Voltage and Pulse Rates for Inducing Electrotaxis in Twelve Coastal Pelagic and Bottom Fishes

Abstract

Laboratory observations on fish reactions to different voltages and direct current pulse rates provided information on the electrical characteristics needed for inducing electrotaxis for use in a proposed automated harvesting system. Optimal electrical combinations for 12 species of coastal pelagic and bottom fishes varied according to species and length, and ranged from 1.5 to 3.0 v/10 cm at 15–45 pulses/sec with a pulse duration of 1.0 msec.