||In vivo Neurotoxic Effects of Dieldrin on Giant Nerve Fibers and Escape Reflex Function in the Earthworm, 'Eisenia foetida'.
Drewes, C. D. ;
Vining, E. P. ;
||Iowa State Univ., Ames.;Corvallis Environmental Research Lab., OR.
In viro analysis ;
Eisenia foetida ;
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Neurotoxicological effects of dieldrin were assessed in adult earthworms, Eisenia foetida, using noninvasive electrophysiological recordings of escape reflex activity. After 48 hr body surface exposure to aqueous suspensions of dieldrin, dose-dependent reductions in medial and lateral giant nerve fiber conduction velocities were seen within a concentration range of 1.4 to 288 ppm.