Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina)
Deuterium oxide dilutions have long been the accepted means for collecting body condition measures on phocids. Blubber depth has become more frequently used as an indicator of health. This project represents the first in-depth examination of blubber depth measured via ultrasound as an indicator of b...
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2015
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fthighwire:oai:open-archive.highwire.org:jmammal:96/2/361 2023-05-15T17:58:51+02:00 Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) Polasek, Lori Karpovich, Shawna Prewitt, Jill Goertz, Carrie Conlon, Suzanne Hennen, Daniel 2015-04-01 00:00:00.0 text/html http://jmammal.oxfordjournals.org/cgi/content/short/96/2/361 https://doi.org/10.1093/jmammal/gyv037 en eng Oxford University Press http://jmammal.oxfordjournals.org/cgi/content/short/96/2/361 http://dx.doi.org/10.1093/jmammal/gyv037 Copyright (C) 2015, Oxford University Press Feature Article TEXT 2015 fthighwire https://doi.org/10.1093/jmammal/gyv037 2016-11-16T18:39:44Z Deuterium oxide dilutions have long been the accepted means for collecting body condition measures on phocids. Blubber depth has become more frequently used as an indicator of health. This project represents the first in-depth examination of blubber depth measured via ultrasound as an indicator of body condition in a single species. We concurrently measured blubber depth via imaging ultrasound at 8 locations, fat and protein mass via deuterium oxide dilutions, morphometrics, and mass from wild, captive, and rehabilitating harbor seals ( Phoca vitulina n = 89). Seals ranged from premature to adult. By using body mass and blubber depth measurements we are able to predict fat and lean mass in an independent set of 187 animals (adjusted R 2 = 0.77 and 0.96, respectively). Although most of the ultrasound sites produced strong correlates to fat mass, an additive model incorporating body mass, 1 lateral site (L2), and 1 dorsal site (D4) provided the tightest fit. Text Phoca vitulina HighWire Press (Stanford University) Journal of Mammalogy 96 2 361 367 |
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HighWire Press (Stanford University) |
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language |
English |
topic |
Feature Article |
spellingShingle |
Feature Article Polasek, Lori Karpovich, Shawna Prewitt, Jill Goertz, Carrie Conlon, Suzanne Hennen, Daniel Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
topic_facet |
Feature Article |
description |
Deuterium oxide dilutions have long been the accepted means for collecting body condition measures on phocids. Blubber depth has become more frequently used as an indicator of health. This project represents the first in-depth examination of blubber depth measured via ultrasound as an indicator of body condition in a single species. We concurrently measured blubber depth via imaging ultrasound at 8 locations, fat and protein mass via deuterium oxide dilutions, morphometrics, and mass from wild, captive, and rehabilitating harbor seals ( Phoca vitulina n = 89). Seals ranged from premature to adult. By using body mass and blubber depth measurements we are able to predict fat and lean mass in an independent set of 187 animals (adjusted R 2 = 0.77 and 0.96, respectively). Although most of the ultrasound sites produced strong correlates to fat mass, an additive model incorporating body mass, 1 lateral site (L2), and 1 dorsal site (D4) provided the tightest fit. |
format |
Text |
author |
Polasek, Lori Karpovich, Shawna Prewitt, Jill Goertz, Carrie Conlon, Suzanne Hennen, Daniel |
author_facet |
Polasek, Lori Karpovich, Shawna Prewitt, Jill Goertz, Carrie Conlon, Suzanne Hennen, Daniel |
author_sort |
Polasek, Lori |
title |
Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
title_short |
Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
title_full |
Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
title_fullStr |
Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
title_full_unstemmed |
Ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (Phoca vitulina) |
title_sort |
ultrasound as a non-invasive alternative for deuterium oxide dilution measurements in harbor seals (phoca vitulina) |
publisher |
Oxford University Press |
publishDate |
2015 |
url |
http://jmammal.oxfordjournals.org/cgi/content/short/96/2/361 https://doi.org/10.1093/jmammal/gyv037 |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_relation |
http://jmammal.oxfordjournals.org/cgi/content/short/96/2/361 http://dx.doi.org/10.1093/jmammal/gyv037 |
op_rights |
Copyright (C) 2015, Oxford University Press |
op_doi |
https://doi.org/10.1093/jmammal/gyv037 |
container_title |
Journal of Mammalogy |
container_volume |
96 |
container_issue |
2 |
container_start_page |
361 |
op_container_end_page |
367 |
_version_ |
1766167573943025664 |