gas-filled pouch found in most bony fishes, used for buoyancy, sound production, and detection.
An organ found in most fish that traps a bubble of air to enable the fish to maintain buoyancy. It is an extension of the oesophagus.
a thin-walled, gas-filled sac found in bony fish that permits them to control their buoyancy and thus rise or sink in the water.
A sac inside the salmon's body by which the fish can control buoyancy
An internal air sac which can contain more or less air according to the needs of the fish at the time. More air helps the fish become more buoyant, while less air allows the fish to swim down to deeper levels. Also called Air bladder. Serves to keep fish properly oriented in the water. Also creates and amplifies sounds.
an organ regulating the buoyancy in most teleost (bony) fishes.[] TUV
a sac filled with air or other gases lying beneath the backbone and either attached or not to the walls of the body cavity
an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
a gas-filled sac that allows the fish to float at different water levels
a gas-filled sac whose pressure can be altered to regulate buoyancy and depth
a pocket full of air inside the fish that helps keep it afloat and facing upright
An internal organ that helps fish maintain normal buoyancy.
also called an air bladder. It is an air-filled organism in fish that maintains buoyancy. It is the expansion and contraction of the bladder that allows fish to ascend and descend quickly.
Internal organ that automatically regulates natural buoyancy. axon A group classification (name for) animals.
An internal hydrostatic organ that helps fish maintain a neutral buoyancy.
A gas-filled organ that assists with the buoyancy of the fish. Without a properly functioning swim bladder a fish will sink.
usually an air or fat filled organ that is used by fish to maintain neutral water buoyancy. Also called Air Bladder.