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Keywords: electric organ discharge
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Journal Articles
In collection:
J Exp Biol (2019) 222 (11): jeb195354.
Published: 11 June 2019
...Virginia Comas; Kim Langevin; Ana Silva; Michel Borde ABSTRACT South American weakly electric fish (order Gymnotiformes) rely on a highly conserved and relatively fixed electromotor circuit to produce species-specific electric organ discharges (EODs) and a variety of meaningful adaptive EOD...
Journal Articles
J Exp Biol (2018) 221 (17): jeb178913.
Published: 10 September 2018
...) is a behavioral strategy thought to reduce electrosensory interference from conspecific signals close in frequency. We used playback experiments to characterize electric organ discharge frequency (EODf), chirping behavior and the JAR of Distocyclus conirostris , a gregarious electric fish species. EODs of D...
Journal Articles
J Exp Biol (2018) 221 (15): jeb178244.
Published: 13 August 2018
... to stimuli arising from different contexts, by measuring changes in the electric organ discharge (EOD) frequency. Specifically, we focused on envelopes, which can arise either because of movement (i.e. motion envelopes) or because of interactions between the electric fields of three of more fish (i.e. social...
Journal Articles
J Exp Biol (2013) 216 (13): 2365–2379.
Published: 1 July 2013
... electric organ discharge Neurons transmit information with trains of action potentials, or spikes. The relationship between spikes and the information they represent is referred to as a neural code ( Perkel and Bullock, 1968 ). Information can be encoded in the spike trains of single neurons...
Journal Articles
J Exp Biol (2013) 216 (13): 2451–2458.
Published: 1 July 2013
... that produce the electric organ discharge (EOD). Just over 50 years ago the first experimental analyses of electrocyte physiology demonstrated that the EOD is produced and shaped by the timing and waveform of electrocyte action potentials (APs). Electrocytes of some species generate a single AP from a distinct...
Journal Articles
J Exp Biol (2008) 211 (12): 1969–1977.
Published: 15 June 2008
...Peter Machnik; Bernd Kramer SUMMARY In adult males of the South African weakly electric bulldog fish, Marcusenius pongolensis , the duration of the electric organ discharge(EOD) increases with body size over lifetime. Although there is experimental support for intrasexual selection (male–male...
Journal Articles
J Exp Biol (2008) 211 (6): 921–934.
Published: 15 March 2008
... active electrolocation. * Author for correspondence (e-mail: jacob.engelmann@uni-bonn.de ) 11 12 2007 © The Company of Biologists Limited 2008 2008 pre-receptor mechanism active electrolocation fovea electric image shape recognition electric organ discharge Mormyridae...
Journal Articles
J Exp Biol (2008) 211 (6): 1012–1020.
Published: 15 March 2008
...-mail: vsalaz01@fiu.edu ) 12 1 2008 © The Company of Biologists Limited 2008 2008 gymnotiform sexual dimorphism circadian rhythm electric fish electric organ discharge energetic cost communication signal Opposing selective forces shape the sexually dimorphic communication signals...
Journal Articles
J Exp Biol (2007) 210 (13): 2244–2252.
Published: 1 July 2007
...Ryan Y. Wong; Carl D. Hopkins SUMMARY Mormyrid electric fish rely on the waveform of their electric organ discharges (EODs) for communicating species, sex, and social status, while they use the sequences of pulse intervals (SPIs) for communicating rapidly changing behavioral states and motivation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2004) 207 (17): 2907–2916.
Published: 1 August 2004
...-mail: alberto@fma.if.usp.br ) 3 6 2004 © The Company of Biologists Limited 2004 2004 electric organ discharge jamming avoidance response electric fish inter-pulse interval transient interval shortening South and central American electric fish use a specialized electric organ...
Journal Articles
J Exp Biol (2004) 207 (7): 1073–1084.
Published: 1 March 2004
...Bruce A. Carlson; Carl D. Hopkins SUMMARY Like all mormyrid fish, Brienomyrus brachyistius produces an electric organ discharge (EOD) with a constant waveform and variable sequence of pulse intervals (SPI). Periodic bursts fall into two display categories termed `scallops' and `accelerations...
Journal Articles
J Exp Biol (2003) 206 (14): 2355–2362.
Published: 15 July 2003
... changes in the electric organ discharge(EOD) of subadult Gnathonemus petersii under non-breeding environmental conditions. Increases in EOD duration and changes in the relative phase amplitudes occurred in dominant fish during same-sex(male–male, female–female) and opposite-sex interactions. Similar...
Journal Articles
J Exp Biol (2003) 206 (8): 1353–1362.
Published: 15 April 2003
...Philip K. Stoddard; Michael R. Markham; Vielka L. Salazar SUMMARY The gymnotiform electric fish Brachyhypopomus pinnicaudatus communicates with a sexually dimorphic electric waveform, the electric organ discharge (EOD). Males display pronounced circadian rhythms in the amplitude and duration...
Journal Articles
J Exp Biol (2002) 205 (16): 2525–2533.
Published: 15 August 2002
...Stefan Schuster SUMMARY Gymnotiform weakly electric fish find their way in the dark using a continuously operating active sensory system. An electric organ generates a continuous train of discharges (electric organ discharges, EODs), and tuberous high-frequency electroreceptors monitor the pattern...
Journal Articles
J Exp Biol (1987) 130 (1): 39–62.
Published: 1 July 1987
...Bernd Kramer ABSTRACT Eigenmannia’ s, jamming avoidance response (JAR) is a frequency change of its electric organ discharge (EOD) in response to an electric stimulus of similar frequency (small ΔF; ΔF = F Fish – F Stim ). It is assumed that the response to an unclamped stimulus, ΔR = F Response...
Journal Articles
J Exp Biol (1986) 121 (1): 197–226.
Published: 1 March 1986
..., stimulus intensity/response magnitude relationships and missing of certain motor acts. Ontogenetic maturation of the behaviour patterns is observed in embryos and in immature neonates. Sets of electric organ discharges (EODs), which accompany the defensive responses and certain predatory responses, show...
Journal Articles
J Exp Biol (1985) 119 (1): 41–69.
Published: 1 November 1985
...Bernd Kramer ABSTRACT The present report shows an intraspecific, sexually dimorphic variation in harmonic content and waveform, as well as intensity, of the Electric Organ Discharges (EODs) in the green knife fish, Eigenmannia ( Figs 2 , 11 ). There is a close correlation between harmonic content...