What does swim bladder mean?
Definitions for swim bladder
swim blad·der
This dictionary definitions page includes all the possible meanings, example usage and translations of the word swim bladder.
Princeton's WordNet
air bladder, swim bladder, floatnoun
an air-filled sac near the spinal column in many fishes that helps maintain buoyancy
Wiktionary
swim bladdernoun
A gas-filled sac within the bodies of most fish that variously acts as a float, lung, sound-producing organ or an aid to hearing.
Wikipedia
Swim bladder
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish) to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming. Also, the dorsal position of the swim bladder means the center of mass is below the center of volume, allowing it to act as a stabilizing agent. Additionally, the swim bladder functions as a resonating chamber, to produce or receive sound. The swim bladder is evolutionarily homologous to the lungs. Charles Darwin remarked upon this in On the Origin of Species. Darwin reasoned that the lung in air-breathing vertebrates had derived from a more primitive swim bladder. In the embryonic stages, some species, such as redlip blenny, have lost the swim bladder again, mostly bottom dwellers like the weather fish. Other fish—like the opah and the pomfret—use their pectoral fins to swim and balance the weight of the head to keep a horizontal position. The normally bottom dwelling sea robin can use their pectoral fins to produce lift while swimming. The gas/tissue interface at the swim bladder produces a strong reflection of sound, which is used in sonar equipment to find fish. Cartilaginous fish, such as sharks and rays, do not have swim bladders. Some of them can control their depth only by swimming (using dynamic lift); others store fats or oils with density less than that of seawater to produce a neutral or near neutral buoyancy, which does not change with depth.
ChatGPT
swim bladder
A swim bladder, also known as an air bladder, is an internal gas-filled organ found in most fish. It allows them to control their buoyancy and maintain their position at different depths in the water without having to waste energy in swimming. The swim bladder works by adjusting the quantity of gas it contains in order to achieve neutral buoyancy.
Wikidata
Swim bladder
The swim bladder, gas bladder, fish maw or air bladder is an internal gas-filled organ that contributes to the ability of a fish to control its buoyancy, and thus to stay at the current water depth without having to waste energy in swimming. The swim bladder is also of use as a stabilizing agent because in the upright position the center of mass is below the center of volume due to the dorsal position of the swim bladder. Another function of the swim bladder is the use as a resonating chamber to produce or receive sound. The swim bladder is evolutionarily homologous to the lungs. Charles Darwin remarked upon this in On the Origin of Species.
Matched Categories
Numerology
Chaldean Numerology
The numerical value of swim bladder in Chaldean Numerology is: 8
Pythagorean Numerology
The numerical value of swim bladder in Pythagorean Numerology is: 2
Translations for swim bladder
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"swim bladder." Definitions.net. STANDS4 LLC, 2024. Web. 16 Apr. 2024. <https://www.definitions.net/definition/swim+bladder>.
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