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The reproductive biology and feeding habits of the electric fish Brachyhypopomus gauderio were studied. The species has seasonal… Expand Seasonal breeders are superb models for understanding natural relationships between reproductive behavior and its neural bases… Expand SUMMARY To understand the evolution of sexually dimorphic communication signals, we must quantify their costs, including their… Expand Behavior in electric fish includes modulations of a stereotyped electric organ discharge (EOD) in addition to locomotor displays… Expand This study was carried out in Uruguay (30–35°S), South America, with two complementary approaches. First, an extensive… Expand SUMMARY In contrast to most of the previous studies in gymnotiform reproduction, which have been conducted in the tropical region… Expand Weakly electric fish communicate with brief electrostatic field pulses called electric organ discharges (EODs). EOD waveforms are… Expand Abstract The mechanisms that trigger the onset of the breeding season depend on geographical latitude. At the edge of Gymnotiform… Expand Abstract The electric organ discharge of the gymnotiform fish Brachyhypopomus pinnicaudatus is a biphasic waveform. The female's… Expand The electric organ discharge of Brachyhypopomus pinnicaudatus was studied by recording (1) the discharge field potentials in… Expand