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Paschoalini,Alessandro Loureiro; Perini,Violeta da Rocha; Ribeiro,Dirceu Marzulo; Formagio,Paulo Sérgio; Rizzo,Elizete; Bazzoli,Nilo. |
The alterations to the hydrologic regime downstream from hydroelectric dams may cause an impact on the reproductive success of fishes. This study aimed to analyse the influence of the physical and chemical parameters of the water of the Grande and Pardo Rivers on gonadal maturation, oocyte diameter, follicular atresia and biological indices of Pimelodus maculatus collected from three river sections: Grande River, downstream from the Porto Colômbia dam (S1), Grande River, downstream from the confluence with the Pardo River (S2) and in the Pardo River channel (S3). Males and females captured in S1 presented significantly higher average values for total length and body weight than those captured in S2 and S3. The gonadosomatic index values were significantly... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abiotic factors; Dam impacts; Environmental impacts; Gonadosomatic index. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000300615 |
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Carvalho,Daniel Cardoso; Perini,Violeta da Rocha; Bastos,Alex Schomaker; Costa,Igor Rodrigues da; Luz,Ronald Kennedy; Furtado,Carolina; Prosdocimi,Francisco. |
Abstract Lophiosilurus alexandri is an endemic catfish from the São Francisco River Basin (Brazil) popularly known as pacamã, which has economic potential for aquaculture farming. The mitochondrial genome was sequenced for the threatened Neotropical catfish L. alexandri. Assembly into scaffolds using MIRA and MITObim software produced the whole, circularized mitochondrial genome, which comprises 16,445 bp and presents the typical gene arrangement of Teleostei mitochondria. A phylogenomic analysis was performed after the concatenation of all proteins obtained from whole mitogenomes of 20 Siluriformes and two outgroups. The results confirmed the monophyly of nine families of catfishes and also clustered L. alexandri as a sister group to the family... |
Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Mitogenome; Fish; Next-generation-sequencing; Illumina; Pseudopimelodidae. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400674 |
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