Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/2191
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Type: Artigo de Periódico
Issue Date: 2008
Authors: OLIVEIRA, Gláucia Caroline Silva de
RÊGO, Péricles Sena do
SCHNEIDER, Horacio
SAMPAIO, Maria Iracilda da Cunha
SOUZA, Marcelo Nazareno Vallinoto de
Title: Genetic characterisation of populations of the critically endangered Goliath grouper (Epinephelus itajara, Serranidae) from the Northern Brazilian coast through analyses of mtDNA
Citation: SILVA-OLIVEIRA, Gláucia C. et al. Genetic characterisation of populations of the critically endangered Goliath grouper (Epinephelus itajara, Serranidae) from the Northern Brazilian coast through analyses of mtDNA. Genetics and Molecular Biology, São Paulo, v. 31, n. 4, p. 988-995, 2008. Disponível em: <http://www.scielo.br/pdf/gmb/v31n4/gmb-31-4-aop5.pdf>. Acesso em: 24 mar. 2011. <http://dx.doi.org/10.1590/S1415-47572008005000016>.
Abstract: The Goliath grouper (Epinephelus itajara) is one of the most endangered species of fish of the subfamily Epinephelinae. Slow to develop and mature, and dependent on mangrove habitats for breeding, the species also suffers intense harvesting, which has reduced drastically in numbers in many areas. To contribute to the understanding of the characteristics of E. itajara populations, we conducted a molecular genetics study of the species, focusing on populations from the Northern Brazilian coast. The mtDNA control region (D-loop) of 116 individuals from five localities (Bragança, Ajuruteua, Parnaíba, Fortaleza and Natal) was analysed, and a sequence of 499 base pairs identified. Analyses of the sequences indicated that genetic variability was generally lower in E. itajara than in other endangered species of the genus. AMOVA found no significant grouping structure among the populations. Nested Clade Analysis revealed a significant association between genetic variability and geographic distribution among only three populations (Ajuruteua, Parnaíba and Natal). Genetic diversity was higher in populations from the Amazon region, which may be related to the better conservation of mangrove habitats in this area. Therefore, the present study could be used for the implementation of conservation and management measures in order to protect and consolidate these populations.
Keywords: Peixe
Genética de populações
Genética molecular
Filogeografia
Serranidae
Brasil - País
Região Norte - Brasil
Região Nordeste - Brasil
ISSN: 1415-4757
Appears in Collections:Artigos Científicos - FBIO/IECOS

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