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Hyoid morphology and movements relative to abducting forces feeding in Astatotilapia-elegans (Teleostei, Cichlidae)

Peter Aerts UGent (1991) JOURNAL OF MORPHOLOGY. 208(3). p.323-345
abstract
In fishes, the abducting hyoid bars push the suspensoria outwards. This force transmission is generally assumed to be important during fast suction feeding (strenuous activity). In Astatotilapia elegans the hyoid symphysis can best be modelled as an oblique hinge. The relevance of this hinge morphology on the force transmission has been studied by means of a three-dimensional (3D) model simulating the displacements of the hyoid-suspensorial system. It appears that the transmission force factor increases throughout feeding in the case of the hinge model. Reduction of the hyoid symphysis to a point articulation (as was done formerly in attempts to quantify the transmission by means of planar models) suggests an unfavourable decline of the transmission force to zero during maximal mouth expansion. The angle between the hinge axis of the symphysis and the longitudinal axis of the hyoid bar is 45-degrees. Such a configuration allows for a maximal increase in the volume of the buccal cavity for suction. This functional aspect, together with the apparent maximization of the force transmission during feeding, suggests that constructional and neuromotoric factors have been improved during the evolutionary development of the hyoid-suspensorial system.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
TREWAVAS 1933 TELEOSTEI, PREY CAPTURE, HEAD, MODEL, PERCIDAE, APPARATUS, FISHES, LIGAMENTS, JOINTS
journal title
JOURNAL OF MORPHOLOGY
J. Morphol.
volume
208
issue
3
pages
323 - 345
Web of Science type
Article
ISSN
0362-2525
DOI
10.1002/jmor.1052080308
language
English
UGent publication?
yes
classification
A1
id
222266
handle
http://hdl.handle.net/1854/LU-222266
date created
2004-05-24 13:24:00
date last changed
2016-12-19 15:38:50
@article{222266,
  abstract     = {In fishes, the abducting hyoid bars push the suspensoria outwards. This force transmission is generally assumed to be important during fast suction feeding (strenuous activity). In Astatotilapia elegans the hyoid symphysis can best be modelled as an oblique hinge. The relevance of this hinge morphology on the force transmission has been studied by means of a three-dimensional (3D) model simulating the displacements of the hyoid-suspensorial system. It appears that the transmission force factor increases throughout feeding in the case of the hinge model. Reduction of the hyoid symphysis to a point articulation (as was done formerly in attempts to quantify the transmission by means of planar models) suggests an unfavourable decline of the transmission force to zero during maximal mouth expansion. The angle between the hinge axis of the symphysis and the longitudinal axis of the hyoid bar is 45-degrees. Such a configuration allows for a maximal increase in the volume of the buccal cavity for suction. This functional aspect, together with the apparent maximization of the force transmission during feeding, suggests that constructional and neuromotoric factors have been improved during the evolutionary development of the hyoid-suspensorial system.},
  author       = {Aerts, Peter},
  issn         = {0362-2525},
  journal      = {JOURNAL OF MORPHOLOGY},
  keyword      = {TREWAVAS 1933 TELEOSTEI,PREY CAPTURE,HEAD,MODEL,PERCIDAE,APPARATUS,FISHES,LIGAMENTS,JOINTS},
  language     = {eng},
  number       = {3},
  pages        = {323--345},
  title        = {Hyoid morphology and movements relative to abducting forces feeding in Astatotilapia-elegans (Teleostei, Cichlidae)},
  url          = {http://dx.doi.org/10.1002/jmor.1052080308},
  volume       = {208},
  year         = {1991},
}

Chicago
Aerts, Peter. 1991. “Hyoid Morphology and Movements Relative to Abducting Forces Feeding in Astatotilapia-elegans (Teleostei, Cichlidae).” Journal of Morphology 208 (3): 323–345.
APA
Aerts, Peter. (1991). Hyoid morphology and movements relative to abducting forces feeding in Astatotilapia-elegans (Teleostei, Cichlidae). JOURNAL OF MORPHOLOGY, 208(3), 323–345.
Vancouver
1.
Aerts P. Hyoid morphology and movements relative to abducting forces feeding in Astatotilapia-elegans (Teleostei, Cichlidae). JOURNAL OF MORPHOLOGY. 1991;208(3):323–45.
MLA
Aerts, Peter. “Hyoid Morphology and Movements Relative to Abducting Forces Feeding in Astatotilapia-elegans (Teleostei, Cichlidae).” JOURNAL OF MORPHOLOGY 208.3 (1991): 323–345. Print.