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Betta imbellis has a pair of suprabranchial chambers that each house a labyrinth organ, a complex bony structure lined with thin, highly vascularised respiratory epithelium. The labyrinth organ is a morpho‐physiological adaptation that allows the B. imbellis to extract oxygen from air. This adaptation allows the species to persist in extreme ...
A few fish defy the norm and live up to 10 years of age, according to Spruce Pets. A betta fish's lifespan can be impacted by the care it receives, WebMD reports. Bettas may live longer if their ...
Betta splendens can be hybridised with B. imbellis, B. mahachaiensis, and B. smaragdina, though with the latter, the fry tend to have low survival rates. In addition to these hybrids within the genus Betta , intergeneric hybridisation of Betta splendens and Macropodus opercularis , the paradise fish, has been reported.
A useful distinction is that, while the generic name Betta is italicized and capitalized, when used as a common name it is usually neither italicized nor capitalized. [5] The common name of B. pugnax, for example, is thus Penang betta. Betta splendens, the Siamese fighting fish, is often referred to simply as a "betta" in the U.S.
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As labyrinth fish, Betta mahachaiensis have a pair of suprabranchial chambers that each house an air-breathing organ known as the labyrinth organ, a complex bony structure lined with thin, highly vascularised respiratory epithelium. The labyrinth organ is a morpho-physiological adaptation that allows labyrinth fish to extract oxygen from air.
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Betta pallifina are a mouthbrooding species of betta. The male is the caretaker, holding the fry in his mouth for up to three weeks. In captivity, these fish are very easy to breed. During spawning, which can take several hours, the male embraces the female.