CORDIS Project
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This project investigates the Weberian apparatus in otophysan fish, focusing on its morphology and function. By studying species like piranhas and pacus, the research aims to understand how variations in this structure relate to hearing abilities and prey localization through sound.
The evolutionary success of otophysans, a major lineage of fish diversity, is often attributed to a novel morphology involving unique bones, anterior vertebrae, and the swim bladder.
This feature, termed the Weberian apparatus (WA), is an accessory hearing organ that transduces sound from the swim bladder to the inner ear.
As a result, otophysans have sensitive hearing, however, the adaptive function for such ability is unknown.
Further, the effect of WA morphological variation between species i…
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