The Comparative Morphology of Pit Organs in Elasmobranchs

Peach, M. B. and Marshall, N. J. (2009) The Comparative Morphology of Pit Organs in Elasmobranchs. Journal of Morphology, 270 6: 688-701. doi:10.1002/jmor.10715


Author Peach, M. B.
Marshall, N. J.
Title The Comparative Morphology of Pit Organs in Elasmobranchs
Journal name Journal of Morphology   Check publisher's open access policy
ISSN 0362-2525
Publication date 2009-01-01
Year available 2009
Sub-type Article (original research)
DOI 10.1002/jmor.10715
Open Access Status
Volume 270
Issue 6
Start page 688
End page 701
Total pages 14
Editor F. W. Harrison
Place of publication United States
Publisher John Wiley & Sons, Inc
Language eng
Subject C1
920106 Endocrine Organs and Diseases (excl. Diabetes)
830102 Aquaculture Fin Fish (excl. Tuna)
060805 Animal Neurobiology
060205 Marine and Estuarine Ecology (incl. Marine Ichthyology)
040501 Biological Oceanography
Abstract The pit organs of elasmobranchs (sharks, skates and rays) are free neuromasts of the mechanosensory lateral line system. Pit organs, however, appear to have some structural differences from the free neuromasts of bony fishes and amphibians. In this study, the morphology of pit organs was investigated by scanning electron microscopy in six shark and three ray species. In each species, pit organs contained typical lateral line hair cells with apical stereovilli of different lengths arranged in an "organ-pipe" configuration. Supporting cells also bore numerous apical microvilli taller than those observed in other vertebrate lateral line organs. Pit organs were either covered by overlapping denticles, located in open grooves bordered by denticles, or in grooves without associated denticles. The possible functional implications of these morphological features, including modification of water flow and sensory filtering properties, are discussed. J. Morphol. 2009. (c) 2009 Wiley-Liss, Inc.
Keyword Lateral Line
shark
elasmobranch
pit organ
neuromast
sensory system
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Biomedical Sciences Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 12 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 11 times in Scopus Article | Citations
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Created: Sun, 19 Apr 2009, 21:38:09 EST by Shirley Rey on behalf of School of Biomedical Sciences