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Publication
Sound production during courtship and spawning of Oreochromis mossambicus: male–female and male–male interactions
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Advisor(s)
Abstract(s)
The role of sound production of the Mozambique tilapia Oreochromis mossambicus in agonistic
and mating interactions observed during hierarchy formation and in established groups was
examined. Only territorial males produced sounds, during male–female and male–male courtshipinteraction
s and during pit-related activities (e.g. dig, hover and still in the nest). Sound
production rate was positively correlated with courting rate. Although sounds in other cichlids
are typically emitted in early stages of courtship, O. mossambicus produced sounds in all phases,
but especially during late stages of courtship, including spawning. It is suggested that the
acoustic emissions in this species may play a role in advertising the presence and spawning
readiness of males and in synchronizing gamete release.
Description
Keywords
Acoustic communication Cichlidae Teleosts Territorial behaviour
Citation
Journal of Fish Biology, 62, 658-672