|
|
|
|
|
| Aquino,Pedro De Podestà Uchôa de; Schneider,Mariana; Silva,Maria Júlia Martins; Fonseca,Claudia Padovesi; Arakawa,Henrique Breda; Cavalcanti,Douglas Rodrigues. |
| O objetivo do presente estudo foi realizar o inventário da fauna íctica dos córregos do Parque Nacional de Brasília no Distrito Federal e caracterizar a estrutura da comunidade íctica ao longo dos cursos d'água. Foram amostrados córregos das sub-bacias do Bananal e Santa Maria/Torto na região hidrográfica do Alto Rio Paraná. Esses cursos d'água apresentam bom estado de preservação, evidenciado na integridade de suas características ambientais naturais e na manutenção dos componentes biológicos nativos. Um total de 8.614 indivíduos, distribuídos em quatro ordens e nove famílias, foram coletados. A ordem com maior número de espécies foi a Characiformes, seguida por Siluriformes. Das 28 espécies encontradas 11 são novas para a ciência. Apenas a espécie... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cabeceiras; Diversidade íctica; Endemismo; Conservação do Cerrado. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032009000100021 |
| |
|
|
| Couto,Thiago Belisário d'Araújo; Aquino,Pedro De Podestà Uchôa de. |
| This study aims to characterize the spatial and seasonal distribution of the fish assemblage and evaluate the integrity of streams in a sustainable use area that includes integral protection conservation units in Distrito Federal, Central Brazil (Cerrado biome). For the study, 12 stretches of 8 streams were sampled in 2008 (dry season) and 2009 (wet season). For that evaluation was estimated the Physical Habitat Index (PHI), vegetation cover (VC), pH, dissolved oxygen, turbidity, and conductivity. We recorded 22 species, about eight undescribed species, by a total of 2,327 individuals. The most representative families in number of species were Characidae (31.8%), Loricariidae (31.8%), and Crenuchidae (13.6%). Knodus moenkhausii was the most abundant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; Habitat quality; Headwaters; Upper Paraná river. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000200023 |
| |
|
|
| Schneider,Mariana; Aquino,Pedro De Podestà Uchôa de; Silva,Maria Júlia Martins; Fonseca,Claudia Padovesi. |
| The aim of this study was to determine the trophic structure of the fish community in the Bananal stream subbasin, which belongs to a well-preserved Cerrado area (Brazilian Savanna) in Brasília National Park, Brazil. We also evaluated the influence of environmental variations in the diet of fish species. Four samples were taken in each 30 m long established transect, two in the rainy season and two in the dry season. A total of 1,050 stomachs of the 13 most abundant species were analyzed. A total of 36 food items were consumed, where 24 were autochthonous, 8 allochthonous, and 4 of undetermined origin. Non-metric multidimensional scaling (NMDS) analysis, in addition to the results of frequency of occurrence and abundance charts, was used to determine four... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feeding guilds; Seasonal variation; Stream fish; Trophic ecology. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252011000300011 |
| |
|
|
|
