Shallow Reservoirs
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Impact of artificial destratification on water availability of reservoirs in the Brazilian semiarid
Abstract: Field surveys and integral modelling were carried out to study the effect of bubble plumes on the flow hydrodynamics and the time-evolution of water temperature profiles in a shallow lake with maximum depth of about 4 m. Then, model simulations were performed to verify the feasibility of destratification of ten water-supply reservoirs with capaciti
An. Acad. Bras. Ciênc.. Publicado em: 30/09/2019
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2. The Cogollo Group and the oceanic anoxic events 1a and 1b, Maracaibo basin, Venezuela
ABSTRACTCarbonates of Cogollo Group (Apón, Lisure and Maraca formations) constitute the broader calcareous platform system originated during Aptian and Albian of Cretaceous in north-western South America, Maracaibo Basin, Venezuela. On the shallow shelf, a variety of calcareous sedimentary facies were deposited during marine transgressive and regressive cyc
Braz. J. Geol.. Publicado em: 2015-08
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3. New approaches for growth improvement in pejerrey Odontesthes bonariensis (Valenciennes, 1835) culture (Atherinomorpha: Atherinopsidae)
The pejerrey is the most important recreational species in shallow temperate lakes and reservoirs of Argentina and the attempts to develop its culture have started a century ago. A common constraint of pejerrey aquaculture is its poor growth under traditional intensive rearing techniques. The aim of this study was to evaluate the possibility to achieve and m
Neotrop. ichthyol.. Publicado em: 24/03/2015
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4. Predation on microcrustaceans in evidence: the role of chaoborid larvae and fish in two shallow and small Neotropical reservoirs
This study was focused on the predation upon microcrustaceans by an invertebrate predator (chaoborid larvae), and vertebrate predators (fish), in two small reservoirs in southeastern Brazil, with and without macrophytes, in two climatic periods (dry and rainy seasons). Chaoborus larvae were sampled in the limnetic zone, as they are scarce in the littoral, an
Nauplius. Publicado em: 2012-06
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5. Plankton diversity and limnological characterization in two shallow tropical urban reservoirs of Pernambuco State, Brazil
Diversidade planctônica, variáveis físicas e químicas e clorofila a foram analisadas em dois reservatórios urbanos rasos com diferentes graus de trofia, no estado de Pernambuco, nordeste do Brasil. Elevados níveis de eutrofização foram observados no reservatório de Apipucos, enquanto o reservatório do Prata foi considerado oligotrófico. Os valores
Anais da Academia Brasileira de Ciências. Publicado em: 26/04/2012
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6. Estudo paramétrico do processo de injeção de solventes em poços horizontais para reservatórios de óleos pesados
Existem no mundo diversos tipos de óleo que apresentam uma diversidade de valores de densidade e viscosidade, essas são características para identificar se um óleo é leve, pesado ou até mesmo ultrapesado. A ocorrência de óleo pesado vem aumentando sensivelmente e apontando uma necessidade de maiores investimentos na exploração de jazidas e conseque
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/09/2011
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7. Influência das frentes frias nos mecanismos de funcionamento da represa da UHE Carlos Botelho (Lobo/Broa) Itirapina SP, dos pontos de vista químico, físico e biológico
In Brazil there is a numerical predominance of river systems, which favors the construction of reservoirs. These reservoirs have great ecological, economic and social significance, so, the management, conservation and recovery of these systems are of fundamental importance with repercussions on the economy, social work and the uses of aquatic systems. Climat
Publicado em: 2010
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8. Sources and paths of organic matter in limnic systems application of stable isotopes technique in reservoirs and shallow lakes / Origem e destino do carbono em sistemas límnicos uso de técnicas isotópicas em reservatórios e lagos rasos
A metodologia de isótopos estáveis é uma ferramenta que superou em muitos sentidos as técnicas primariamente utilizadas para traçar rotas de elementos químicos no ambiente natural e, por isto, tem sido largamente utilizada em estudos limnológicos. Esta dissertação abordou princípios da ecologia isotópica, com foco em dois estudos, a saber: (1) est
Publicado em: 2007
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9. Estudo da contribuição potencial do solo no processo de salinização de águas superficiais em uma pequena bacia hidrográfica do semi-árido baiano
The reservoirs represent the main water source for the semi-arid region of the Brazilian Northeast. However, the presence of water doesn?t mean the lack of thirst, due to the action of various processes that affect the quality of the stored water. Among these, there?s the salinization, responsible for the ions accumulation in the water, making it inadequate
Publicado em: 2005
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10. SeqÃÃncias siluro-devoniana e eocarbonÃfera da Bacia do ParnaÃba, Brasil, como anÃlogos para a explotaÃÃo de hidrocarbonetos
The present study was applied to understanding the similar hydrocarbon reservoirs on the Silurian, Devonian and Early Carboniferous sequences of the ParnaÃba Basin. The exposure investigated are located in the central area in the Piauà state. These outcrops are geologicaly inserted in the southeastern border of the ParnaÃba Basin. Three outcrops constitui
Publicado em: 2005
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11. Litoestratigrafia e deformação cenzóica na região de Icapuí, Ceará, e implicações para a estruturação de campos de petróleo na borda ocidental da bacia Potiguar(NE do Brasil)
This thesis deals with the sedimentological/stratigraphic and structural evolution of the sedimentary rocks that occur in the NW continental border of the Potiguar Basin. These rocks are well exposed along coastal cliffs between the localities of Lagoa do Mato and Icapuí, Ceará State (NE Brazil). The sedimentological/stratigraphic study involved, at the ou
Publicado em: 2003
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12. Occurrence and distribution of bacterial indicators and pathogens in canal communities along the Texas coast.
Increased construction of residential canal communities along the southern coastline of the United States has led to a concern about their impact on water quality. Pollution of such dead-end canals is potentially hazardous because of their heavy usage for recreational activities. Coliforms, fecal coliforms, and salmonellae in the surface water and bottom sed