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Agonistic sounds in the skunk clownfish Amphiprion akallopisos: size-related variation in acoustic features

Authors

  • O. Colleye,

    Corresponding author
    1. Laboratoire de Morphologie Fonctionnelle et Evolutive, Département des Sciences et Gestion de l’Environnement, Université de Liège, Institut de Chimie, Bât B6c, 4000 Liège, Belgium
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  • B. Frederich,

    1. Laboratoire de Morphologie Fonctionnelle et Evolutive, Département des Sciences et Gestion de l’Environnement, Université de Liège, Institut de Chimie, Bât B6c, 4000 Liège, Belgium
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  • P. Vandewalle,

    1. Laboratoire de Morphologie Fonctionnelle et Evolutive, Département des Sciences et Gestion de l’Environnement, Université de Liège, Institut de Chimie, Bât B6c, 4000 Liège, Belgium
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  • M. Casadevall,

    1. Unitat de Biologia Animal, Facultat de Ciències, Universitat de Girona, Campus de Montilivi s/n, 17071 Girona, Spain
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  • E. Parmentier

    1. Laboratoire de Morphologie Fonctionnelle et Evolutive, Département des Sciences et Gestion de l’Environnement, Université de Liège, Institut de Chimie, Bât B6c, 4000 Liège, Belgium
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Tel.: +32 4366 50 33; fax: +32 4366 37 15; email: O.Colleye@ulg.ac.be

Abstract

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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