Electric Poisson

One calls electric fish the Poisson S able to use a Electric current to be directed, to protect themselves or communicate.

The majority of these fish generate a Electric field around their body. Any object placed in the vicinity modifies the local intensity of the electric field if it conducts electricity differently from water. Thereafter, of the electric receiving located in the skin detects the electric field, and the sudden modifications, which makes it possible fish to perceive the characteristics of its environment, to detect its preys and to communicate with its congeneric. Changes of the electric field about the tenth of microphone Volt are thus perceived.

Some species are however able to produce electric shocks of strong intensity, like the electric eels (up to 600 V and 2 A), the torpedes (up to 200 V and 30 A) or the malapterurus electricus (electric silure) (to 100 V). They make use of it to be protected against from predatory, or to strike preys before consuming them. They produce these electric shocks thanks to their electric bodies, derived from the muscles.

List electric fish

See too

External bonds

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