Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena
Abstract Nonpolar lipids and sound velocity at different distances from the skin surface within a sample of pilot whale melon were studied. Thin layer chromatography, sensitive radioisotopic methods, and an ultrasonic echo scanner were used. Wax esters had a maximum concentration at 11–12 cm from th...
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Online Access: | http://dx.doi.org/10.1007/bf02532666 https://onlinelibrary.wiley.com/doi/full/10.1007/BF02532666 |
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crwiley:10.1007/bf02532666 2024-06-02T08:11:24+00:00 Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena Blomberg, Jonas Lindholm, Lars‐Erik 1976 http://dx.doi.org/10.1007/bf02532666 https://onlinelibrary.wiley.com/doi/full/10.1007/BF02532666 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Lipids volume 11, issue 2, page 153-156 ISSN 0024-4201 1558-9307 journal-article 1976 crwiley https://doi.org/10.1007/bf02532666 2024-05-03T11:29:13Z Abstract Nonpolar lipids and sound velocity at different distances from the skin surface within a sample of pilot whale melon were studied. Thin layer chromatography, sensitive radioisotopic methods, and an ultrasonic echo scanner were used. Wax esters had a maximum concentration at 11–12 cm from the skin surface. Non‐ and monoisovalero triglycerides both exhibited a minimum at 8–10 cm, whereas the diisovalero species increased steadily from the skin surface towards the center of the pilot whale head. A minimum of sound velocity, ca. 1340 m/s, was found at 9–11 cm, thus coinciding with a region rich in isovaleric acid esterified in wax and diisovalero triglycerides. These findings are compatible with predictions based on the known correlations between lipid structure and sound velocity. Consequently, additional evidence for refraction of sound in pilot whale melon is presented. This is important in understanding the system of echolocation of toothed whales. Article in Journal/Newspaper North Atlantic toothed whales Wiley Online Library Lipids 11 2 153 156 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Nonpolar lipids and sound velocity at different distances from the skin surface within a sample of pilot whale melon were studied. Thin layer chromatography, sensitive radioisotopic methods, and an ultrasonic echo scanner were used. Wax esters had a maximum concentration at 11–12 cm from the skin surface. Non‐ and monoisovalero triglycerides both exhibited a minimum at 8–10 cm, whereas the diisovalero species increased steadily from the skin surface towards the center of the pilot whale head. A minimum of sound velocity, ca. 1340 m/s, was found at 9–11 cm, thus coinciding with a region rich in isovaleric acid esterified in wax and diisovalero triglycerides. These findings are compatible with predictions based on the known correlations between lipid structure and sound velocity. Consequently, additional evidence for refraction of sound in pilot whale melon is presented. This is important in understanding the system of echolocation of toothed whales. |
format |
Article in Journal/Newspaper |
author |
Blomberg, Jonas Lindholm, Lars‐Erik |
spellingShingle |
Blomberg, Jonas Lindholm, Lars‐Erik Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
author_facet |
Blomberg, Jonas Lindholm, Lars‐Erik |
author_sort |
Blomberg, Jonas |
title |
Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
title_short |
Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
title_full |
Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
title_fullStr |
Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
title_full_unstemmed |
Variations in lipid composition and sound velocity in melon from the North Atlantic pilot whale, Globicephala melaena melaena |
title_sort |
variations in lipid composition and sound velocity in melon from the north atlantic pilot whale, globicephala melaena melaena |
publisher |
Wiley |
publishDate |
1976 |
url |
http://dx.doi.org/10.1007/bf02532666 https://onlinelibrary.wiley.com/doi/full/10.1007/BF02532666 |
genre |
North Atlantic toothed whales |
genre_facet |
North Atlantic toothed whales |
op_source |
Lipids volume 11, issue 2, page 153-156 ISSN 0024-4201 1558-9307 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1007/bf02532666 |
container_title |
Lipids |
container_volume |
11 |
container_issue |
2 |
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153 |
op_container_end_page |
156 |
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1800757528982716416 |