The electric eel has two pairs of generators, which are long spindle-shaped and located on both sides of the caudal spinal cord. The average voltage of electric eel during discharge is above 350 volts, but there are also records of 650 volts. The maximum voltage of American electric eels is more than 800 volts, which is enough to crush a cow. The current generated by electric eel during discharge is extremely weak, generally less than 1 amp. But sometimes it is observed that the voltage is 500 volts and the current is 2 amps, that is, the power is 65,438+0,000 watts. Although direct current is emitted, the discharge frequency can reach 300 pulses per second. The destructive power of electric discharge depends on the size and physical condition of eels. When the electric eel is less than 1 meter long, the voltage increases with the growth of the electric eel. When it grows to 1 m, it swims quietly near the school of fish, and then it can emit electricity continuously, so the electric eel immediately fainted and became stiff, so it took the opportunity to swallow them. Electric eels discharge, sometimes not necessarily for predation, but also for physiological needs. The fish electrocuted by electric eel often exceeds the amount needed to eat, which brings harm to fishery production. It takes some time for the electric eel to recover before it can discharge. Using this characteristic, they can be discharged.