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Identifying Nile tilapia strains and their hybrids farmed in Brazil using microsatellite markers PAB
Baggio,Rafael Antunes; Orélis-Ribeiro,Raphael; Boeger,Walter Antonio.
Abstract: The objective of this work was to evaluate a Bayesian model-based clustering method to identify the strains of Nile tilapia (Oreochromis niloticus) individuals from fish farms in Southern Brazil. Assignment methods using nine microsatellite loci were applied to differentiate individuals of five reference strains (GIFT, GST, Nilótica, Chitralada, and Saint Peter) and to identify individuals of unknown strains from fish farms near the Itaipu reservoir and in the Uruguay River basin. The procedure assigned the correct strain in more than 90% of the cases and was also able to detect hybrids between strains. The obtained results showed that several fish farms in Southern Brazil cultivate more than one tilapia strain and even interstrain hybrids. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oreochromis niloticus; Aquaculture; Strain certification.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016001001744
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Nassarius foveolatus (Gastropoda, Nassariidae), a new record of an exotic species in Brazil Pap. Avulsos de Zool. (São Paulo)
Gernet,Marcos de Vasconcellos; Belz,Carlos Eduardo; Baggio,Rafael Antunes; Birckolz,Carlos João; Santos,Elizângela da Veiga; Simone,Luiz Ricardo L.; Abbate,Daniel; Metri,Rafael.
Abstract Exotic species are those that occur in an area beyond their natural limit and they are considered invasive when they cause harm to the economy, environment, or human health. In coastal environments, ballast water and inlays on the hull and other parts of vessels are the main ways of introducing invasive aquatic alien species. Nassarius foveolatus (Dunker, 1847) is native from the Central and East Indian Ocean to the East China Sea. The first specimens (empty shells) of N. foveolatus were collected manually on November 11, 2017 on the Rocio footbridge, located in the Paranaguá Estuarine Complex, on the coast of the State of Paraná, southern Brazil. Posteriorly, live specimens were collected in other localities of this bay. It is already possible to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Invasive; Exotic; Mollusca; Nassarius foveolatus; Paraná coast.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100255
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