Agonistic sounds in the skunk clownfish Amphiprion akallopisos: size-related variation in acoustic features
O. Colleye, B. Frederich, P. Vandewalle, M. Casadevall and E. Parmentier
Journal of Fish Biology (2009) 75: 908–916
Fourteen individuals of the skunk clownfish Amphiprion akallopisos of different sizes and of different sexual status (non-breeder, male or female) were analysed for four acoustic features. Dominant frequency and pulse duration were highly correlated with standard length (r = 0·97), and were not related to sex. Both the dominant frequency and pulse duration were signals conveying information related to the size of the emitter, which implies that these sound characteristics could be useful in assessing size of conspecifics.
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