Sound production mechanism in triggerfish (Balistidae): a synapomorphy

Xavier Raick 1 David Lecchini 2 Loic Kéver 1 Orphal Colleye 1 Frédéric Bertucci 2 Eric Parmentier 1
1 Laboratoire de Morphologie Fonctionnelle et Evolutive
2 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
Abstract : The ability to produce sounds foracoustic communication is known in differentBalistidaespeciesbuttheeventualsynapomorphicaspectof the mechanism remains to be shown. In Rhinecanthus aculeatus, soundsresultfromalternatesweepingmovementsoftheright andleft pectoral fins, which push a system of three scutes against the swim bladder wall. In this study, we made a comparison between the sounds produced by this species and two additional ones (Balistapus undulatus and Rhinecanthus rectangulus) using hand-held specimens to provide a description of the sound mechanism. The results highlighted that the sound production mechanism is similar in the three species. According to recent phylogenetic data and shared morphological features, this mechanism could be common to the majority of Balistidae family members and all species could be capable of sound production using pectoral fins.
Keywords : Swimbladder Vocal communication Acoustic repertoire Exaptation
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Journal articles
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Submitted on : Thursday, December 13, 2018 - 4:41:09 PM
Last modification on : Thursday, June 27, 2019 - 1:51:03 AM

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Xavier Raick, David Lecchini, Loic Kéver, Orphal Colleye, Frédéric Bertucci, et al.. Sound production mechanism in triggerfish (Balistidae): a synapomorphy. Journal of Experimental Biology, Cambridge University Press, 2018, 221 (1), pp.jeb168948. ⟨hal-01954506⟩

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