What Is the Function of the Swim Bladder?
The swim bladder is found in most bony fish and helps control density to prevent sinking or floating. According to the Journal of Experimental Biology, scientists still don’t understand all the functions of the swim bladder.FeaturesAccording to Encyclopedia Britannica, the swim bladder is an organ filled with gas, usually oxygen, that helps the fish regulate its buoyancy.ResonanceThe fish can also use its swim bladder for resonance, to hear and send sound.FunctionThe swim bladder regulates the amount of oxygen with hemoglobin, a protein found in red blood cells. If the fish’s blood becomes acidic, the swim bladder releases hemoglobin.
