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Swim Bladder

Swim Bladder
A Swim Bladder

A Swim Bladder is an internal, gas-filled bladder that most bony fish use to regulate their buoyancy.

By adjusting the gas pressure inside the bladder, a fish can become neutrally buoyant, meaning that is neither rises or sinks.

Associated Terms: Gas Bladder, Fish Maw, Air Bladder


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