Question

How important is the presence of air bladder in
Pisces?​

Answer 1

Bony fishes have a sac-like outgrowth, the swim bladder also called air bladder, that arises as an outgrowth from the dorsal wall of oesophagus. It is hydrostatic in function. It regulates buoyancy and helps them to swim up and down, thus preventing them from sinking. In some species air bladder also helps in respiration. It also serves as resonating chamber to produce or receive sound.

Answer 2

Answer:

• Gas bladder or air bladder is a gas filled sac present in fishes.
• It helps in maintaining buoyancy.
• Thus, it helps fishes to ascend or descend and stay in the water current.