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The 37 pages that link to Swim bladder, each with the reason it gives.

• Ray-finned fishRelated: In many ray-finned fishes, this organ supports buoyancy and sometimes sound production.

• ActinopterygiiRelated: In many actinopterygians, it enables hovering without continuous swimming.

• TeleostRelated: Many teleosts use this organ to hover at depth without constant swimming.

• OsteichthyesRelated: In many ray-finned fishes, it is a buoyancy organ derived from the foregut.

• Deep scattering layerRelated: Gas-filled swim bladders reflect sonar strongly and make many fish conspicuous within the layer.

• Pelagic fishRelated: Buoyancy control can reduce the energy cost of remaining at depth.

• TeleosteiRelated: Many teleosts use this organ to maintain depth without continuous swimming.

• Lobe-finned fishCompared with: Its contrast with lungs highlights alternative outcomes of an ancient respiratory organ.

• LungfishCompared with: Lungfish lungs are evolutionarily related to gas-filled organs but function in breathing air.

• Fish anatomyRelated: It is a distinctive internal organ with major effects on body organization.

• Bony fishRelated: Its evolutionary relationship to lungs helps explain a distinctive feature of bony fishes.

• Weberian apparatusRelated: Its sound-induced vibrations provide the input that the Weberian chain carries toward the ear.

• Marine fishRelated: It lets many marine bony fishes remain at depth without constant swimming.

• Mesopelagic fishRelated: Its reduction or modification helps some species manage pressure changes during vertical movement.

• OstariophysiRelated: In many ostariophysans, it also acts as a sound-producing or sound-receiving structure.

• AnguilliformesRelated: Its form and function vary among eel lineages, including deep-sea forms.

• GadidaeRelated: Buoyancy control supports the water-column movements of many gadids.

• IchthyologyBroader topic: Its volume changes let many fishes hover at depth without constant swimming.

• Patagonian toothfishRelated: Toothfish lack a swim bladder, a feature associated with their deep-water lifestyle.

• Antarctic toothfishCompared with: Unlike many bony fishes, toothfish lack a swim bladder and rely on other means of controlling buoyancy.

• GadiformesRelated: Buoyancy control supports the water-column lifestyles of many gadiform species.

• OarfishRelated: Buoyancy control is relevant to maintaining position in the water column, though oarfish anatomy differs from many familiar fishes.

• HakeRelated: Buoyancy regulation helps explain how hake occupy changing depths.

• LoachRelated: Loach groups vary in swim-bladder form, reflecting differences in habitat and lifestyle.

• OphidiiformesRelated: Its structure and function vary among deep-living ophidiiforms adapted to pressure and depth.

• BowfinRelated: In bowfin, this organ also functions as a lung for breathing air.

• PearlfishRelated: Its reduction or absence is among the traits associated with carapid body specialization.

• ArapaimaRelated: Arapaima use a modified swim bladder as a lung-like organ for breathing air.

• BichirRelated: Bichir lungs are modified swim bladders with a different primary role.

• Giant oarfishRelated: The giant oarfish lacks a swim bladder, unlike many fishes that control depth with one.

• MyctophiformesRelated: Its changes with depth help explain vertical movements in some myctophiform fishes.

• NotopteridaeRelated: In several featherbacks, its connection to the inner ear supports sound perception.

• ReedfishRelated: The swim bladder and lungs share evolutionary ties, but reedfish lungs serve air breathing.

• BatrachoididaeRelated: Toadfishes use specialized muscles and swim bladders to produce sounds.

• Black swallowerRelated: Buoyancy anatomy helps explain how fishes occupy and move through water at depth.

• Marine hatchetfishRelated: Buoyancy control matters for fishes that move between mesopelagic depths and surface waters.

• TarponRelated: In tarpons, it also supports air breathing and oxygen uptake.