Reference : Hearing and morphological specializations of the mojarra (Eucinostomus argenteus)
Scientific journals : Article
Life sciences : Zoology
Hearing and morphological specializations of the mojarra (Eucinostomus argenteus)
Parmentier, Eric mailto [Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive >]
Mann, Kenneth [ > > ]
Mann, David [ > > ]
Journal of Experimental Biology
Company of Biologists
Yes (verified by ORBi)
United Kingdom
[en] The air-filled swimbladder acts as an acoustic amplifier for some fish by converting sound pressure into particle motion, which is transmitted to the inner ear. Here, we describe in detail the specialized connection between the swimbladder and ear in the mojarra, as well as a modified cone on the anal fin in which the posterior end of the swimbladder sits. Hearing tests show the mojarra has better hearing sensitivity than other species of fish without a connection. However, mojarras do not seem to use this adaptation for communication. Furthermore, the inclined position of the swimbladder may help the fish to catch their prey more easily, as the swimbladder will be horizontal when they are picking up benthic prey.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; Ulg
Researchers ; Students

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