Basin Of Draining
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Redescription of Schizodon dissimilis and appraisal of the dark barred species of the genus (Characiformes: Anostomidae)
RESUMO Schizodon dissimilis é redescrita com base em síntipos e outros espécimes coletados nos rios Parnaíba, Jaguaribe e Mearim, e um lectótipo e paralectótipos são designados. Schizodon dissimilis é distinta das espécies Amazônicas e de seus congêneres do sudeste do Brasil por possuir quatro barras transversais castanho-escuras sem uma listra lo
Neotrop. ichthyol.. Publicado em: 23/09/2019
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2. Ichthyofauna of Trairí river basin, Rio Grande do Norte state, northeastern Brazil: a century after the study of the naturalist Edwin Starks in the Papari lagoon
Abstract Fishes from the coastal basins of the Mid-Northeastern Caatinga ecoregion (MNCE) were first sampled by the Stanford expedition at the beginning of the 20th century, and published by Edwin C. Starks in 1913. This material included specimens from the Papary lake (= Papari lagoon) in the lower portion of the Trairí river basin, draining towards the ea
Pap. Avulsos Zool.. Publicado em: 25/03/2019
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3. IMPLICATIONS FOR PEAK FLOWS OF THE MARRECAS RIVER BASIN DUE TO CHANGES IN THE BRAZILIAN FOREST CODE
ABSTRACT Changes in the Brazilian Forest Code (BFC) have soften the criteria for recovery and conservation of permanent preservation areas (PPAs), enhancing processes related to surface runoff. The aim of this study is to understand the effects of changes in PPA classification criteria established by BFC of 2012 to the detriment of BFC from 1965 considering
Eng. Agríc.. Publicado em: 2018-04
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4. Review of the andean armored catfishes of the genus Dolichancistrus Isbrücker (Siluriformes: Loricariidae)
The loricariid catfish genus Dolichancistrus is reviewed and four species recognized. Species of Dolichancistrus are distinguished from each other by the degree of development of the pectoral-fin spine, the form of the distal margin of the pelvic fin, the relative size and form of the cheek plates, the pattern of odontodes along the margin of the snout, the
Neotrop. ichthyol.. Publicado em: 2012-09
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5. Floristic composition and phytogeography of the tree component of Araucaria Forest fragments in southern Brazil
The present study examined the floristic composition of three fragments of Araucaria Forest (AF) in the Planalto Catarinense region of southern Brazil as well as the floristic contextualization of these areas in relation to other remnant AF sites. Three AF fragments at different altitudes were analyzed in the municipalities of Campos Novos, Lages, and Painel
Braz. J. Bot.. Publicado em: 2012
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6. Levantamento dos níveis de radioatividade natural em águas do alto Vale do Ribeira à planície costeira do litoral sul do Estado de São Paulo / Assessment of natural radioctivity levels in waters from Higher Ribeira Valley until the southern Sao Paulo State coastal plain
The complex exchange of fluvial, subsurface and seawater within a coastal area directly affects global biogeochemical cycles and the application of isotopic tracers, mainly natural radionuclides from U and Th series, is a powerful tool to track sources and sinks of trace elements and nutrients to this systems. The unique Ra signature applied to quantify the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/11/2010
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7. Variação espaço-temporal da expansão urbana e da rede de drenagem da Bacia do Igarapé Grande na cidade de Boa Vista, Roraima
This study objectified the evaluation of the variation space-weather of urban expansion and of the net drainage of the basin of the narrow river Grande as a preponderant factor for the significant advance in the alteration of the natural draining of the water, whose consequence is sufficiently drastic in relation to the preservation of the environment. To ca
Publicado em: 2010
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8. Influência de níveis de base nas características morfossedimentares das bacias dos rios das Velhas e Jequitaí (MG)
The Velhas and Jequitaí river basins have together an asymmetric shape that drain northward from Quadrilátero Ferrífero to the northern Minas Gerais State. These two basins are affluent of São Francisco river in its right margin. The headwaters of Velhas and Jequitaí rivers are dominated by quartzites ridges structured during the Brazilian orogenic cycl
Publicado em: 2010
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9. Avaliação da estrutura genética do surubim, Pseudoplatystoma corruscans (Actinopterygii: Siluriformes) como subsídio para o repovoamento do submédio São Francisco
The São Francisco River is 2700 km long, draining areas of the States of Minas Gerais, Goias, Bahia, Pernambuco, Alagoas, and Sergipe, as well as part of the Federal District. Before the construction of Paulo Afonso Hydroeletric Power Plant, waterfalls of Paulo Afonso (north-eastern Brazil) and its respective lakes already constituted a natural obstacle to
Publicado em: 2010
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10. A influência do sistema Faxinal no Estado Ambiental da Bacia Hidrográfica do Rio Sete Saltos - PR
The Hydrographical Basin provides among its many potential natural features, such as, being a unit of management natural resource for easy definition. However, to diagnose the interaction between the physical and biotic aspects it is necessary to use techniques that allow this task. In this research it was used the Physical-Conservationist Diagnostic methodo
Publicado em: 2009
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11. Efeitos antrópicos sobre concentrações de metais alcalinos na região da microbacia do Arroio Araçá, Canoas - Rio Grande do Sul
This work presents alterations in the concentrations of alkaline metals sodium, lithium and potassium, in abiotic compartments, at Araçá stream micro-basin, located in Canoas, RS. Its spring is located in a low populational density region and crosses an elevated environmental impacted urban area. Its final course crosses an agricultural area. Samples of at
Química Nova. Publicado em: 2009
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12. Conflitos sócio-ambientais na micro-bacia hidrográfica do córrego Samambaia, no Distrito Federal
A questão da temática ambiental pode também ser vista sob a ótica do conflito, já que os recursos naturais são e serão objetos de disputas e interesses. Sob essa égide, as questões do meio ambiente podem ser classificadas segundo tipos diferentes de conflito, e decorrem da disputa ou desentendimento relacionados com o uso e/ou exploração dos recur
Publicado em: 2009