| Detailed studies have demonstrated that electrical signaling is very important in predator/prey interactions. In one record of a complete interaction between an electric eel (Electrophorus electricus) and a Gymnotus carapo, a unique signaling sequence took place. |
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| Gymnotus carapo photo by Castro,
R.M.C.
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| Once the E. electicus became aware of the presence of the G. carapo, it produced a series of long electrical discharges that silenced the G. carapo. When the G. carapo did not perceive any more signals from the E. electricus, it began producing signals again, only to be silenced once more. As the E. electricus closed in on the G. carapo, it produces several bursts or electrical discharge. Just after these bursts, a period of violent motor activity was recorded and signals were not heard again from the G. carapo. The researchers assumed that the G. carapo had been eaten by the E. electricus (Westby, 1988). |
species uses
signals production
courtship predator/prey
identification
hormonal control