Fig. 6. The electric field generated by the electric organ discharge (EOD). (A) Typical EOD waveforms corresponding to biphasic larval, triphasic larval and juvenile stages, showing the progressive incorporation of EOD components. (B) The root mean square value of the EOD associated field (rmsEOD) is a linear function of the square of the fish length. This relationship holds for larvae, juveniles and adults, in spite of the differences in EOD waveform. (C) During the larval and juvenile stages, the frequency at which the power spectrum of the EOD peaks, increases with fish length.