Types Electrofishing

electrofishing boat

there 3 types of electrofishers: backpack models, tote barge models, , boat mounted models, called stunboat.

backpack electrofisher generators either battery or gas powered. employ transformer pulse current before delivered water. anode located @ end of long, 2 meter pole , in form of ring. cathode long, 3 meter braided steel cable trails behind operator. electrofisher operated deadman s switch on anode pole. there number of safety features built newer backpack models, such audible speakers sound when unit operating, tilt-switches incapacitate electrofisher if backpack tilted more 45 degrees, , quick-release straps enable user remove electrofisher in event of emergency.

when boat electrofishing, boat cathode, , anode(s) mounted off bow. stunned fish swim toward anode, caught alive using dip net. towed barge electrofishers operate backpack electrofishers, exception generator located on floating barge instead of on backpack. barge can left stationary on shore , longer cathodes , anodes allow crew sample large areas. barge electrofishers employ gas-powered generators since user not have carry weight on or back.

a method of electrofishing using illegally diverted electricity overhead electric lines prevalent in parts of indian state of kerala. can result in accidental deaths due electrocution.