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The Siamese fighting fish (Betta splendens), commonly known as the betta, [2] is a freshwater fish native to Southeast Asia, namely Cambodia, Laos, Myanmar, Malaysia, Indonesia, Thailand, and Vietnam. [3][4] It is one of 76 species of the genus Betta, but the only one eponymously called "betta", owing to its global popularity as a pet; Betta ...
The peaceful betta or crescent betta (Betta imbellis) is a species of gourami native to Southeast Asia. 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 ...
Fish reproduction
Gouramis, or gouramies / ɡʊˈrɑːmi /, are a group of freshwater anabantiform fish that comprise the family Osphronemidae. The fish are native to Asia —from the Indian Subcontinent to Southeast Asia and northeasterly towards Korea. The name "gourami", of Indonesian origin, is also used for fish of the families Helostomatidae and Anabantidae.
Female reproductive system
Initial development is rapid: the eggs hatch after one day, and the fry are free-swimming two days thereafter. The kissing gourami does not care for its young. [2] Adults migrate through the rivers to shallow lagoons or into flooded forests to spawn. A female starts mating and the male simultaneously shed the eggs and sperm to the outside.
External fertilization. External fertilization is a mode of reproduction in which a male organism's sperm fertilizes a female organism's egg outside of the female's body. [1] It is contrasted with internal fertilization, in which sperm are introduced via insemination and then combine with an egg inside the body of a female organism. [2]
Betta mahachaiensis. Betta mahachaiensis is a species of bubble-nesting betta native to Thailand, [ 2] where it occurs naturally near the Gulf of Thailand. It is typically seen in stagnant waters in swamps, pools, and ponds. The species can be found in brackish waters, with salinity levels between 1.1 and 10.6 parts per thousand.