Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Species Specificity of Giant Nerve Fiber Conduction Velocity in Oligochaetes.
Author Drewes, C. D. ; Callahan, C. A. ; Fender, W. M. ;
CORP Author Corvallis Environmental Research Lab., OR. ;Iowa State Univ., Ames.
Year Published 1983
Report Number EPA-600/J-83-211;
Stock Number PB84-208099
Additional Subjects Electrophysiologic recording ; Worms ; Responses ; Reprints ; Noninvasive tests ; Oligochaetes ; Nerve fibers
Library Call Number Additional Info Location Last
NTIS  PB84-208099 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 10p
Giant nerve fiber conduction velocities were studied using noninvasive electrophysiological recording techniques in adults from 12 species of oligochaetes, representing five different families. Two separate and stereotyped all-or-none response patterns to tactile stimulation (corresponding to medial and lateral giant fiber spike responses) were observed in all 12 species, suggesting that this functional dichotomy has been a conserved feature in the evolution of oligochaete escape reflexes. The results indicate that there is considerable species specificity with respect to medial and lateral giant fiber conduction velocities, which may derive from species differences in genetically determined limits in the radial growth of the giant fibers.