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Courtship and agonistic sounds by the cichlid fish Pseudotropheus zebra
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Resumo(s)
Courtship and agonistic interactions in an African cichlid species present a richer diversity of
acoustic stimuli than previously reported. Male cichlids, including those from the genus
Pseudotropheus (P.), produce low frequency short pulsed sounds during courtship. Sounds emitted
by P. zebra males in the early stages of courtship during quiver were found to be significantly
longer and with a higher number of pulses than sounds produced in later stages. During agonistic
intrasexual quiver displays, males produced significantly longer sounds with more pulses than
females. Also, male sounds had a shorter duration and pulse period in courtship than in male–male
interactions. Taken together, these results show that the acoustic repertoire of this species is larger
than what was previously known and emphasize the importance of further research exploiting the
role of acoustic stimuli in intra- and interspecific communication in African cichlids.
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Citação
Journal of the Acoustical Society of America, 124 (12), 1332-1339