Extreme diving of beaked whales
Sound-and-orientation recording tags (DTAGs) were used to study 10 beaked whales of two poorly known species, Ziphius cavirostris (Zc) and Mesoplodon densirostris (Md). Acoustic behaviour in the deep foraging dives performed by both species (Zc: 28 dives by seven individuals; Md: 16 dives by three i...
Published in: | Journal of Experimental Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2006
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/extreme-diving-of-beaked-whales(383720f9-98ab-4f07-8448-b4b8e1ee3a78).html https://doi.org/10.1242/jeb.02505 |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/383720f9-98ab-4f07-8448-b4b8e1ee3a78 2024-06-23T07:52:30+00:00 Extreme diving of beaked whales Tyack, Peter L. Johnson, Mark Soto, Natacha Aguilar Sturlese, Albert Madsen, Peter T. 2006-11-01 https://research-portal.st-andrews.ac.uk/en/researchoutput/extreme-diving-of-beaked-whales(383720f9-98ab-4f07-8448-b4b8e1ee3a78).html https://doi.org/10.1242/jeb.02505 eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/extreme-diving-of-beaked-whales(383720f9-98ab-4f07-8448-b4b8e1ee3a78).html info:eu-repo/semantics/restrictedAccess Tyack , P L , Johnson , M , Soto , N A , Sturlese , A & Madsen , P T 2006 , ' Extreme diving of beaked whales ' , Journal of Experimental Biology , vol. 209 , no. 21 , pp. 4238-4253 . https://doi.org/10.1242/jeb.02505 beaked whale Ziphius cavirostris Mesoplodon densirostris diving foraging aerobic dive limit NORTHERN ELEPHANT SEALS GAS-BUBBLE LESIONS BREATH-HOLD DIVES WEDDELL SEALS ZIPHIUS-CAVIROSTRIS OPTIMAL ALLOCATION MIROUNGA-ANGUSTIROSTRIS MESOPLODON-DENSIROSTRIS PHYSETER-MACROCEPHALUS NITROGEN TENSIONS article 2006 ftunstandrewcris https://doi.org/10.1242/jeb.02505 2024-06-13T00:32:44Z Sound-and-orientation recording tags (DTAGs) were used to study 10 beaked whales of two poorly known species, Ziphius cavirostris (Zc) and Mesoplodon densirostris (Md). Acoustic behaviour in the deep foraging dives performed by both species (Zc: 28 dives by seven individuals; Md: 16 dives by three individuals) shows that they hunt by echolocation in deep water between 222 and 1885 m, attempting to capture about 30 prey/dive. This food source is so deep that the average foraging dives were deeper ( Zc: 1070 m; Md: 835 m) and longer (Zc: 58 min; Md: 47 min) than reported for any other air-breathing species. A series of shallower dives, containing no indications of foraging, followed most deep foraging dives. The average interval between deep foraging dives was 63 min for Zc and 92 min for Md. This long an interval may be required for beaked whales to recover from an oxygen debt accrued in the deep foraging dives, which last about twice the estimated aerobic dive limit. Recent reports of gas emboli in beaked whales stranded during naval sonar exercises have led to the hypothesis that their deep-diving may make them especially vulnerable to decompression. Using current models of breath-hold diving, we infer that their natural diving behaviour is inconsistent with known problems of acute nitrogen supersaturation and embolism. If the assumptions of these models are correct for beaked whales, then possible decompression problems are more likely to result from an abnormal behavioural response to sonar. Article in Journal/Newspaper Elephant Seals Physeter macrocephalus Weddell Seals University of St Andrews: Research Portal Weddell Journal of Experimental Biology 209 21 4238 4253 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
beaked whale Ziphius cavirostris Mesoplodon densirostris diving foraging aerobic dive limit NORTHERN ELEPHANT SEALS GAS-BUBBLE LESIONS BREATH-HOLD DIVES WEDDELL SEALS ZIPHIUS-CAVIROSTRIS OPTIMAL ALLOCATION MIROUNGA-ANGUSTIROSTRIS MESOPLODON-DENSIROSTRIS PHYSETER-MACROCEPHALUS NITROGEN TENSIONS |
spellingShingle |
beaked whale Ziphius cavirostris Mesoplodon densirostris diving foraging aerobic dive limit NORTHERN ELEPHANT SEALS GAS-BUBBLE LESIONS BREATH-HOLD DIVES WEDDELL SEALS ZIPHIUS-CAVIROSTRIS OPTIMAL ALLOCATION MIROUNGA-ANGUSTIROSTRIS MESOPLODON-DENSIROSTRIS PHYSETER-MACROCEPHALUS NITROGEN TENSIONS Tyack, Peter L. Johnson, Mark Soto, Natacha Aguilar Sturlese, Albert Madsen, Peter T. Extreme diving of beaked whales |
topic_facet |
beaked whale Ziphius cavirostris Mesoplodon densirostris diving foraging aerobic dive limit NORTHERN ELEPHANT SEALS GAS-BUBBLE LESIONS BREATH-HOLD DIVES WEDDELL SEALS ZIPHIUS-CAVIROSTRIS OPTIMAL ALLOCATION MIROUNGA-ANGUSTIROSTRIS MESOPLODON-DENSIROSTRIS PHYSETER-MACROCEPHALUS NITROGEN TENSIONS |
description |
Sound-and-orientation recording tags (DTAGs) were used to study 10 beaked whales of two poorly known species, Ziphius cavirostris (Zc) and Mesoplodon densirostris (Md). Acoustic behaviour in the deep foraging dives performed by both species (Zc: 28 dives by seven individuals; Md: 16 dives by three individuals) shows that they hunt by echolocation in deep water between 222 and 1885 m, attempting to capture about 30 prey/dive. This food source is so deep that the average foraging dives were deeper ( Zc: 1070 m; Md: 835 m) and longer (Zc: 58 min; Md: 47 min) than reported for any other air-breathing species. A series of shallower dives, containing no indications of foraging, followed most deep foraging dives. The average interval between deep foraging dives was 63 min for Zc and 92 min for Md. This long an interval may be required for beaked whales to recover from an oxygen debt accrued in the deep foraging dives, which last about twice the estimated aerobic dive limit. Recent reports of gas emboli in beaked whales stranded during naval sonar exercises have led to the hypothesis that their deep-diving may make them especially vulnerable to decompression. Using current models of breath-hold diving, we infer that their natural diving behaviour is inconsistent with known problems of acute nitrogen supersaturation and embolism. If the assumptions of these models are correct for beaked whales, then possible decompression problems are more likely to result from an abnormal behavioural response to sonar. |
format |
Article in Journal/Newspaper |
author |
Tyack, Peter L. Johnson, Mark Soto, Natacha Aguilar Sturlese, Albert Madsen, Peter T. |
author_facet |
Tyack, Peter L. Johnson, Mark Soto, Natacha Aguilar Sturlese, Albert Madsen, Peter T. |
author_sort |
Tyack, Peter L. |
title |
Extreme diving of beaked whales |
title_short |
Extreme diving of beaked whales |
title_full |
Extreme diving of beaked whales |
title_fullStr |
Extreme diving of beaked whales |
title_full_unstemmed |
Extreme diving of beaked whales |
title_sort |
extreme diving of beaked whales |
publishDate |
2006 |
url |
https://research-portal.st-andrews.ac.uk/en/researchoutput/extreme-diving-of-beaked-whales(383720f9-98ab-4f07-8448-b4b8e1ee3a78).html https://doi.org/10.1242/jeb.02505 |
geographic |
Weddell |
geographic_facet |
Weddell |
genre |
Elephant Seals Physeter macrocephalus Weddell Seals |
genre_facet |
Elephant Seals Physeter macrocephalus Weddell Seals |
op_source |
Tyack , P L , Johnson , M , Soto , N A , Sturlese , A & Madsen , P T 2006 , ' Extreme diving of beaked whales ' , Journal of Experimental Biology , vol. 209 , no. 21 , pp. 4238-4253 . https://doi.org/10.1242/jeb.02505 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/extreme-diving-of-beaked-whales(383720f9-98ab-4f07-8448-b4b8e1ee3a78).html |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1242/jeb.02505 |
container_title |
Journal of Experimental Biology |
container_volume |
209 |
container_issue |
21 |
container_start_page |
4238 |
op_container_end_page |
4253 |
_version_ |
1802643808541736960 |