Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus)
The Indian Ocean and Atlantic bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) are among the best studied echolocating toothed whales. However, almost all echolocation studies on bottlenose dolphins have been made with captive animals, and the echolocation signals of free-ranging animal...
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ftmurdochunivall:oai:alma.61MUN_INST:11135601510007891 2024-09-09T20:11:51+00:00 Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) Wahlberg, M. Jensen, F.H. Aguilar Soto, N. Beedholm, K. Bejder, L. Oliveira, C. Rasmussen, M. Simon, M. Villadsgaard, A. Madsen, P.T. 2011 pdf https://doi.org/10.1121/1.3624822 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Source-parameters-of-echolocation-clicks-from/991005541808607891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135601500007891/13136829110007891 eng eng Acoustical Society of America ispartof: The Journal of the Acoustical Society of America spage 2263 epage 2274 issue 4 vol 130 doi:10.1121/1.3624822 WOS:000295799400076 00014966 http://dx.doi.org/10.1121/1.3624822 991005541808607891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Source-parameters-of-echolocation-clicks-from/991005541808607891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135601500007891/13136829110007891 alma:61MUN_INST/bibs/991005541808607891 © 2011 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. Open text Article 2011 ftmurdochunivall https://doi.org/10.1121/1.3624822 2024-08-15T00:52:50Z The Indian Ocean and Atlantic bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) are among the best studied echolocating toothed whales. However, almost all echolocation studies on bottlenose dolphins have been made with captive animals, and the echolocation signals of free-ranging animals have not been quantified. Here, biosonar source parameters from wild T. aduncus and T. truncatus were measured with linear three- and four-hydrophone arrays in four geographic locations. The two species had similar source parameters, with source levels of 177–228 dB re 1 μPa peak to peak, click durations of 8–72 μs, centroid frequencies of 33–109 kHz and rms bandwidths between 23 and 54 kHz. T. aduncus clicks had a higher frequency emphasis than T. truncatus. The transmission directionality index was up to 3 dB higher for T. aduncus (29 dB) as compared to T. truncatus (26 dB). The high directionality of T. aduncus does not appear to be only a physical consequence of a higher frequency emphasis in clicks, but may also be caused by differences in the internal properties of the sound production system. Article in Journal/Newspaper toothed whales Murdoch University Research Portal Indian The Journal of the Acoustical Society of America 130 4 2263 2274 |
institution |
Open Polar |
collection |
Murdoch University Research Portal |
op_collection_id |
ftmurdochunivall |
language |
English |
description |
The Indian Ocean and Atlantic bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) are among the best studied echolocating toothed whales. However, almost all echolocation studies on bottlenose dolphins have been made with captive animals, and the echolocation signals of free-ranging animals have not been quantified. Here, biosonar source parameters from wild T. aduncus and T. truncatus were measured with linear three- and four-hydrophone arrays in four geographic locations. The two species had similar source parameters, with source levels of 177–228 dB re 1 μPa peak to peak, click durations of 8–72 μs, centroid frequencies of 33–109 kHz and rms bandwidths between 23 and 54 kHz. T. aduncus clicks had a higher frequency emphasis than T. truncatus. The transmission directionality index was up to 3 dB higher for T. aduncus (29 dB) as compared to T. truncatus (26 dB). The high directionality of T. aduncus does not appear to be only a physical consequence of a higher frequency emphasis in clicks, but may also be caused by differences in the internal properties of the sound production system. |
format |
Article in Journal/Newspaper |
author |
Wahlberg, M. Jensen, F.H. Aguilar Soto, N. Beedholm, K. Bejder, L. Oliveira, C. Rasmussen, M. Simon, M. Villadsgaard, A. Madsen, P.T. |
spellingShingle |
Wahlberg, M. Jensen, F.H. Aguilar Soto, N. Beedholm, K. Bejder, L. Oliveira, C. Rasmussen, M. Simon, M. Villadsgaard, A. Madsen, P.T. Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
author_facet |
Wahlberg, M. Jensen, F.H. Aguilar Soto, N. Beedholm, K. Bejder, L. Oliveira, C. Rasmussen, M. Simon, M. Villadsgaard, A. Madsen, P.T. |
author_sort |
Wahlberg, M. |
title |
Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
title_short |
Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
title_full |
Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
title_fullStr |
Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
title_full_unstemmed |
Source parameters of echolocation clicks from wild bottlenose dolphins (Tursiops aduncus and Tursiops truncatus) |
title_sort |
source parameters of echolocation clicks from wild bottlenose dolphins (tursiops aduncus and tursiops truncatus) |
publisher |
Acoustical Society of America |
publishDate |
2011 |
url |
https://doi.org/10.1121/1.3624822 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Source-parameters-of-echolocation-clicks-from/991005541808607891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135601500007891/13136829110007891 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
toothed whales |
genre_facet |
toothed whales |
op_relation |
ispartof: The Journal of the Acoustical Society of America spage 2263 epage 2274 issue 4 vol 130 doi:10.1121/1.3624822 WOS:000295799400076 00014966 http://dx.doi.org/10.1121/1.3624822 991005541808607891 https://researchportal.murdoch.edu.au/esploro/outputs/journalArticle/Source-parameters-of-echolocation-clicks-from/991005541808607891 https://researchportal.murdoch.edu.au/view/delivery/61MUN_INST/12135601500007891/13136829110007891 alma:61MUN_INST/bibs/991005541808607891 |
op_rights |
© 2011 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. Open |
op_doi |
https://doi.org/10.1121/1.3624822 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
130 |
container_issue |
4 |
container_start_page |
2263 |
op_container_end_page |
2274 |
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1809946452688896000 |