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Malapterurus electricus is a thickset fish with six mouth barbels and a single fin on its back, just anterior to the rounded tail fin. It is brownish or grayish, irregularly spotted with black, and attains a length and weight of about 1.2 metres (3 ft 11 in) and 23 kilograms (51 lb) M. electricus is capable of generating and controlling the discharge of up to 450 volts of electricity.
Malapterurus have been conditioned by means of reward to discharge on signal. As reported in the New York Times, April 2, 1967, a researcher, Dr. Frank J. Mandriota of City College, New York, conditioned an M. electricus to discharge on a light signal for a reward of live worms delivered automatically. This is the first conditioning that ...
Malapterurus species are generally found among rocks or roots in turbid or black waters with low visibility. They favor sluggish or standing water. [ 3] M. electricus is a voracious piscivore. It uses its electrical discharges to stun prey. It is an opportunistic feeder and will feed on any readily available prey in the habitat.
History of bioelectricity. The history of bioelectricity dates back to ancient Egypt, where the shocks delivered by the electric catfish were used medicinally. In the 18th century, the abilities of the torpedo ray and the electric eel were investigated by scientists including Hugh Williamson and John Walsh.
An electric fish is any fish that can generate electric fields, whether to sense things around them, for defence, or to stun prey. Most fish able to produce shocks are also electroreceptive, meaning that they can sense electric fields. The only exception is the stargazer family (Uranoscopidae). Electric fish, although a small minority of all ...
The Electric Catfish (Malapterurus electricus) occurs in the Nile (exclusive of Lake Victoria). It grows up to 1 metre in length and 20 kg in weight, and lives in rocky waters or roots and favours sluggish or standing water. It is most active at night, feeding mainly on fish stunned by electric shocks.
While Forsskål's description indicated that he had misinterpreted Linnaeus' name and ascribed it to another electric fish (currently known as Malapterurus electricus), this potential source of confusion was rectified in 2008, when Raja torpedo Linnaeus was officially made the type species under ICZN Article 70.3.1. [5]
Malapterurus beninensis is a species of electric catfish native to the African nations of Angola, Benin, Cameroon, the Democratic Republic of the Congo, the Republic of the Congo, Equatorial Guinea, Gabon, Ghana, Nigeria and Togo. This species grows to a length of 22 cm (9 in) SL. [3] Its habitat is lowland marshes, rivers, and lakes.