Estudo da vazão específica nas bacias hidrográficas dos rios Aguapeí e Peixe como subsídio à gestão dos recursos hídricos

A área de estudo deste trabalho engloba as bacias hidrográficas dos rios Aguapeí e Peixe, localizadas a Oeste do Estado de São Paulo. Estas por sua vez estão vinculadas aos Comitês de Bacias Hidrográficas Aguapeí e Peixe (CBH-AP). Diante da iminência da implementação da política de cobrança pelo uso dos recursos hídricos nessa área, o presente trabalho apresenta em linhas gerais o estudo da vazão específica de forma que os resultados possam contribuir com os órgãos públicos de gestão a fim de que se execute uma gestão mais efetiva dos recursos hídricos. Com base em dados hidrológicos das estações fluviométricas inventariadas através do Sistema Integrado de Gestão de Recursos Hídricos do Estado de São Paulo (SIGRH) e da Agência Nacional de Águas (ANA) nas duas bacias hidrográficas, procedeu-se o estudo da vazão específica. Os resultados desses estudos apontam para uma maior variabilidade da vazão específica média na bacia hidrográfica do rio do Peixe, uma vez que ao longo da série histórica essa bacia apresenta maiores valores de vazão, foi possível também observar as mudanças no comportamento da vazão hidrológica nas duas bacias hidrográficas, ou seja, através dos três períodos hidrológicos identificados foi possível depreender que a vazão específica média em um período se mostra bem distribuída em ambas as bacias hidrográficas, em outro período hidrológico essa distribuição já se apresenta mais desigual. Tais informações possibilitam aos órgãos de gestão um planejamento mais refinado e eficiente

Estudo dos mixozoários (Myxozoa : Myxosporea) parasitos dos peixes characiformes Acestrorhynchus lacustris (Lütken, 1875) e Steindachnerina insculpta (Fernández-Yépez, 1948) coletados no Rio do Peixe, médio Rio Tietê, SP, Brasil

The São Paulo State has as one of its main rivers the Tietê, which is an extremely important source because of its biodiversity, use in navigation and mainly as direct supplier of water for thousands of people in the region. Currently, the biodiversity of marine and freshwater ecosystems has been threatened, primarily by environmental problems resulting from the degradation of ecosystems, an example is the stretch of the Middle Tietê River, where the Barra Bonita dam (SP) focused virtually the whole load organic effluents from the metropolitan region of São Paulo, leading to eutrophication with the loss of water quality. This basin is located in the Peixe’s River, a tributary of the Barra Bonita whose sources are on the slopes of the Cuesta de Botucatu, presenting an altitudinal gradient in a good state of conservation and water quality. From another perspective, the studies related to parasites and other pathogens of aquatic organisms have considerably increased the relevance, especially those hosts with potential for growing and marketing, given the significant increase these activities in Brazil and worldwide. Among the agents responsible for diseases in fish are the myxosporean, which can cause major economic damage, with high mortality ratios. Based on the above, this study evaluated the biodiversity of myxosporean parasites of two species of fish Acestrorhynchus lacustris and Steindachnerina insculpta. During the period January to November 2012, 40 specimens of Acestrorhynchus lacustris and 33 specimens of Steindachnerina insculpta were collected from the Peoxe’s river at four different points. The necropsies were performed and all organs were analyzed looking for myxosporean. Only the species Steindachnerina insculpta had their gills parasitized by two species of the genus Henneguya

Produção de hidrolisado enzimático de farinha de batata-doce para fermentação etanólica

Recently there is a great quest of producing alcohol from starchy resources, replacing the sugar cane. The most common starchy sources are cassava, maize and sweet potatoes and a lot of research are been realized with excellent results. In this work it was evaluated the influence of the concentration of dry matter on the enzymatic hydrolysis process of starch from sweet potato for ethanol production. Through the sweet potato was produced a flour using a low-cost method and easy operation equipments. The sweet potato flour was characterized physical and chemically and from these results was prepared the treatments for enzymatic hydrolysis. The experimental design considered as independent variable the dry matter concentration of the sweet potato flour in 3 levels; 10, 15 and 20% in the formulation of suspensions. The other variables were keeping constant being: temperature in the 1° hydrolysis step of 90°C and time of 2 hours; temperature in the 2° saccharification step of 60°C and time of 17 hours. The hydrolysates obtained at the three assays were transferred to six liter enlerynmeyer and inoculated with a biologic catalyst, Saccharomyces, dehydrated yeasts of Saccharomyces cerevisiae CAT 1, at a rate of 5% in weight. The flasks were placed in a shaker type orbital with controlled temperature of 30°C during a time of 15 hours. The initial reducer sugars concentration and respective ethanol concentrations in wine were: 11.2% glucose and 2.16% ethanol in the suspension with 10% of dry matter; 13.5% glucose and 4.39% ethanol with 15% and 17.5% glucose and 6.03% ethanol in suspension with 20% of dry matter. ix The results showed that the higher percentage of dry matter carried out to higher sugar yield in hydrolyzed. It was possible observed that products quality improved with a higher concentration of dry matter

Dinâmica hidrossedimentológica nos Rios Aguapeí e Peixe, Oeste Paulista

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

As vazões de outorga das bacias hidrográficas dos rios Aguapeí e Peixe

This work presents procedures for getting data to estimate grant flow by means of statistical and hydrological methods, acquired during the graduate course, of some streams in the watersheds of Aguapeí and Peixe rivers, in order to make available this data set to Sao Paulo State water and electrical energy department – DAEE and to the Committees of Aguapeí and Peixe watersheds. This study was performed using discharge data and the were a selection process to identify some faults in the historical series. Finally it was calculated the 7-day moving averages, Q7 and some characteristics discharges like Q90 and Q95. Taking into account the average discharge en seven days in a 10-year recurrence interval, it was estimated the grant flow of some streams. Data were generated for six posts inside the Aguapei and Peixe watersheds

Análises morfológicas dos mixozoários (MYXOZOA) parasitos presentes em tecido nervoso de peixes coletados no Rio do Peixe, médio Rio Tietê, SP, Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Atualizações sobre o uso de óleo de peixe no tratamento de cardiopatia canina

There are cardiopathies that acometem the dogs, being able this being congenital or acquired and lately have grown the number of cases due to the increase of the life expectancy of these animals becoming each time more necessary prevention methods. In recent years innumerable research is being carried through to understand the influence of the fish oil in the cardiopathies. The fish oil ingestion, Omega 3, has shown beneficial effect in the prevention of cardiovascular illnesses in such a way in the men as in the animals. Such effect this related to the presence of acid greasy polyunsaturateds n-3, mainly acid the eicosapentaenóico (EPA) and acid the docosahexaenóico (DHA). These substances can be found in foods as marine cold water fish (salmon, tuna, sardine and Trout), hemp seeds and soy. The present study, therefore, it has as objective to carry through an update on the use of the fish oil in the treatment of cardiopathies in dogs

Análise espaço-temporal do escoamento fluvial nas bacias hidrográficas dos rios Aguapeí e Peixe, Oeste Paulista, Brasil

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Formas, processos e evolução no padrão de canal meandrante em diferentes escalas geomorfológicas: o rio do Peixe, SP

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Análise da qualidade microbiológica do peixe (Eugerres brasilianus, Curvier 1830) e das águas do Estuário do Rio Itanhaém, SP, Brasil

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC

Evolução morfológica do Rio do Peixe: estudo de uma avulsão na planície aluvial, a partir de uma análise regional integrada - Oeste Paulista (SP)

Pós-graduação em Geografia - FCT

Evolução morfológica do Rio do Peixe: estudo de uma avulsão na planície aluvial, a partir de uma análise regional integrada - Oeste Paulista (SP)

Pós-graduação em Geografia - FCT

Experimento para quantificar a eficiência de aspersão de líquidos: aplicação em distribuidores espinha de peixe

This paper describes a device developed on the pilot scale and a simple approach to compare liquid distributor efficiencies. The technique consists basically of analyzing the mass of the liquid collected in 21 vertical pipes measuring 52 mm in internal diameter and 800 mm in length placed in a quadratic arrangement and positioned below the distributor A 50 mm thick acrylic blanket that does not disperse liquids was placed between the distributor and the pipe bank to avoid splashes. Assays were carried out with ladder-type distributors equipped with 4 parallel pipes each for a column measuring 400 nun in diameter as an example of the application. The number (n) of orifices (95, 127, and 159 orifices/m(2)), orifice diameter (d) (2, 3, and 4 mm) and the flowrate (q) (1.2; 1.4; and 1.6 m(3)/h) were varied. The best spread efficiency, which presented the lowest standard deviation, was achieved with 159 orifices, 2 mm and 1.4 m(3)/h. The pressure (p) at the distributor inlet for this condition was only 51000 Pa (0.51 kgf/cm(2)), while the average velocity (v) was 6.3 m/s in each orifice. These results show some limitations of the practical rules used in distributor designs.