Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study
The westward migration of bowhead whales (Bering Sea stock) was studied during autumn 2001–04 as part of an oil industry monitoring program. An array of Directional Autonomous Seafloor Acoustic Recorders (DASARs) was deployed northeast of the Northstar oil production island near Prudhoe Bay, Alaska....
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2009
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Online Access: | https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280 |
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/63280 2023-05-15T14:19:04+02:00 Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study Blackwell, Susanna B. Richardson, W.J. Greene, Jr., C.R. Streever, B. 2009-12-10 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280/47217 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280 ARCTIC; Vol. 60 No. 3 (2007): September: 227–339; 255-270 1923-1245 0004-0843 Alaska autumn Balaena mysticetus Beaufort Sea bowhead whale calls diel pattern migration automne mer de Beaufort baleine boréale appels diel info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 2009 ftunivcalgaryojs 2022-03-22T21:20:42Z The westward migration of bowhead whales (Bering Sea stock) was studied during autumn 2001–04 as part of an oil industry monitoring program. An array of Directional Autonomous Seafloor Acoustic Recorders (DASARs) was deployed northeast of the Northstar oil production island near Prudhoe Bay, Alaska. Underwater sounds were recorded continuously for 24–35 days per year, mainly in September. More than 130 000 bowhead calls were detected, and the directional capability of DASARs allowed triangulation of whale position for ~93 500 calls. The migration pathway was closer to shore in 2003–04 than in 2001–02. Calls were clumped in space and time, and there was significantly more calling at night than by day. From 65% to 82% of calls were simple frequency-modulated calls, and the percentage of complex calls was positively related to the daily number of calls. No songs were detected, but in 2004 there were numerous call sequences consisting of repeated identical calls in series and generally lasting up to a few minutes. The DASAR methodology provides detailed information on the temporal and spatial distribution of calling whales and on their acoustic repertoire. La migration à l’ouest de la baleine boréale (population de la mer de Béring) a été étudiée durant quatre automnes (2001-2004) dans le cadre d’un programme d’étude de l’industrie pétrolière. Un réseau d’enregistreurs sous-marins autonomes et directionnels (DASAR) a été déployé au nord-est de Northstar, une île artificielle d’exploitation pétrolière près de Prudhoe Bay en Alaska. Des enregistrements sous-marins continus ont été récoltés pendant 24 à 35 jours chaque année, principalement pendant le mois de septembre. Plus de 130 000 appels de baleines ont été enregistrés et la capacité directionnelle des DASAR a permis de déterminer par triangulation la position des baleines pour ~ 93 500 de ces appels. Le corridor de migration s’est avéré plus proche de la côte en 2003-2004 qu’en 2001-2002. Les appels des baleines étaient groupés dans le temps et l’espace et il y avait significativement plus d’appels la nuit que le jour. Soixante-cinq à 82 % des appels appartenaient au type dit « simple », et le pourcentage d’appels du type « complexe » était positivement corrélé au nombre journalier d’appels. Aucun chant n’a été détecté, mais les enregistrements de 2004 contenaient de nombreuses séquences d’appels composées de séries d’appels identiques répétés pendant 30 minutes et plus. L’utilisation des DASAR a permis d’obtenir des renseignements détaillés sur la distribution spatiale et temporelle de baleines boréales vocalisant ainsi que sur leur répertoire acoustique. Article in Journal/Newspaper Arctic Balaena mysticetus baleine boréale Beaufort Sea Bering Sea bowhead whale Mer de Beaufort Mer de Béring Prudhoe Bay Alaska University of Calgary Journal Hosting Baleine ENVELOPE(140.012,140.012,-66.649,-66.649) Bering Sea la Baleine ENVELOPE(140.012,140.012,-66.649,-66.649) Mer de Beaufort ENVELOPE(-138.005,-138.005,69.500,69.500) ARCTIC 60 3 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Alaska autumn Balaena mysticetus Beaufort Sea bowhead whale calls diel pattern migration automne mer de Beaufort baleine boréale appels diel |
spellingShingle |
Alaska autumn Balaena mysticetus Beaufort Sea bowhead whale calls diel pattern migration automne mer de Beaufort baleine boréale appels diel Blackwell, Susanna B. Richardson, W.J. Greene, Jr., C.R. Streever, B. Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
topic_facet |
Alaska autumn Balaena mysticetus Beaufort Sea bowhead whale calls diel pattern migration automne mer de Beaufort baleine boréale appels diel |
description |
The westward migration of bowhead whales (Bering Sea stock) was studied during autumn 2001–04 as part of an oil industry monitoring program. An array of Directional Autonomous Seafloor Acoustic Recorders (DASARs) was deployed northeast of the Northstar oil production island near Prudhoe Bay, Alaska. Underwater sounds were recorded continuously for 24–35 days per year, mainly in September. More than 130 000 bowhead calls were detected, and the directional capability of DASARs allowed triangulation of whale position for ~93 500 calls. The migration pathway was closer to shore in 2003–04 than in 2001–02. Calls were clumped in space and time, and there was significantly more calling at night than by day. From 65% to 82% of calls were simple frequency-modulated calls, and the percentage of complex calls was positively related to the daily number of calls. No songs were detected, but in 2004 there were numerous call sequences consisting of repeated identical calls in series and generally lasting up to a few minutes. The DASAR methodology provides detailed information on the temporal and spatial distribution of calling whales and on their acoustic repertoire. La migration à l’ouest de la baleine boréale (population de la mer de Béring) a été étudiée durant quatre automnes (2001-2004) dans le cadre d’un programme d’étude de l’industrie pétrolière. Un réseau d’enregistreurs sous-marins autonomes et directionnels (DASAR) a été déployé au nord-est de Northstar, une île artificielle d’exploitation pétrolière près de Prudhoe Bay en Alaska. Des enregistrements sous-marins continus ont été récoltés pendant 24 à 35 jours chaque année, principalement pendant le mois de septembre. Plus de 130 000 appels de baleines ont été enregistrés et la capacité directionnelle des DASAR a permis de déterminer par triangulation la position des baleines pour ~ 93 500 de ces appels. Le corridor de migration s’est avéré plus proche de la côte en 2003-2004 qu’en 2001-2002. Les appels des baleines étaient groupés dans le temps et l’espace et il y avait significativement plus d’appels la nuit que le jour. Soixante-cinq à 82 % des appels appartenaient au type dit « simple », et le pourcentage d’appels du type « complexe » était positivement corrélé au nombre journalier d’appels. Aucun chant n’a été détecté, mais les enregistrements de 2004 contenaient de nombreuses séquences d’appels composées de séries d’appels identiques répétés pendant 30 minutes et plus. L’utilisation des DASAR a permis d’obtenir des renseignements détaillés sur la distribution spatiale et temporelle de baleines boréales vocalisant ainsi que sur leur répertoire acoustique. |
format |
Article in Journal/Newspaper |
author |
Blackwell, Susanna B. Richardson, W.J. Greene, Jr., C.R. Streever, B. |
author_facet |
Blackwell, Susanna B. Richardson, W.J. Greene, Jr., C.R. Streever, B. |
author_sort |
Blackwell, Susanna B. |
title |
Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
title_short |
Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
title_full |
Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
title_fullStr |
Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
title_full_unstemmed |
Bowhead Whale (Balaena mysticetus) Migration and Calling Behaviour in the Alaskan Beaufort Sea, Autumn 2001–04: An Acoustic Localization Study |
title_sort |
bowhead whale (balaena mysticetus) migration and calling behaviour in the alaskan beaufort sea, autumn 2001–04: an acoustic localization study |
publisher |
The Arctic Institute of North America |
publishDate |
2009 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280 |
long_lat |
ENVELOPE(140.012,140.012,-66.649,-66.649) ENVELOPE(140.012,140.012,-66.649,-66.649) ENVELOPE(-138.005,-138.005,69.500,69.500) |
geographic |
Baleine Bering Sea la Baleine Mer de Beaufort |
geographic_facet |
Baleine Bering Sea la Baleine Mer de Beaufort |
genre |
Arctic Balaena mysticetus baleine boréale Beaufort Sea Bering Sea bowhead whale Mer de Beaufort Mer de Béring Prudhoe Bay Alaska |
genre_facet |
Arctic Balaena mysticetus baleine boréale Beaufort Sea Bering Sea bowhead whale Mer de Beaufort Mer de Béring Prudhoe Bay Alaska |
op_source |
ARCTIC; Vol. 60 No. 3 (2007): September: 227–339; 255-270 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280/47217 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/63280 |
container_title |
ARCTIC |
container_volume |
60 |
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3 |
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1766290616373739520 |