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The GloFish is a patented and trademarked brand of fluorescently colored genetically modified aquarium fish.They have been created from several different species of fish: zebrafish were the first GloFish available in pet stores, and recently the black tetra, tiger barb, [1] rainbow shark, Siamese fighting fish, X-ray tetra, and most recently bronze corydoras [2] have been added to the lineup.
GloFish is a patented [14] technology which allows GM fish (tetra, barb, zebrafish) to express jellyfish and sea coral proteins [6] [15] giving the fish bright red, green or orange fluorescent colors when viewed in ultraviolet light.
Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America.It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe.
Black tetras of the leucistic aquarium variant. The black skirt tetra is a common fish that is widely available for purchase. Hobbyists often provide live foods such as Daphnia and mosquito larvae, and frozen foods like bloodworms. [citation needed] In a home aquarium. The species reaches sexual maturity at about two years of age.
Aquarium fish genetically modified to fluoresce in bright colours under white or ultraviolet light are now available commercially, under the trade name GloFish. The technology was originally developed to produce a fish capable of detecting environmental pollution . [ 5 ]
The tetra is a tropical, silver metallic-colored fish, with red-tipped fins and a black marking on the dorsal fin. The tetra is a hardy community fish for beginners, and is optimal for the beginning fish hobbyist. [4] It is also relatively large for a tetra, growing up to 7.5 cm (3 inches). [4] They can live up to 5 or 6 years.
If ovuliparity is used, most of the fishes have ovuliparity breeding strategy). [11] In oviparous fish, internal fertilisation requires the male to use some sort of intromittent organ to deliver sperm into the genital opening of the female. Examples include the oviparous sharks, such as the horn shark, and oviparous rays, such as skates.
The fish are also not caught by fish farmers during their breeding season. [9] The cardinal tetra, especially, is considered a renewable resource. [10] Project Piaba assesses the sustainability of the species farmed in the Rio Negro area by using the "F value" which estimates the portion of the catch from the total biomass. [11]