Stichting De Traditie - Electroreception videos

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'Active' electric fish: Pulse-type Electric Organ Discharges

- A single specimen of Gnathonemus petersii (Guenther, 1862) hiding in a perspex tube, and emitting pulse-like Electric Organ Discharges (3Mb mpg; recording by Dr. Tim van Wessel).
- Two specimens of Gnathonemus petersii (Guenther, 1862) emitting Electric Organ Discharges, and showing agonistic behavior (3Mb mpg; recording by Dr. Tim van Wessel).

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'Active' electric fish: Wave-type Electric Organ Discharges

- A single specimen of Apteronotus albifrons (Linnaeus, 1766), emitting wave-like Electric Organ Discharges (3Mb mpg; recording by Dr. Tim van Wessel)
- Two specimens of Apteronotus albifrons (Linnaeus, 1766), showing the Jamming Avoidance Response and chirping (7Mb mpg; recording by Dr. Tim van Wessel)

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'Passive' electrosensitive fish: No Electric Organ

- A catfish, Ameiurus (Ictalurus)nebulosus (Lesueur, 1819) catches a Xenopus tadpole in turbid water. The tadpole is swimming near the surface (1 Mb avi).
- A catfish, Ameiurus (Ictalurus)nebulosus (Lesueur, 1819) passes a plastic dummy Xenopus tadpole without noticing it (1 Mb avi).
- A catfish, Ameiurus (Ictalurus)nebulosus (Lesueur, 1819) catches a plastic dummy Xenopus tadpole which is powered by an electric field that resembles the natural Xenopus bio-electric field (1 Mb avi).
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