*
Repulse Bay
narval
narval
geographic Arctic
Baffin Island
Repulse Bay
Île de Baffin
Koluktoo Bay
geographic_facet Arctic
Baffin Island
Repulse Bay
Île de Baffin
Koluktoo Bay
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language English
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op_source ARCTIC; Vol. 64 No. 3 (2011): September: 269–398; 307–316
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/67168 2025-06-15T14:14:25+00:00 Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project Marcoux, Marianne Auger-Méthé, Marie Chmelnitsky, Elly G. Ferguson, Steven H. Humphries, Murray M. 2011-09-07 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67168 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67168/51078 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67168 ARCTIC; Vol. 64 No. 3 (2011): September: 269–398; 307–316 1923-1245 0004-0843 animal behaviour automated detection Baffin Island marine mammal narwhal participatory monitoring comportement animal détection automatique île de Baffin mammifère marin narval surveillance participative info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2011 ftunivcalgaryojs 2025-05-27T03:29:43Z Long-term community-based monitoring of narwhals (Monodon monoceros) is needed because narwhals are important to local Inuit and are facing changes in their environment. We examined the suitability of passive acoustic recording for monitoring narwhals, using data gathered in the Canadian Arctic from an autonomous acoustic recorder (Repulse Bay, 2006) and a hand-held digital recorder (Koluktoo Bay, 2006 – 08). We found a relationship between the number of narwhals observed passing a fixed point and the number of calls heard. In addition, we found that an automated call detector could isolate segments of recording containing narwhal vocalizations over long recording periods containing non-target sound, thus decreasing the time spent on the analysis. Collectively, these results suggest that combining passive acoustic sampling with an automated call detector offers a useful approach for local monitoring of the presence and relative abundance of narwhals. La nécessité d’avoir un programme communautaire de surveillance à long terme des narvals (Monodon monoceros) s’avère évidente étant donné que les narvals revêtent de l’importance aux yeux des Inuits de la région et que leur environ­nement est en pleine évolution. Nous explorons la pertinence d’un programme de surveillance par acoustique passive pour les populations de narvals à partir de données récoltées dans l’Arctique canadien à l’aide d’une enregistreuse autonome (Repulse Bay, 2006) et d’une enregistreuse portable (Koluktoo Bay, 2006 – 2008). Grâce à des enregistrements accompagnés d’obser­vations sur le terrain, nous avons trouvé une corrélation entre le nombre de vocalisations entendues et le nombre de narvals observés. L’utilisation d’un détecteur automatique de vocalisations de narvals a permis d’isoler des segments d’enregis­trements contenant des vocalisations de narvals sur de longues périodes d’enregistrement contenant des sons non-ciblés, et ainsi diminuer le temps d’analyse. Ces résultats suggèrent que la combinaison de surveillance acoustique ... Article in Journal/Newspaper Arctic Arctic Baffin Island Baffin Île de Baffin inuit inuits Monodon monoceros narwhal* Repulse Bay narval narval Unknown Arctic Baffin Island Repulse Bay ENVELOPE(69.383,69.383,-48.883,-48.883) Île de Baffin ENVELOPE(-74.998,-74.998,68.001,68.001) Koluktoo Bay ENVELOPE(-80.832,-80.832,72.085,72.085) ARCTIC 64 3
spellingShingle animal behaviour
automated detection
Baffin Island
marine mammal
narwhal
participatory monitoring
comportement animal
détection automatique
île de Baffin
mammifère marin
narval
surveillance participative
Marcoux, Marianne
Auger-Méthé, Marie
Chmelnitsky, Elly G.
Ferguson, Steven H.
Humphries, Murray M.
Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title_full Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title_fullStr Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title_full_unstemmed Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title_short Local Passive Acoustic Monitoring of Narwhal Presence in the Canadian Arctic: A Pilot Project
title_sort local passive acoustic monitoring of narwhal presence in the canadian arctic: a pilot project
topic animal behaviour
automated detection
Baffin Island
marine mammal
narwhal
participatory monitoring
comportement animal
détection automatique
île de Baffin
mammifère marin
narval
surveillance participative
topic_facet animal behaviour
automated detection
Baffin Island
marine mammal
narwhal
participatory monitoring
comportement animal
détection automatique
île de Baffin
mammifère marin
narval
surveillance participative
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/67168