Physical model to predict and explain fish communication sounds

In Teleostean fish, sound-producing mechanisms described in the literature typically involve the contraction of very fast muscles, the sonic muscles. They compress a gas-filled pouch organ, the swim bladder, at a high specific rate resulting in sounds. To predict and explain the produced sounds, and to better understand the sound-producing mechanism, we model the {bladder–muscle} system using the mechanical properties of the swim bladder.