My main research aims to determine the fundamental components of the acoustic communication (sound production and hearing) in fishes and their evolution. The studies describe and explain the mechanisms implied in sound production and reception in various taxa of adult teleosts. It integrates data in (functional) morphology, histology, physiology, behaviour, ontogeny, biogeography as well as physics and acoustics. Moreover, the comparison of taxa living in different environment attempts to clarify the influence of environmental factors on the sound production. Other studies concern mainly the morphology of teleost fishes and the way they are adapted to their environment.