Echolocation by the harbour porpoise: life in coastal waters
The harbor porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere. They are among the 11 species known to use high frequency sonar of relative narrow bandwidth. Their narrow biosonar beam helps isol...
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ftpubmed:oai:pubmedcentral.nih.gov:3625834 2023-05-15T16:33:24+02:00 Echolocation by the harbour porpoise: life in coastal waters Miller, Lee A. Wahlberg, Magnus 2013-04-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625834 http://www.ncbi.nlm.nih.gov/pubmed/23596420 https://doi.org/10.3389/fphys.2013.00052 en eng Frontiers Media S.A. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625834 http://www.ncbi.nlm.nih.gov/pubmed/23596420 http://dx.doi.org/10.3389/fphys.2013.00052 Copyright © Miller and Wahlberg. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc. CC-BY Physiology Text 2013 ftpubmed https://doi.org/10.3389/fphys.2013.00052 2013-09-04T22:26:26Z The harbor porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere. They are among the 11 species known to use high frequency sonar of relative narrow bandwidth. Their narrow biosonar beam helps isolate echoes from prey among those from unwanted items and noise. Obtaining echoes from small objects like net mesh, net floats, and small prey is facilitated by the very high peak frequency around 130 kHz with a wavelength of about 12 mm. We argue that such echolocation signals and narrow band auditory filters give the harbor porpoise a selective advantage in a coastal environment. Predation by killer whales and a minimum noise region in the ocean around 130 kHz may have provided selection pressures for using narrow bandwidth high frequency biosonar signals. Text Harbour porpoise toothed whales PubMed Central (PMC) Frontiers in Physiology 4 |
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Physiology |
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Physiology Miller, Lee A. Wahlberg, Magnus Echolocation by the harbour porpoise: life in coastal waters |
topic_facet |
Physiology |
description |
The harbor porpoise is one of the smallest and most widely spread of all toothed whales. They are found abundantly in coastal waters all around the northern hemisphere. They are among the 11 species known to use high frequency sonar of relative narrow bandwidth. Their narrow biosonar beam helps isolate echoes from prey among those from unwanted items and noise. Obtaining echoes from small objects like net mesh, net floats, and small prey is facilitated by the very high peak frequency around 130 kHz with a wavelength of about 12 mm. We argue that such echolocation signals and narrow band auditory filters give the harbor porpoise a selective advantage in a coastal environment. Predation by killer whales and a minimum noise region in the ocean around 130 kHz may have provided selection pressures for using narrow bandwidth high frequency biosonar signals. |
format |
Text |
author |
Miller, Lee A. Wahlberg, Magnus |
author_facet |
Miller, Lee A. Wahlberg, Magnus |
author_sort |
Miller, Lee A. |
title |
Echolocation by the harbour porpoise: life in coastal waters |
title_short |
Echolocation by the harbour porpoise: life in coastal waters |
title_full |
Echolocation by the harbour porpoise: life in coastal waters |
title_fullStr |
Echolocation by the harbour porpoise: life in coastal waters |
title_full_unstemmed |
Echolocation by the harbour porpoise: life in coastal waters |
title_sort |
echolocation by the harbour porpoise: life in coastal waters |
publisher |
Frontiers Media S.A. |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625834 http://www.ncbi.nlm.nih.gov/pubmed/23596420 https://doi.org/10.3389/fphys.2013.00052 |
genre |
Harbour porpoise toothed whales |
genre_facet |
Harbour porpoise toothed whales |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3625834 http://www.ncbi.nlm.nih.gov/pubmed/23596420 http://dx.doi.org/10.3389/fphys.2013.00052 |
op_rights |
Copyright © Miller and Wahlberg. http://creativecommons.org/licenses/by/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in other forums, provided the original authors and source are credited and subject to any copyright notices concerning any third-party graphics etc. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fphys.2013.00052 |
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Frontiers in Physiology |
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4 |
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1766023085204439040 |