platyfish การใช้

• The female southern platyfish's anal fin is fan shaped.
• The southern platyfish grows to a maximum overall length of.
• The variable platyfish is bred commercially for the aquarium hobby.
• The southern platyfish has been released probably due to fish farm or aquarium releases.
• In 1976, an aquarium variety of platyfish, " Xiphophorus maculatus " was found.
• IUCN lists the Monterrey platyfish, formerly widespread in Mexico, as Critically Endangered, upgraded from Endangered in 1996.
• Due to interbreeding with the southern platyfish or  platy, most swordtails in aquariums are hybrids to some degree.
• Some species, such as the southern platyfish, have both systems and a male can be determined by XY or ZZ depending on the population.
• It is a popular fish in the aquarium trade due to its prolific breeding, as are hybrids with other members of its genus, most notably the southern platyfish.
• Together with W . L . Minckley, he discovered a new species of platyfish, " Xiphophorus gordoni ", that they named in honor of Dr Myron Gordon.
• The "'Monterrey platyfish "'( " Xiphophorus couchianus " ) is a species of freshwater fish in live-bearer, it is native to the vicinity of Monterrey, Mexico.
• Sexual dimorphism is moderate, the male Monterrey platyfish growing to a maximum overall length of 4.0 cm ( 1.6 in ) and the female 6.0 cm ( 2.4 in ).
• Menopause also has been reported in a variety of other vertebrate species including elephants, short-finned pilot whales, killer whales, and other cetaceans, the guppy, the platyfish, the budgerigar, the laboratory rat and mouse, and the opossum.
• Within its range, three invasive fish species eastern mosquitofish ( " Gambusia holbrooki " ), green swordtail ( " Xiphophorus hellerii " ) and southern platyfish ( " X . maculatus " )  have established themselves, though their extent is unknown.
• Other unusual systems include the Swordtail fish; the Chironomus midges; the platypus, which has 10 sex chromosomes but lacks the mammalian sex-determining gene SRY, meaning that the process of sex determination in the platypus remains unknown; the juvenile hermaphroditism of zebrafish, with an unknown trigger; and the platyfish, which has W, X, and Y chromosomes.