‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae)
Humpback whales (Megaptera novaeangliae) exhibit a variety of foraging behaviours, but neither they nor any baleen whale are known to produce broadband clicks in association with feeding, as do many odontocetes. We recorded underwater behaviour of humpback whales in a northwest Atlantic feeding area...
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2391189 http://www.ncbi.nlm.nih.gov/pubmed/17686753 https://doi.org/10.1098/rsbl.2007.0281 |
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ftpubmed:oai:pubmedcentral.nih.gov:2391189 2023-05-15T15:36:55+02:00 ‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) Stimpert, Alison K Wiley, David N Au, Whitlow W.L Johnson, Mark P Arsenault, Roland 2007-08-07 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2391189 http://www.ncbi.nlm.nih.gov/pubmed/17686753 https://doi.org/10.1098/rsbl.2007.0281 en eng The Royal Society http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2391189 http://www.ncbi.nlm.nih.gov/pubmed/17686753 http://dx.doi.org/10.1098/rsbl.2007.0281 © 2007 The Royal Society Research Article Text 2007 ftpubmed https://doi.org/10.1098/rsbl.2007.0281 2013-09-01T22:36:33Z Humpback whales (Megaptera novaeangliae) exhibit a variety of foraging behaviours, but neither they nor any baleen whale are known to produce broadband clicks in association with feeding, as do many odontocetes. We recorded underwater behaviour of humpback whales in a northwest Atlantic feeding area using suction-cup attached, multi-sensor, acoustic tags (DTAGs). Here we describe the first recordings of click production associated with underwater lunges from baleen whales. Recordings of over 34 000 ‘megapclicks’ from two whales indicated relatively low received levels at the tag (between 143 and 154 dB re 1 μPa pp), most energy below 2 kHz, and interclick intervals often decreasing towards the end of click trains to form a buzz. All clicks were recorded during night-time hours. Sharp body rolls also occurred at the end of click bouts containing buzzes, suggesting feeding events. This acoustic behaviour seems to form part of a night-time feeding tactic for humpbacks and also expands the known acoustic repertoire of baleen whales in general. Text baleen whale baleen whales Megaptera novaeangliae Northwest Atlantic PubMed Central (PMC) Biology Letters 3 5 467 470 |
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Research Article Stimpert, Alison K Wiley, David N Au, Whitlow W.L Johnson, Mark P Arsenault, Roland ‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
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Research Article |
description |
Humpback whales (Megaptera novaeangliae) exhibit a variety of foraging behaviours, but neither they nor any baleen whale are known to produce broadband clicks in association with feeding, as do many odontocetes. We recorded underwater behaviour of humpback whales in a northwest Atlantic feeding area using suction-cup attached, multi-sensor, acoustic tags (DTAGs). Here we describe the first recordings of click production associated with underwater lunges from baleen whales. Recordings of over 34 000 ‘megapclicks’ from two whales indicated relatively low received levels at the tag (between 143 and 154 dB re 1 μPa pp), most energy below 2 kHz, and interclick intervals often decreasing towards the end of click trains to form a buzz. All clicks were recorded during night-time hours. Sharp body rolls also occurred at the end of click bouts containing buzzes, suggesting feeding events. This acoustic behaviour seems to form part of a night-time feeding tactic for humpbacks and also expands the known acoustic repertoire of baleen whales in general. |
format |
Text |
author |
Stimpert, Alison K Wiley, David N Au, Whitlow W.L Johnson, Mark P Arsenault, Roland |
author_facet |
Stimpert, Alison K Wiley, David N Au, Whitlow W.L Johnson, Mark P Arsenault, Roland |
author_sort |
Stimpert, Alison K |
title |
‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
title_short |
‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
title_full |
‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
title_fullStr |
‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
title_full_unstemmed |
‘Megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (Megaptera novaeangliae) |
title_sort |
‘megapclicks’: acoustic click trains and buzzes produced during night-time foraging of humpback whales (megaptera novaeangliae) |
publisher |
The Royal Society |
publishDate |
2007 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2391189 http://www.ncbi.nlm.nih.gov/pubmed/17686753 https://doi.org/10.1098/rsbl.2007.0281 |
genre |
baleen whale baleen whales Megaptera novaeangliae Northwest Atlantic |
genre_facet |
baleen whale baleen whales Megaptera novaeangliae Northwest Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2391189 http://www.ncbi.nlm.nih.gov/pubmed/17686753 http://dx.doi.org/10.1098/rsbl.2007.0281 |
op_rights |
© 2007 The Royal Society |
op_doi |
https://doi.org/10.1098/rsbl.2007.0281 |
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Biology Letters |
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3 |
container_issue |
5 |
container_start_page |
467 |
op_container_end_page |
470 |
_version_ |
1766367363936026624 |