Electrosensory basis for individual recognition in a weakly electric, mormyrid fish, Pollimyrus adspersus (G�nther, 1866)
نویسندگان
چکیده
منابع مشابه
Individual and sex specificity in the electric organ discharges of breeding mormyrid fish (Pollimyrus isidori).
I monitored the electric organ discharges (EODs) of 14 Pollimyrus isidori, (Cuvier and Valenciennes) during an artificially induced breeding season, to examine sex and individual differences in reproductive fish. EODs were repeatedly recorded over an 11-day period to ascertain the stability of each individual's EOD and to make a quantitative assessment of sex differences. Within days, I found t...
متن کاملElectrosensory thresholds in larvae of the weakly electric fish Pollimyrus isidori (Mormyridae, Teleostei) during ontogeny
Electrosensory thresholds and tuning were determined from behavioural studies in larvae of Pollimyrus isidori using the stop response of their electric organ discharge to weak electrical stimuli. Two age groups were studied: (1) 10- to 15-day-old larvae in which the electric organ discharge (EOD), produced by a distinct larval electric organ, had just stabilized; (2) 54- to 60-day-old larvae, j...
متن کاملElectrosensory Response Mechanisms in Mormyrid Electric Fish 1
Mormyrid electric sh use mormyromast receptors in their skin to detect distortions in a self-generated electric eld. The electroreceptor a erents modulate neuronal activity in the electrosensory lateral line lobe (ELL), a cerebellum-like structure. In this study of the ELL's mormyromast region, computer simulations compare mechanisms responsible for the observed responses involved in active ele...
متن کاملNeural substrates for species recognition in the time-coding electrosensory pathway of mormyrid electric fish.
Mormyrid electric fish have species- and sex-typical electric organ discharges (EODs). One class of tuberous electroreceptors, the knollenorgans, plays a critical role in electric communication; one function is species recognition of EOD waveforms. In this paper, we describe cell types in the knollenorgan central pathway, which appear responsible for analysis of the temporal patterns of spikes ...
متن کاملNeuromodulation of early electrosensory processing in gymnotiform weakly electric fish.
Sensory neurons continually adapt their processing properties in response to changes in the sensory environment or the brain's internal state. Neuromodulators are thought to mediate such adaptation through a variety of receptors and their action has been implicated in processes such as attention, learning and memory, aggression, reproductive behaviour and state-dependent mechanisms. Here, we re...
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ژورنال
عنوان ژورنال: Behavioral Ecology and Sociobiology
سال: 2003
ISSN: 0340-5443,1432-0762
DOI: 10.1007/s00265-003-0690-4