Fishing – trapping – and vermin destroying – Fishing – Electric current or sonic wave energy
Patent
1992-04-30
1993-08-10
Heinrich, Samuel M.
Fishing, trapping, and vermin destroying
Fishing
Electric current or sonic wave energy
43 45, A01K 7902
Patent
active
052337820
ABSTRACT:
To minimize injury during electrofishing while inducing a high degree of electrotaxis, a packet of DC pulses having sharp leading edges and preferably an exponential or square decay are transmitted under water between an anode electrode and a cathode electrode several times each second to stimulate contraction of the red muscle tissues and bring about electrotaxis without inducing epileptic seizure of the white muscle tissues of fish and thereby avoiding injury to the fish.
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"Electrofishing-Induced Spinal Injury in Rainbow Trout", Sharber, Carothers, Sharber; Ichthyo Technologies, Flagstaff, AZ (1989).
"Influence of Electrofishing Pulse Shape on Spinal Injuries in Adult Rainbow Trout", Sharber and Carothers; Ichthyo Technologies, Flagstaff, AZ (1988).
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Selected pages from "Fishing With Electricity", European Inland Fisheries Advisory Commission, pub. by Food and Agriculture Organization of the United Nations.
Sharber John P.
Sharber Norman G.
Coffelt Manufacturing, Inc.
Heinrich Samuel M.
Mah Chuck Y.
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