Document Detail

Feeding behavior by parasitic phase lampreys, Ichthyomyzon unicuspis.
MedLine Citation:
PMID:  3228689     Owner:  NLM     Status:  MEDLINE    
Feeding behavior was initiated in juvenile and adult lampreys, Ichthyomyzon unicuspis, by attachment to goldfish or by injection of saline extracts of goldfish skin and muscle into the sucker cavity. Feeding was confirmed by the apparent swallowing of fish extract plus food dye by lampreys. Distinctive characteristics of feeding behavior included low frequency cycles, long duration (hours), variable biphasic pressure changes in the sucker cavity, and protraction of the tongue-like apicalis. In contrast, pumping behavior was used to move excess fluid from the sucker through the pharynx and out the gill pores; it was characterized by transient, high-frequency, monophasic suctions, simple retraction of the apicalis, and lack of swallowing.
R Kawasaki; C M Rovainen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Brain, behavior and evolution     Volume:  32     ISSN:  0006-8977     ISO Abbreviation:  Brain Behav. Evol.     Publication Date:  1988  
Date Detail:
Created Date:  1989-04-18     Completed Date:  1989-04-18     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0151620     Medline TA:  Brain Behav Evol     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  317-29     Citation Subset:  IM    
Department of Cell Biology and Physiology, Washington University School of Medicine, St. Louis, Mo.
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MeSH Terms
Arousal / physiology
Feeding Behavior / physiology*
Fishes / physiology*
Lampreys / physiology*
Masticatory Muscles / innervation*
Motor Neurons / physiology*
Startle Reaction / physiology
Sucking Behavior / physiology
Trigeminal Nerve / physiology*
Grant Support

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