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	Provedor de dados Neotropical Ichthyology (2) Autor Carvalho,Daniel C. (2) Beheregaray,Luciano B. (1) Coimbra,Maria R. M. (1) Farias,Renata S. (1) Figueiredo,Rozzanno A. C. R. (1) Luz,Ronald K. (1) Nascimento,Wilka V. G. (1) Oliveira,Denise A. A. (1) Prosdocimi,Francisco (1) Sampaio,Iracilda (1) Silva,Bruno C. N. R. (1) Silva,Gênison C. (1) Mais... Palavra-chave Invasion biology (1) Lophiosilurus alexandri (1) Low genetic diversity (1) Neotropical (1) Population genetics (1) Relatedness estimator (1) Restocking (1) Sedentary behavior (1) Translocation (1) Tucunaré (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2014 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Analysis of propagule pressure and genetic diversity in the invasibility of a freshwater apex predator: the peacock bass (genus Cichla) Neotropical Ichthyology Carvalho,Daniel C.; Oliveira,Denise A. A.; Sampaio,Iracilda; Beheregaray,Luciano B.. An important step in invasive biology is to assess biological variables that could be used to predict invasion success. The study of genetics, evolution, and interactions of invasive and native species in invaded ranges provides a unique opportunity to study processes in population genetics and the capability of a species' range expansion. Here, we used information from microsatellite DNA markers to test if genetic variation relates to propagule pressure in the successful invasion of an apex predator (the Amazonian cichlid Cichla) into Southeastern Brazilian River systems. Invasive populations of Cichla have negatively impacted many freshwater communities in Southeastern Brazil since the 1960s. Reduction of genetic variation was observed in all invasive... Tipo: Info:eu-repo/semantics/article Palavras-chave: Invasion biology; Neotropical; Population genetics; Translocation; Tucunaré. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000100105 Genetic diversity and aquaculture conservation for a threatened Neotropical catfish Neotropical Ichthyology Farias,Renata S.; Silva,Bruno C. N. R.; Nascimento,Wilka V. G.; Silva,Gênison C.; Luz,Ronald K.; Prosdocimi,Francisco; Figueiredo,Rozzanno A. C. R.; Carvalho,Daniel C.; Coimbra,Maria R. M.. Abstract Due to the ecological importance of Lophiosilurus alexandri, the present work evaluated its genetic representativeness by comparing wild stocks to broodstocks that were kept at three restocking hatcheries along the São Francisco River. A total of 97 samples were genotyped for newly developed microsatellite markers. Low levels of genetic diversity (average alleles number of 4.2 alleles) were detected in all cases, being more severe in captive groups. Significant pairwise FST and DEST values, Structure, and DAPC analyses showed that wild animals were structured in two groups, and a third group was formed by captive animals, evidencing the need to adopt genetic criteria to retain genetic diversity in the hatcheries. For this reason, three full-sib... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lophiosilurus alexandri; Low genetic diversity; Relatedness estimator; Restocking; Sedentary behavior. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000300211 Registros recuperados: 2 Primeira ... 1 ... Última

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