Results 51 to 60 of about 48,745 (211)

São Francisco river Integration Project, Eastern Axis: losses analysis and performance indicators

RBRH, 2017
Water scarcity is an old problem in the brazilian Northeast semiarid region and limits the economic and social development of the region. To mitigate negative impacts of this situation, the National Integration Ministry elaborated the São Francisco River
Emmanuel Eduardo Vitorino de Farias, Wilson Fadlo Curi, Laudízio da Silva Diniz   +2 more
doaj   +1 more source

Análise geoquímica dos sedimentos de um curso de água contaminado por metais pesados na área de uma unidade fabril metalúrgica, Minas Gerais, Brasil [PDF]

, 2014
Mining and metallurgical industries are the most responsible for heavy metal contamination. These contaminants are often associated to poor management strategies and the lack of suitable containment areas.
Araújo, António, Dias, Nuno, Fonseca, Rita, Martins, Luísa, Pinho, Catarina   +4 more
core  

Modeling river delta formation

, 2007
A new model to simulate the time evolution of river delta formation process is presented. It is based on the continuity equation for water and sediment flow and a phenomenological sedimentation/ erosion law.
COLEMAN, Czir  k, Giacometti, H. J. Herrmann, H. Seybold, J. S. Andrade, Kim, Wright   +7 more
core   +2 more sources

New insights into Ituglanis (Siluriformes: Trichomycteridae) diversity in Bahia State, eastern Brazil: Description of a new species and conservation status reappraisal

Journal of Fish Biology, EarlyView.
Abstract The northeastern Atlantic Forest of Brazil harbours a remarkable diversity of species of Trichomycteridae, many of which remain poorly understood. This study describes a new species of Ituglanis, endemic to the Ribeirão São Roque, a stream tributary of Rio Piabanha, an affluent of Rio Colônia basin, Bahia State, Brazil.
Paulo J. Vilardo, Axel M. Katz, Wilson J. E. M. Costa   +2 more
wiley   +1 more source

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Tantas águas, quantas histórias, diferentes narrativas : o São Francisco dos viajantes [PDF]

, 2009
Neste presente artigo faremos a leitura do rio São Francisco a partir dos relatos de viagem de quatro viajantes estrangeiros dos oitocentos. A literatura de viagem constitui fonte inesgotável de informações a respeito desse rio, seja de natureza técnica,
Brasil, Vanessa Maria
core   +1 more source

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus

Journal of Fish Biology, EarlyView.
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Gabriel M. Yazbeck, Gésica Aparecida Santana Nascimento, Leiliane Campos Carvalho, Raíssa Cristina Dias Graciano, Rosiane de Paula Santos, Rafael Sachetto Oliveira   +5 more
wiley   +1 more source

Inter-annual variability on the water quality in the Lower São Francisco River (NE-Brazil)

Acta Limnologica Brasiliensia
: Aim This study characterized the water quality in the lower São Francisco River (NE-Brazil).This research represents the first work to be carried out in the lower sector of the São Francisco river aiming to quantify and compare limnological variables,
Paulo Ricardo Petter Medeiros, Geórgenes Hilário Cavalcante, Nilva Brandini, Bastiaan Adriaan Knoppers   +3 more
doaj   +1 more source

Evolution of Urucuia Aquifer System contribution to São Francisco river, Brazil

Revista Águas Subterrâneas, 2017
The Urucuia Aquifer System (UAS) is the most important aquifer located in the São Francisco river watershed, with high productivity, maintains large irrigated areas and represents about 41% of the basin’s groundwater resources.
Roger Dias Gonçalves, Bruno Zanon Engelbrecht, Hung Kiang Chang   +2 more
doaj   +1 more source

Infestation of grape Vitis vinifera by Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in Sub-Medium Sao Francisco Valley, Brazil. [PDF]

, 2017
The objective of this study was to assess the infestationlevel in grapes, Vitis vinifera, by the medfly, Ceratitis capitata in the São Francisco River Valley (SFV).
CARVALHO, R. S., DAMASCENO, I. C., HABIBE, T. C., HAJI, F. N. P., MALAVASI, A., NASCIMENTO, A. S., PARANHOS, B. A. J., VIANA, R. E.   +7 more
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