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| Garcia,Thiago D.; Ota,Renata R.; Ferreira,Dhiego G.; Nascimento,Raul H. C.; Galindo,Bruno A.; Pereira,Larissa S.; Zanatta,Augusto S.. |
| ABSTRACT When a river is dammed, impacts differ according to distance from the dam under consideration, and sites closer to the dam are more affected than distant ones. Damming a river changes the flow and landscape characteristics, which, in turn, change the hydrological, limnological and ecological dynamics, such as biological production, species distribution, and ecosystem structuring, functioning and services. This study evaluates the distribution pattern of the Siluriformes (catfish) fish species near a small hydroelectric power plant in the Jaguariaíva River, considering three distinct distances from the dam: upstream region, reservoir and downstream region. Samples were taken with gillnets between March 2013 and December 2014. The abundance and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fish assemblage; Ichthyofauna; Catfish; Paraná basin; Reservoir. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212020000100205 |
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| Galindo,Bruno A.; Ferreira,Dhiego G.; Apolinário-Silva,Caroline; Terra,Mariana C.; Aprígio,Nícollas G. O.; Ota,Renata R.; Ohara,Willian M.; Almeida,Fernanda S.; Sofia,Silvia H.. |
| ABSTRACT Brycon nattereri is an endangered Neotropical fish reported along conserved stretches of the upper Paraná, Tocantins and São Francisco rivers. Populations of this species have been very rare in some Paraná River sub basins. This study analyzes the genetic diversity and population structure of B. nattereri in a restricted area of occurrence recently identified in upper Paraná River basin. Seven microsatellite loci and 497 bp of D-Loop mitochondrial region were examined in 92 individuals from four points along the area of occurrence. Both molecular markers indicated a single population distributed along a stretch of the river approximately 80 km long. Although some of the data suggest an ancient bottleneck, current levels of genetic diversity (H E... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conservation; Endangered species; Molecular markers; Population genetics; Pirapitinga. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100208 |
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