Preliminary study on the ecomorphological signification of the sound-producing complex in Carapidae
Parmentier E, Chardon M & Vandewalle P
Topics in Functional and Ecological Vertebrate Morphology
Aerts P, D'Août K, Herrel A, Van Damme R (eds).
Maastricht: Shaker Publishing, 2002, pp : 139-151. 2002
Carapidae species may be classified in four ecological groups : pelagic, dermersal, commensal and parasitic. Carapidae display otophysic structures associated with the anterior part of the swim bladder and highly modified labyrinths, which suggest particular acoustic performances. The commensal and parasitic species have the most developed sound-producing features and also the thickest sagitta within the largest otic cavity surrounded by the thinnest cranial wall. However, these features do not necessarily imply a direct relation between the sound emission and reception displayed by the specimens of a given species. A selective pressure could lie in the environmental habitat of the inhabiting species. The structures involved in sound-producing and hearing are possibly adapted to match the loss of energy by the sonic vibrations when travelling through the host tissues.
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