A comparative analysis of marine mammal tracheas
Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Company of Biologists for personal use, not for redistribution. The definitive version was published in Journal of Experimental Biology 217 (2014): 1154-1166, doi:10.1242/jeb.0931...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/6637 2023-05-15T16:33:10+02:00 A comparative analysis of marine mammal tracheas Moore, Colby D. Moore, Michael J. Trumble, Stephen J. Niemeyer, Misty E. Lentell, Betty J. McLellan, William A. Costidis, Alexander M. Fahlman, Andreas 2013-11 application/pdf https://hdl.handle.net/1912/6637 en_US eng https://doi.org/10.1242/jeb.093146 https://hdl.handle.net/1912/6637 Diving Lung collapse Pressure-volume Compliance Diving physiology Alveolar compression Preprint 2013 ftwhoas https://doi.org/10.1242/jeb.093146 2022-05-28T22:59:05Z Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Company of Biologists for personal use, not for redistribution. The definitive version was published in Journal of Experimental Biology 217 (2014): 1154-1166, doi:10.1242/jeb.093146. In 1940, Scholander suggested that stiffened upper airways remained open and received air from highly compressible alveoli during marine mammal diving. There are little data available on the structural and functional adaptations of the marine mammal respiratory system. The aim of this research was to investigate the anatomical (gross) and structural (compliance) characteristics of excised marine mammal tracheas. Here we defined different types of tracheal structures, categorizing pinniped tracheas by varying degrees of continuity of cartilage (categories 1-4) and cetacean tracheas by varying compliance values (categories 5A and 5B). Some tracheas fell into more than one category, along their length, for example, the harbor seal (Phoca vitulina) demonstrated complete rings cranially, and as the trachea progressed caudally tracheal rings changed morphology. Dolphins and porpoises had less stiff, more compliant spiraling rings while beaked whales had very stiff, less compliant spiraling rings. The pressure-volume (P-V) relationships of isolated tracheas from different species were measured to assess structural differences between species. These findings lend evidence for pressure-induced collapse and re-inflation of lungs, perhaps influencing variability in dive depth or ventilation rates of the species investigated. This project was supported by a grant from the Office of Naval Research (award number N00014-10-1-0059). 2014-12-05 Report harbor seal Phoca vitulina Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Scholander ENVELOPE(-66.954,-66.954,-66.365,-66.365) Journal of Experimental Biology |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Diving Lung collapse Pressure-volume Compliance Diving physiology Alveolar compression |
spellingShingle |
Diving Lung collapse Pressure-volume Compliance Diving physiology Alveolar compression Moore, Colby D. Moore, Michael J. Trumble, Stephen J. Niemeyer, Misty E. Lentell, Betty J. McLellan, William A. Costidis, Alexander M. Fahlman, Andreas A comparative analysis of marine mammal tracheas |
topic_facet |
Diving Lung collapse Pressure-volume Compliance Diving physiology Alveolar compression |
description |
Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Company of Biologists for personal use, not for redistribution. The definitive version was published in Journal of Experimental Biology 217 (2014): 1154-1166, doi:10.1242/jeb.093146. In 1940, Scholander suggested that stiffened upper airways remained open and received air from highly compressible alveoli during marine mammal diving. There are little data available on the structural and functional adaptations of the marine mammal respiratory system. The aim of this research was to investigate the anatomical (gross) and structural (compliance) characteristics of excised marine mammal tracheas. Here we defined different types of tracheal structures, categorizing pinniped tracheas by varying degrees of continuity of cartilage (categories 1-4) and cetacean tracheas by varying compliance values (categories 5A and 5B). Some tracheas fell into more than one category, along their length, for example, the harbor seal (Phoca vitulina) demonstrated complete rings cranially, and as the trachea progressed caudally tracheal rings changed morphology. Dolphins and porpoises had less stiff, more compliant spiraling rings while beaked whales had very stiff, less compliant spiraling rings. The pressure-volume (P-V) relationships of isolated tracheas from different species were measured to assess structural differences between species. These findings lend evidence for pressure-induced collapse and re-inflation of lungs, perhaps influencing variability in dive depth or ventilation rates of the species investigated. This project was supported by a grant from the Office of Naval Research (award number N00014-10-1-0059). 2014-12-05 |
format |
Report |
author |
Moore, Colby D. Moore, Michael J. Trumble, Stephen J. Niemeyer, Misty E. Lentell, Betty J. McLellan, William A. Costidis, Alexander M. Fahlman, Andreas |
author_facet |
Moore, Colby D. Moore, Michael J. Trumble, Stephen J. Niemeyer, Misty E. Lentell, Betty J. McLellan, William A. Costidis, Alexander M. Fahlman, Andreas |
author_sort |
Moore, Colby D. |
title |
A comparative analysis of marine mammal tracheas |
title_short |
A comparative analysis of marine mammal tracheas |
title_full |
A comparative analysis of marine mammal tracheas |
title_fullStr |
A comparative analysis of marine mammal tracheas |
title_full_unstemmed |
A comparative analysis of marine mammal tracheas |
title_sort |
comparative analysis of marine mammal tracheas |
publishDate |
2013 |
url |
https://hdl.handle.net/1912/6637 |
long_lat |
ENVELOPE(-66.954,-66.954,-66.365,-66.365) |
geographic |
Scholander |
geographic_facet |
Scholander |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_relation |
https://doi.org/10.1242/jeb.093146 https://hdl.handle.net/1912/6637 |
op_doi |
https://doi.org/10.1242/jeb.093146 |
container_title |
Journal of Experimental Biology |
_version_ |
1766022872759795712 |