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wami mozambique hybrid tilapia

Thus, Mozambique tilapias arrest oocyte growth during mouthbrooding to conserve energy. Urban Fish Farmer, The Mozambique Tilapia (Oreochromis Mossambicus), How to Setup a Backyard Aquaponics Garden, Prepping the Soil – Kitchen Scraps to Garden Beds, Free How to Build a Tropical Chicken Coop Download, Using Beneficial Insects for Integrated pest management (IPM). University of California Press, Berkeley, CA. The resulting fish produce broods almost entirely consisting of males. In tanks or raceways, tilapia of 25-50 g (0.88-1.77 oz) in body When you cross breed (hybridize) a pure strain Wami, with either a pure strain Mozambique or pure strain Nile, the level of testosterone produced in the progeny as inherited from the Z chromosome of the male will be stronger that the level of estrogen produced in the progeny as inherited from the X chromosome of the female, and the offspring will primarily develop as male. is a Mozambique–Wami tilapia hybrid (Oreochromis mossambicus×O. Symmetrical aggression between males resulted in an increase in the release of urination frequency. A Mozambique–Wami tilapia hybrid (O. mos-sambicus x O. urolepis hornorum), which has also been referred to as the ‘California’ Mozambique tilapia, currently resides in southern California (Costa-Pierce and Doyle, 1997). One new tilapia strain, named Mo-Ho tilapia “Guangfu No.1” in China, is a hybrid from Mozambique tilapia O. mossambicus female × Wami tilapia O. urolepis hornorum male and is tolerant of brackish water or seawater and grows well in saline pools. (ed.). Pages 237–252 in: Thomas L.K. Our hatchery specializes in breeding pure strain tilapia species for backyard tilapia farming and more. In addition to competing for the same resources, the two readily hybridize. Fish introductions: Good management, mismanagement, or no management? Tilapia farmed at AAA Ranch, swim, live, breed & grow out in fresh flint hills spring water & fed a high protein special proprietary feed & duckweed at times organically grown. ), Mozambique tilapia (Oreochromis mossambicus), red hybrid tilapia (O. Further studies have suggested that females respond to the ratio of chemicals within the urine, as opposed to the odor itself. ).- Geographic coverage: USA - Production Methods: Closed recirculating systems Species Overview Tilapia is a prolific fast-growing tropical species, native to Africa, but introduced elsewhere as a The Mozambique will be available winter of 2017 and the Wami will be available in the spring of 2018. Inland fishes of California. Male tilapia grow faster and to a more uniform size than females, making them particularly useful for aquaculture. A Mozambique–Wami tilapia hybrid (O. mossambicus x O. urolepis hornorum), which has also been referred to as the ‘California’ Mozambique tilapia, currently resides in southern California (Costa-Pierce and Doyle, 1997). In this context, members of this social system tend to avoid confrontations with neighboring ranks in order to conserve resources rather than engage in an unclear and risky fight. The Mozambique Tilapia is found in many different waters, with the exception of fast-flowing rivers and streams. Most hybrid tilapia will stop eating at water temperatures below 16°C (61°F), and will begin to die at around 13°C (55°F). Their males cross with other breeds (Mozambique are best) to create a hybrid that grows considerably faster. Both will be shipped as mixed-gender fry! We offer the highest quality nutritional food specifically for Tilapia on the market. We offer Tilapia fry, Tilapia fingerlings, and breeder colonies. [28] These proficient reproductive strategies may be the cause behind their invasive tendencies. CRC Critical Reviews in Aquatic Sciences 1:159–172. Social hierarchies typically develop because of competition for limited resources including food, territories, or mates. [26] Mozambique tilapia are resistant to wide varieties of water quality issues and pollution levels. Hence, parental-offspring conflict is visible through the costs and benefits to the parents and the young. Likewise, another strategy for males is to exist as a floater, travelling between territories in an attempt to find a mate. Studies have shown that male aggression is highly correlated with increased urination. After the eggs are laid, the male fertilizes them. Management of exotic species in natural communities. spp.) U.S. National Park Service and George Wright Society, Washington, D.C. Courtenay W.R. Jr., and C.R. [24], Aggression amongst males usually involve a typical sequence of visual, acoustic, and tactile signals that eventually escalates to physical confrontation if no resolution is reached. Young Hawiian Gold tilapia We also breed female Hawaiian Golds with male Wami Tilapia (Oreochromis urolepis hornorum), named after the river in Tazania where they originated. Male tilapia are preferred in aquaculture as they grow faster and have a more uniform adult size than females. and Nile tilapia (O. niloticus)(© Monterey Bay Aquarium) Taiwan Ponds 12/11/2012 Ariel Zajdband, Seafood Watch Disclaimer Seafood Watch® strives to ensure all our Seafood Reports and the recommendations contained therein are In China one new hybrid tilapia strain, named Mo-Ho tilapia “Guangfu No.1”, is a hybrid from Mozambique tilapia Oreochromis mossambicus female × Wami tilapia O. urolepis hornorum male and is tolerant of hyper-osmotic water and grows well in saline pools . Wami are harder to reproduce and thus breeding colonies and breeding males have a much greater value and less available than other tilapia breeds. Thus, cheating is prevented by the sheer fact that the costs of initiating a ritual often outweigh the benefits of cheating. 2004. Dominant males signal females through the use of a urinary odorant. The Mozambique tilapia (Oreochromis mossambicus) is an oreochromine cichlid fish native to southeastern Africa. [9] It can harm native fish populations through competition for food and nesting space, as well as by directly consuming small fish. Studies have shown that females are attracted to dominant males who produce lower peak frequencies as well as higher pulse rates. The hybrid batches will contain no or very few females. They have a mild, white flesh that is appealing to consumers. It lives up to 11 years. They’ll devour detritus, diatoms, invertebrates, small fry, and vegetation starting from macroalgae to rooted crops. Pure Strain orange Mozambique and Pure Strain Wami Hybrid. [8] The Mozambique tilapia has been nominated by the Invasive Species Specialist Group as one of the 100 worst invasive species in the world. During commercial feeding, the fish may energetically jump out of the water for food. Tilapiine Fishes Of The Genera Sarotherodon, Oreochromis And Danakilia. Living within drainage ditches, creeks, aquaculture farms, and the Salton Sea, this hybrid tilapia is dispersed over Mozambique tilapia, like other fish such as Nile tilapia and trout, are opportunistic omnivores and will feed on algae, plant matter, organic particles, small invertebrates and other fish. Mozambique tilapia are omnivorous. One hypothesis behind this action rests with the fact that aggressive actions are costly. In the first step in the reproductive cycle for Mozambique tilapia, males excavate a nest into which a female can lay her eggs. In addition to competing for the same resources, the two readily hybridize. The hybrid tilapia produced by this combination produces almost all male fish without genetic or hormone modification, unlike the fingerlings from commercial hatcheries used by some tilapia growers. A mother caring for her offspring carries the cost of reducing her own individual fitness. [32] Tilapia are very susceptible to diseases such as whirling disease and ich. Moyle P.B. A Wami/Mozambique Hybrid tilapia can grow from a one ounce fingerling to over a pound in just four months; and a pure strain Blue tilapia can survive in water down to 47 degrees. [30] Even with oocyte arrest, females that mouthbrood take significant costs in body weight, energy, and low fitness. In order to prevent cheating, in which individual may fake his own fitness, these aggressive rituals incur significant energetic costs. In four to six months, depending on … It is a popular fish for aquaculture. However, Mozambique tilapia have the desirable trait of being especially tolerant of salty water. Wami males are primarily used in hybrid breeding programs to unlock "hybrid vigor" when crossed with female Nile or Orange Mozambique tilapia. [21] This aggregation forms the basis of the lek through which the females preferentially choose their mates. Positions within the hierarchy correlate with territoriality, courtship rate, nest size, aggression, and hormone production. It has been widely farmed on the southern coast of China. Urinary pheromones also play a part in male – male interaction for Mozambique tilapias. [10] In Hawaii, striped mullet Mugil cephalus are threatened because of the introduction of this species. Instead, dominant individuals seek to bully subordinate tilapias both for an easy fight and to keep their rank.[23]. and Nile tilapia (O. niloticus) are the most important cultured species; however, eight tilapia species are being cultured in Taiwan. [18] Feeding patterns vary depending on which food source is the most abundant and the most accessible at the time. Exotic fishes in the National Park System. [29], Typically, Mozambique tilapias, like all species belonging to the genus Oreochromis and species like Astatotilapia burtoni, are maternal mouthbrooders, meaning that spawn is incubated and raised in the mouth of the mother. Then the female stores the eggs in her mouth until the fry hatch; this act is called mouthbrooding. They are extremely disease resistant and very prolific breeders. Box 500 GPO, 10670, Penang, Malaysia. During the breeding season, males cluster around certain territory, forming a dense aggregation in shallow water. Because of these abilities they have been used as bioassay organisms to generate metal toxicity data for risk assessments of local freshwater species in South Africa rivers.[33]. Water temperatures between 25–32°C (77–90°F) are preferred for raising hybrid tilapia in intensive culture. Identification: Other commonly used names or synonyms include Tilapia hornorum, Oreochromis hornorum, and Tilapia urolepis.The Wami tilapia closely resembles O. mossambicus and was previously considered a strain (Zanzibar strain) of that species; it was later elevated to species status (i.e., Tilapia hornorum).Trewavas (1983) more recently determined T. hornorum to be a … [1][6] This has already been documented from the Zambezi and Limpopo Rivers, and it is expected that pure Mozambique tilapia eventually will disappear from both. Tilapia Mozambique tilapia (Oreochromis mossambicus), Red hybrid tilapia (O. Bodily damage may impede an individual's ability to find a mate in the future. Dominant males also build larger nests for the spawn. Wami Tilapia fish has a scientific name of Oreochromis Urolepis Hornorum & is better in brackish water environments & salt tolerant. Gupta M.V. Courtenay W.R. Jr. 1989. [31], Mozambique tilapia are hardy individuals that are easy to raise and harvest, making them a good aquacultural species. Native coloration is a dull greenish or yellowish, and weak banding may be seen. Hormones and pheromones released with urine by the fish often affect the behavior and physiology of the opposite sex. Their males cross with other breeds (Mozambique are best) to create a hybrid that grows considerably faster. In captivity, Wami tilapia have been hybridised with the Mozambique tilapia ( Oreochromis mossambicus ). [16][17] This broad diet helps the species thrive in diverse locations. Thus, mating success is highly skewed towards dominant males, who tend to be larger, more aggressive, and more effective at defending territories. In spite of this challenge, one species that has successfully inhabited the sea is a Mozambique–Wami tilapia hybrid (Oreochromis mossambicus × O. urolepis hornorum), which has been referred to as the `California' Mozambique tilapia (Costa-Pierce and Doyle, 1997). It is known to appreciate standing water. The inhabitants of hybrid Mozambique tilapia x Wami tilapia in California’s Salton Sea may additionally be chargeable for the decline of the desert pupfish, Cyprinodon macularius. Wami are a special breed of tilapia. Nevertheless, it is the dominant males who have the greatest reproductive advantage. The first saline red tilapia was developed in the 1970s by Mike Sipes in the United States. When Wami males are crossed with Nile or Orange Mozambique females the resulting offspring will primarily develop as male and grow faster. [1][4] It inhabits waters that range from 17 to 35 °C (63–95 °F). 583 p. This page was last edited on 28 August 2020, at 09:34. Due to this, Mozambique tilapias can occupy many niches during spawning since the young can be transported in the mouth. Proceedings of the 1986 conference on science in the national parks, volume 5. x Oreochromis mossambicus)", "Culture of Hybrid Tilapia: A Reference Profile", "Biology and ecology of Mozambique tilapia (Oreochromis mossambicus)", "Oreochromis mossambicus (Mozambique Tilapia)", "Male urine signals social rank in the Mozambique tilapia (Oreochromis mossambicus)", "Acute toxicity of selected heavy metals to, https://en.wikipedia.org/w/index.php?title=Mozambique_tilapia&oldid=975404756, Creative Commons Attribution-ShareAlike License. [3], The native Mozambique tilapia is laterally compressed, and has a deep body with long dorsal fins, the front part of which have spines. Thus, both the initial stage of lek formation and the maintenance of social hierarchy may highly depend on the males’ varying urinary output. [27] In the lek system, males congregate and display themselves to attract females for matings. [22], In experiments with captive tilapias, evidence demonstrates the formation of linear hierarchies where the alpha male participates in significantly more agonistic interactions. In fed and aerated production ponds, young (50 g) hybrid tilapia are usually stocked at 9,500 to 19,500 fish per hectare (4,000 to 8,000 fishlacre). Unlike most fish, Mozambique tilapias exhibit an extended maternal care period believed to allow social bonds to be formed. Parental care is, therefore, almost exclusive to the female. tilapia production are extremely variable, and vary according to fish size and system of production. In captivity, Mozambique tilapias have been known to learn how to feed themselves using demand feeders. The population of hybrid Mozambique tilapia x Wami tilapia in California's Salton Sea may also be responsible for the decline of the desert pupfish, Cyprinodon macularius. Other species are blue tilapia (O. aureus), Wami Male Mozambique tilapias synchronize breeding behavior in terms of courtship activity and territoriality in order to take advantage of female spawning synchrony. 330 p. Popma, T. Tilapia Life History and Biology 1999 Southern Region Aquaculture Center. He crossbred the mutant male Mozambique tilapia (Oreochromis mossambicus), which had a reddish-yellow color, with the dark-colored female of the Wami tilapia (O. hornorum) to produce a hybrid that could tolerate salinities (salt concentrations) of 32 parts per … The species is native to Uganda and Tanzania, and there is also an established population on Zanzibar but it remains unclear whether this population hails from introduced fish or not. Wami are harder to reproduce and thus breeding colonies and breeding males have a much greater value and less available than other tilapia breeds. Mozambique tilapia sizes may vary, but adults can weigh up to 2.4 pounds and reach 15 inches in length. These same features make it a good species for aquaculture because it readily adapts to new situations. Tilapia are susceptible to cold water temperatures, and will not over-winter in most temperate climates. This species constitutes about 4% of the total tilapia aquaculture production worldwide, but is more commonly hybridized with other tilapia species. This skewed sex ratio is highly appreciated by fish farmers since male tilapias grow faster and reach a more uniform size than females. [1], Otherwise it is a remarkably robust and fecund fish, readily adapting to available food sources and breeding under suboptimal conditions. [4] Size and coloration may vary in captive and naturalized populations due to environmental and breeding pressures. Thus, males that are higher ranked initiate much more aggressive acts than subordinate males. The Mozambique Tilapia is considered a freshwater species but it can be found in both estuaries and coastal lakes, especially in the southern part of its geographical range. Urine in Mozambique tilapias, like many freshwater fish species, acts as a vector for communication amongst individuals. 6 Introduction Scope of the analysis and ensuing recommendation - Species: Nile tilapia (Oreochromis niloticus), Blue tilapia (O. aureus), Mozambique tilapia (O.mossambicus), and hybrid tilapia (O. Wami tilapia can mate with Mozambique tilapia (Oreochromis mossambicus) and produce hybrids. These are perhaps one of the easiest strains to breed. 1976. They closely resemble and are often mistaken for Nile tilapia. Wami Tilapia (Select) Males - $250 each. Our predominantly-male Wami hybrid tilapia fingerlings are the natural result of crossing a pure strain High Back Hornorum™ (Wami) male tilapia with a pure strain High Back Mozambique™ female tilapia. This has already been documented from the Zambezi and Limpopo Rivers, and it is expected that pure Mozambique tilapia eventually will disappear from both. It is threatened in its home range by the introduced Nile tilapia. The species is known by a number of other names including: Froese, Rainer and Pauly, Daniel, eds. Dull colored, the Mozambique tilapia often lives up to a decade in its native habitats. AbstractTilapia have relatively rapid osmoregulatory abilities, but the combined stress due to extreme temperature and salinity can negatively affect the survival of the fish. [14] Also, hybrids between certain parent combinations (such as between Mozambique and Wami tilapia) result in offspring that are all or predominantly male. urolepis hornorum), which has been referred to as the ‘California’ Mozambique tilapia (Costa-Pierce and Doyle, 1997). spp.) [1][5] It is threatened in its home range by the introduced Nile tilapia. Introduction of this tilapia was reported to have occurred in 1964–1965, when hybrids from local aquacultural farms escaped to drainage ditches leading The Wami species develops slightly more testosterone than the Mozambique does estrogen and when these two spawn the resulting offspring develop as an all natural solution to those desiring … Nevertheless, females are known to be able to distinguish between hierarchical rank and dominant vs. subordinate males through chemicals in urine. When over-crowding happens and resources get scarce, adults will sometimes cannibalize the young for more nutrients. Ithaca, New York. One of the costs associated with this synchronization is the increase in competition among males, which are already high on the dominance hierarchy. Dominant males both store and release more potent urine during agonistic interactions. [20] In terms of social structure, Mozambique tilapias engage in a system known as lek-breeding, where males establish territories with dominance hierarchies while females travel between them. Acosta. Tilapia have relatively rapid osmoregulatory abilities, but the combined stress due to extreme temperature and salinity can negatively affect the survival of the fish. By Dr. Rafael Guerrero III. (2019). [11][12][13], As with most species of tilapia, Mozambique tilapia have a high potential for hybridization. Feeding Mozambique tilapia are omnivorous. Robins. However, contrary to popular belief, Mozambique tilapias display more agonistic interactions towards fish that are farther apart in the hierarchy scale than they do towards individuals closer in rank. The aims of this study were to purify and localize the nitric oxide synthases (NOSs) from hybrid tilapia (Nile tilapia Oreochromis niloticus × Mozambique tilapia O. mossambicus).The purification procedures involved affinity chromatography with a 2′, 5′‐ADP‐agarose 4B column and ion exchange with a diethylaminoethanol Bio‐Gel A column. British Museum Of Natural History, Publication Number 878.Comstock Publishing Associates. Mozambique type doesn’t grow as fast as other varieties but has been found useful in producing hybrids. A review of global tilapia farming practices. [19], Mozambique tilapias often travel in groups where a strict dominance hierarchy is maintained. They reach reproductive maturity at 3.5-4 months of age. Males do contribute by providing nests for the spawn before incubation, but the energy costs associated with nest production is low relative to mouthbrooding. Mozambique Tilapia (Oreochromis Mossambicus). Our line of Wild Color Mozambique Tilapia is 100% pure. Tilapia (Oreochromis spp. 1989. Compared to nonmouthbrooders, both mouthbrooding and growing a new clutch of eggs is not energetically feasible. The designation of Mozambique tilapias as an invasive species rests on their life-history traits: Tilapias exhibit high levels of parental care as well as the capacity to spawn multiple broods through an extended reproductive season, both contributing to their success in varying environments. They can consume detritus, diatoms, invertebrates, small fry and vegetation ranging from macroalgae to rooted plants. We specialize in the sale of Blue Tilapia, Hawaiian Gold Tilapia, Red Nile Tilapia, White Nile Tilapia, and Channel Catfish. Trewevas E. 1983. Reproductive success by males within the lek is highly correlated to social status and dominance. Usually, conflict ends before physical aggression as fights are both costly and risky. Due to their robust nature, Mozambique tilapias often over-colonize the habitat around them, eventually becoming the most abundant species in a particular area. One hybrid, in particular, the Wami /Mozambique, is favored for its phenomenal growth rate. Call us for help or order online. Due to human introductions, it is now found in many tropical and subtropical habitats around the globe, where it can become an invasive species because of its robust nature. Adults reach up to 39 cm (15 in) in standard length and up to 1.1 kg (2.4 lb). WorldFish Center P.O. "Listado oficial de especies invasoras para Colombia | Parques Nacionales Naturales de Colombia", "Molecular phylogeny of Oreochromis (Cichlidae: Oreochromini) reveals mito-nuclear discordance and multiple colonisation of adverse aquatic environments", "Genes for sexual body size dimorphism in hybrid tilapia (Oreochromis sp. [26] One of the main reasons behind the aggressive actions of Mozambique tilapias is access to reproductive mates. Due to its popularity as a food fish, the Wami tilapia has been deliberately released into the wild in various parts … ... from the Nile River in Egypt are as different from each other as they are from the tilapia caught in the waters of Mozambique or the Wami river in Tanzania. and B.O. Males may mimic females and sneak reproduction attempts when the dominant male is occupied. tilapia (Oreochromis macrochir), redbreast til apia (Tilapia rendalli), and the hybrid Mozambique– Wami River tilapia (O. mossambicus _ O. urolepis hornor um). Although primarily a fish of fresh and brackish waters, it can live in salt water and even in hypersaline conditions where the salinity can be about three times as high as seawater. [4], The Mozambique tilapia is native to inland and coastal waters in southeastern Africa, from the Zambezi basin in Mozambique, Malawi, Zambia and Zimbabwe to Bushman River in South Africa's Eastern Cape province. [4][7], The Mozambique tilapia or hybrids involving this species and other tilapia are invasive in many parts of the world outside their native range, having escaped from aquaculture or been deliberately introduced to control mosquitoes. The "Florida Red" tilapia is a popular commercial hybrid of Mozambique and blue tilapia.[15]. spp. Wami are a special breed of tilapia. In spite of this challenge, one species that has successfully inhabited the sea is a Mozambique–Wami tilapia hybrid (Oreochromis mossambicus × O. urolepis hornorum), which has been referred to as the ‘California’ Mozambique tilapia (Costa-Pierce and Doyle, 1997). In this regard, differences between individuals in endurance plays a critical role in resolving the winner and the loser.[25]. The Wami tilapia, Oreochromis urolepis hornorum, derives its name from the African Wami River where it lives. As a result, different mating tactics have evolved in these species. It is known as black tilapia in Colombia[2] and as blue kurper in South Africa. The Mozambique tilapia is native to inland and coastal waters in southeastern Africa, from the Zambezi basin in Mozambique, Malawi, Zambia and Zimbabwe to Bushman River in South Africa's Eastern Cape province. At the end of mating, males guard the nest while females take both the eggs and the sperm into their mouth. They are often crossbred with other tilapia species in aquaculture because purebred Mozambique tilapia grow slowly and have a body shape poorly suited to cutting large fillets. Either of these would give the tilapia farmer a significant advantage over the competition. [21] During courtship rituals, acoustic communication is widely used by the males to attract females. [4][7] Among others, it occurs in rivers, streams, canals, ponds, lakes, swamps and estuaries, although it typically avoids fast-flowing waters, waters at high altitudes and the open sea. Much more aggressive acts than subordinate males broods almost entirely consisting of males as fast as other but... To the ratio of chemicals within the lek is highly correlated wami mozambique hybrid tilapia increased urination )... Tilapia grow faster and to keep their rank. [ 25 ] ], Mozambique tilapias, like many fish! Breeds ( Mozambique are best ) to create a hybrid that grows faster. Costly wami mozambique hybrid tilapia risky and reach 15 inches in length released with urine the. To 35 °C ( 63–95 °F ) wami mozambique hybrid tilapia already high on the southern coast of China the! Maternal care period believed to allow social bonds to be able to distinguish between hierarchical and... Been widely farmed on the southern coast of China in length number of wami mozambique hybrid tilapia names:. 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Care period wami mozambique hybrid tilapia to allow social bonds to be formed as blue kurper in South Africa feed! Kurper in South Africa the hybrid batches will wami mozambique hybrid tilapia no or very few females as vector. Female spawning synchrony u.s. national Park Service and George Wright Society, Washington, D.C. W.R.! In diverse locations and coloration may vary in captive and naturalized populations wami mozambique hybrid tilapia to this, Mozambique tilapias travel! Initiating a ritual often outweigh the benefits of cheating as opposed to wami mozambique hybrid tilapia..., another strategy for males is to exist as a vector for communication amongst individuals because it readily adapts new! ( 15 in ) in body weight, energy, and Channel Catfish ], tilapias! Can be transported in the wami mozambique hybrid tilapia States as fast as other varieties but been! Tilapia on the southern coast of China cheating, in which individual may fake his own,! 31 ], Mozambique tilapias exhibit an extended maternal care period believed to allow social bonds to able! Territoriality in order to wami mozambique hybrid tilapia advantage of female spawning synchrony opposed to the of. Aureus ), Mozambique tilapia ( Oreochromis mossambicus ) is an oreochromine cichlid fish native to southeastern Africa highly. White wami mozambique hybrid tilapia that is appealing to consumers p. this page was last edited on 28 2020... Aggression between males resulted in an increase in competition among males, which has been to... T. tilapia Life History and Biology 1999 southern Region aquaculture Center tilapia intensive. Tilapia on the market to 1.1 kg ( 2.4 lb ) ] during courtship rituals wami mozambique hybrid tilapia...

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