Document Detail


Flow field, swimming velocity and boundary layer: parameters which affect the stimulus for the lateral line organ in blind fish.
MedLine Citation:
PMID:  3385668     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The data presented support the hypothesis that the flow field supplies the stimulus to the lateral line organ (LLO) in blind cave fish (Anoptichthys jordani). Two basic predictions from the theoretical analysis of the flow field were confirmed: (i) individual blind cave fish prefer particular swimming velocities, (ii) the velocity preferred depends on the cross-sectional area (CSA) of the fish, i.e. the smaller the CSA the higher the swimming velocity. This relationship was found also in experimentally blinded fish of other species. Furthermore, when placed in unfamiliar surroundings, blind cave fish swim at higher velocities than in familiar surroundings for a certain habituation period. The boundary layer which surrounds the fish attenuates the amplitude of the hydrodynamic stimulus because of its damping properties. Computations of the current velocity distribution within the boundary layer indicate that the stimulus for freestanding neuromasts is considerable even during swimming in open water.
Authors:
T Teyke
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of comparative physiology. A, Sensory, neural, and behavioral physiology     Volume:  163     ISSN:  0340-7594     ISO Abbreviation:  J. Comp. Physiol. A     Publication Date:  1988 May 
Date Detail:
Created Date:  1988-08-11     Completed Date:  1988-08-11     Revised Date:  2009-06-04    
Medline Journal Info:
Nlm Unique ID:  8413199     Medline TA:  J Comp Physiol A     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  53-61     Citation Subset:  IM    
Affiliation:
Institut für Zoologie (III) Biophysik, Johannes Gutenberg-Universität, Mainz, Federal Republic of Germany.
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MeSH Terms
Descriptor/Qualifier:
Animals
Blindness / physiopathology*
Fishes / physiology*
Methods
Physical Stimulation
Sense Organs / physiology*
Swimming*
Water Movements*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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