...Jacquelyn M. Petzold; José A. Alves-Gomes; G. Troy Smith ABSTRACT Electrosensory systems of weakly electric fish must accommodate competing demands of sensing the environment (electrolocation) and receiving social information (electrocommunication). The jamming avoidance response (JAR...

... isolated. We injected fish with BrdU 2.5 h before sacrifice to label newborn cells. We examined the hindbrain and midbrain and quantified the density of BrdU+ cells in whole transverse sections, proliferative zones and two brain nuclei in the electrocommunication circuitry (the pacemaker nucleus...

...K. D. Dunlap; B. T. DiBenedictis; S. R. Banever SUMMARY Brown ghost knife fish ( Apteronotus leptorhynchus ) can briefly increase their electric organ discharge (EOD) frequency to produce electrocommunication signals termed chirps. The chirp rate increases when fish are presented with conspecific...

.... Kramer, B. ( 1979 ). Electric and motor responses of the weakly electric fish Gnathonemus petersii (Mormyridae) to play-back of social signals. Behav. Ecol. Sociobiol. 6 , 67 -79. Kramer, B. ( 1990 ). Electrocommunication in Teleost Fishes: Behavior and Experiments . Berlin, Heidelberg, New...

... periods of low aggression,whereas AFRs tend to be produced when the fish are aggressively attacking one another in close proximity. This study is the first to our knowledge that quantitatively describes both electrocommunication signalling and behavioural correlates on a subsecond time-scale in a wave...

... courtship reproduction electrocommunication electric organ discharge The weakly electric fish from Africa in the family Mormyridae, use their electric sense for communication and navigation( Hopkins, 1986b ) (for reviews,see Kramer, 1990 ; Ladich et al., 2006 ; Moller, 1995 ; von der Emde...

... components generated by the abdominal region prevail in self-generated fields. Similar results were obtained from Brachyhypopomus pinnicaudatus . These results suggest that, in pulse-emitting gymnotids, electrolocation and electrocommunication signals may be carried by different field components generated...

... by Company of Biologists 1999 electric fish electrocommunication gymnotiform gymnotid mormyriform mormyrid Mormyridae electric organ electrocyte electrostatic field conductivity evolution communication Forty years ago the Journal of Experimental Biology published Hans Lissmann’s...

... of some higher functions in the cerebellum and forebrain will gradually come to light. * e-mail: [email protected] 02 03 1999 21 04 1999 © 1999 by Company of Biologists 1999 electroreception electrocommunication brain organisation complexity cognition...