Pygmy Blue Whale Diving Behaviour Reflects Song Structure
Passive acoustic monitoring is increasingly employed to monitor whales, their population size, habitat usage, and behaviour. However, in the case of the eastern Indian Ocean pygmy blue whale (EIOPB whale), its applicability is limited by our lack of understanding of the behavioural context of sound...
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Online Access: | https://doi.org/10.3390/jmse10091227 https://doaj.org/article/a1339c0c6b2d451faed7e0245578c7be |
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ftdoajarticles:oai:doaj.org/article:a1339c0c6b2d451faed7e0245578c7be 2023-05-15T15:45:08+02:00 Pygmy Blue Whale Diving Behaviour Reflects Song Structure Andrew M. Davenport Christine Erbe Micheline-Nicole M. Jenner K. Curt S. Jenner Benjamin J. Saunders Robert D. McCauley 2022-09-01T00:00:00Z https://doi.org/10.3390/jmse10091227 https://doaj.org/article/a1339c0c6b2d451faed7e0245578c7be EN eng MDPI AG https://www.mdpi.com/2077-1312/10/9/1227 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10091227 2077-1312 https://doaj.org/article/a1339c0c6b2d451faed7e0245578c7be Journal of Marine Science and Engineering, Vol 10, Iss 1227, p 1227 (2022) Indian Ocean pygmy blue whale acoustic behaviour biotelemetry song Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2022 ftdoajarticles https://doi.org/10.3390/jmse10091227 2022-12-30T19:57:50Z Passive acoustic monitoring is increasingly employed to monitor whales, their population size, habitat usage, and behaviour. However, in the case of the eastern Indian Ocean pygmy blue whale (EIOPB whale), its applicability is limited by our lack of understanding of the behavioural context of sound production. This study explored the context of singing behaviour using a 7.6-day biotelemetry dataset from a single EIOPB whale moving north from 31.5° S to 28.5° S along the Western Australian coast and a simultaneously collected, but separate, acoustic recording. Diving behaviour was classified using an automated classification schema. Singing was identified in the depth, pitch, and fluking time series of the dive profile. The EIOPB whale sang profusely as it migrated, spending more time singing during the day (76.8%) than at night (64.9%), and most during twilight periods (83.3%). The EIOPB whale almost exclusively produced the three-unit (P3) song while milling. It sang the two-unit (P2) song in similar proportions to the P3 song while travelling, except at night when P3 was sung 2.7 times more than P2. A correlation between singing depth, migration duration, and water temperature provides a biological basis to explain depth preferences for sound production, which may contribute to the cause of intra- and inter-annual sound frequency trends. Article in Journal/Newspaper Blue whale Directory of Open Access Journals: DOAJ Articles Indian Journal of Marine Science and Engineering 10 9 1227 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Indian Ocean pygmy blue whale acoustic behaviour biotelemetry song Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
Indian Ocean pygmy blue whale acoustic behaviour biotelemetry song Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Andrew M. Davenport Christine Erbe Micheline-Nicole M. Jenner K. Curt S. Jenner Benjamin J. Saunders Robert D. McCauley Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
topic_facet |
Indian Ocean pygmy blue whale acoustic behaviour biotelemetry song Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Passive acoustic monitoring is increasingly employed to monitor whales, their population size, habitat usage, and behaviour. However, in the case of the eastern Indian Ocean pygmy blue whale (EIOPB whale), its applicability is limited by our lack of understanding of the behavioural context of sound production. This study explored the context of singing behaviour using a 7.6-day biotelemetry dataset from a single EIOPB whale moving north from 31.5° S to 28.5° S along the Western Australian coast and a simultaneously collected, but separate, acoustic recording. Diving behaviour was classified using an automated classification schema. Singing was identified in the depth, pitch, and fluking time series of the dive profile. The EIOPB whale sang profusely as it migrated, spending more time singing during the day (76.8%) than at night (64.9%), and most during twilight periods (83.3%). The EIOPB whale almost exclusively produced the three-unit (P3) song while milling. It sang the two-unit (P2) song in similar proportions to the P3 song while travelling, except at night when P3 was sung 2.7 times more than P2. A correlation between singing depth, migration duration, and water temperature provides a biological basis to explain depth preferences for sound production, which may contribute to the cause of intra- and inter-annual sound frequency trends. |
format |
Article in Journal/Newspaper |
author |
Andrew M. Davenport Christine Erbe Micheline-Nicole M. Jenner K. Curt S. Jenner Benjamin J. Saunders Robert D. McCauley |
author_facet |
Andrew M. Davenport Christine Erbe Micheline-Nicole M. Jenner K. Curt S. Jenner Benjamin J. Saunders Robert D. McCauley |
author_sort |
Andrew M. Davenport |
title |
Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
title_short |
Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
title_full |
Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
title_fullStr |
Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
title_full_unstemmed |
Pygmy Blue Whale Diving Behaviour Reflects Song Structure |
title_sort |
pygmy blue whale diving behaviour reflects song structure |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/jmse10091227 https://doaj.org/article/a1339c0c6b2d451faed7e0245578c7be |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Blue whale |
genre_facet |
Blue whale |
op_source |
Journal of Marine Science and Engineering, Vol 10, Iss 1227, p 1227 (2022) |
op_relation |
https://www.mdpi.com/2077-1312/10/9/1227 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10091227 2077-1312 https://doaj.org/article/a1339c0c6b2d451faed7e0245578c7be |
op_doi |
https://doi.org/10.3390/jmse10091227 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
9 |
container_start_page |
1227 |
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1766379493025382400 |