Swim bladder disease affects many types of fish and can occur for several reasons. One common cause is overfeeding or eating too quickly. Many new aquarium owners accidentally give their pets too ...

Fish maw — the swim bladder of a fish — is one of the most expensive dried-seafood products in the world. A Chinese delicacy, it can fetch $450 to $1,000 per kilogram.

The fish swim bladder is an organ that aids fish in floating in water and is composed of collagen, glycosaminoglycans, and elastin, closely resembling parts of the human heart.

The fish swim bladder is an organ that aids fish in floating in water and is composed of collagen, glycosaminoglycans, and elastin, closely resembling parts of the human heart.

The swim bladder holds oxygen and gasses to help maintain "neutral buoyancy at the fish's desired depth," Jessie M. Sanders, an aquatic veterinarian, explained in a December 2017 article for PetMD.

The fish swim bladder is an organ that aids fish in floating in water and is composed of collagen, glycosaminoglycans, and elastin, closely resembling parts of the human heart.