Imperial College London
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DrRichardAbel

Faculty of Medicine, Department of Surgery & Cancer

Senior Lecturer
 
 
 
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Contact

 

richard.abel

 
 
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Location

 

204Sir Michael Uren HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Howard:2013:10.1002/jmor.20156,
author = {Howard, LE and Holmes, WM and Ferrando, S and Maclaine, JS and Kelsh, RN and Ramsey, A and Abel, RL and Cox, JPL},
doi = {10.1002/jmor.20156},
journal = {Journal of Morphology},
pages = {987--1009},
title = {Functional nasal morphology of chimaerid fishes},
url = {http://dx.doi.org/10.1002/jmor.20156},
volume = {274},
year = {2013}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - <jats:title>ABSTRACT</jats:title><jats:p>Holocephalans (chimaeras) are a group of marine fishes comprising three families: the Callorhinchidae (callorhinchid fishes), the Rhinochimaeridae (rhinochimaerid fishes) and the Chimaeridae (chimaerid fishes). We have used Xray microcomputed tomography and magnetic resonance imaging to characterise in detail the nasal anatomy of three species of chimaerid fishes: <jats:italic>Chimaera monstrosa</jats:italic>, <jats:italic>C. phantasma</jats:italic> and <jats:italic>Hydrolagus colliei</jats:italic>. We have shown that the nasal chamber of these three species is linked to the external environment by an incurrent channel and to the oral cavity by an excurrent channel via an oral groove. A protrusion of variable morphology is present on the medial wall of the incurrent channel in all three species, but is absent in members of the two other holocephalan families that we inspected. A third nasal channel, the lateral channel, functionally connects the incurrent nostril to the oral cavity, bypassing the nasal chamber. From anatomical reconstructions, we have proposed a model for the circulation of water, and therefore the transport of odorant, in the chimaerid nasal region. In this model, water could flow through the nasal region via the nasal chamber or the lateral channel. In either case, the direction of flow could be reversed. Circulation through the entire nasal region is likely to be driven primarily by the respiratory pump. We have identified several anatomical features that may segregate, distribute, facilitate and regulate flow in the nasal region and have considered the consequences of flow reversal. The nonsensory cilia lining the olfactory sensory channels appear to be mucuspropelling, suggesting that these cilia have a common protective role in cartilaginous fishes (sharks, rays and chimaeras). The nasal region of chimaerid fishes shows at least two adaptations t
AU  - Howard,LE
AU  - Holmes,WM
AU  - Ferrando,S
AU  - Maclaine,JS
AU  - Kelsh,RN
AU  - Ramsey,A
AU  - Abel,RL
AU  - Cox,JPL
DO  - 10.1002/jmor.20156
EP  - 1009
PY  - 2013///
SN  - 0362-2525
SP  - 987
TI  - Functional nasal morphology of chimaerid fishes
T2  - Journal of Morphology
UR  - http://dx.doi.org/10.1002/jmor.20156
VL  - 274
ER  -
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