63 resultados para Moluscos bivalves


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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Pós-graduação em Geologia Regional - IGCE

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Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

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Pós-graduação em Ciências Biológicas (Zoologia) - IBRC

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

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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

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whole world. The world production of fish is around 100 million tons/year and 70% of them is destined exclusively to the human feeding. The fish and derived have a great importance in the human diet, contributing with ¼ of offer of protein of animal origin. Sseafood and fish are health, because they are rich in proteins, vitamins, micronutrients and insatured fats. However, one of the most important themes, in public health, refers to the safe food. Only in the USA, 76 million case of foodborne diseases occurs every year, with 325 thousand hospitalized and 5 thousand deaths. According to the microbiological parameters, the Brazilian Food Sanitation Standard (Decree No. 12, 2001) defined that fish, roes of fish, crustaceans and mollusks in natura cooled or frozen, no consumed raw should present up to 103 MPN of coagulase positive Staphylococcus in the absence of Salmonella in 25g. Based on this, this work verified the microbiological quality of fish and seafood retailed in supermarkets and fish store in Botucatu city. A hundred samples were analyzed, being 65 frozen (65%) and 35 cooled (35%). The samples included various kinds of fish and seafood. Among the frozen samples, 31 were fish and 34 seafood. About the cooled ones, 28 were fish and 7 seafood. The methods used for analysis are in agreement with APHA (2001). The samples were acquired in 4 establishments (3 supermarkets and a fish store). Ina total of 100 samples, all were negative to coagulase positive Staphylococcus and 2 were positive for Salmonella (2%). According to the results, we conclude that the presence of Salmonella is a risk factor for the consumers' health and these foods should not be consumed raw. In spite of the freezing to be a good conservation way, this process doesn't totally eliminate the pathogens of the food

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The Pampo oil field is located in the southwest of the trend Badejo-Linguado-Pampo in an accumulation of single - mixed trap: structural-stratigraphic-diagenetic. Its main reservoir is a coquina shell of bivalves (the lowest) in the Lagoa Feia Group. During the rift phase, the Badejo-Linguado-Pampo trend´s accumulations evolve according to three tectono-stratigraphic cycles. The first two cycles are formed by siliciclastic rocks with fining up sequences and carbonates coquinas bivalves. The youngest cycle related to Alagoas age is a transgressive event represented by the presence of an evaporitic layer in the top (anhydrite). This study aims to characterize the reservoir Coqueiros Formation based on the analysis of 2D and 3D seismic data and well data-correlation profiles. The structural map of the top of coquinas reservoir indicates a curvilinear contour of Pampo Fault as described on the literature. This fault was interpreted on seismic data as a basement´s high, and it doesn´t show influence on the horizons above the top of Lagoa Feia Group. The Pampo fault is responsible for the division of the field into two blocks: the hanginwall in the West and the footwall to the East. This division is well marked on the reservoir´s isopach map where a greater thickness of reservoir is observed on the lower block. In the Southeast extreme of Badejo-Linguado-Pampo trend, on Pampo Field, the thick siliciclastic´s interval ends laterally to the basement, and its lower´s cycle forms a wedge, as consequence the carbonate-coquina overlaps directly the basement. Another implication of the higher and distal position of Pampo field is that the third cycle is absent, truncated by the unconformity pre-Macaé Group (Albian)

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The Lagoa Feia Group (Early Cretaceous) is widely distributed around the Campos Basin, forming deep prospects in the basin. It has two large coquinas platforms shellfish, and the lower deck constituent important reservoir in the southwestern of this basin, a producer of oil in the trend-Badejo-Linguado-Pampo. Due to the rising national energy demand is necessary to see the incorporation of technical knowledge and training of human resources in the knowledge of petroleum reservoirs. In this sense, the Pampo Field, as well as other fields of the trend, fall as interesting target area for study. Accumulations of hydrocarbons are partitioning structural - stratigraphic only for the three fields. They are mixed origin of traps, with influence of structural, stratigraphic and diagenetic. With the development of catchment areas of the latter condition has manifested itself in such a way to verify parts with nonproducing wells, which are observed in the intervals coquinas are closed, with reduced thickness and / or low quality porous. The understanding of these accumulations, by testing structural, stratigraphic and reservoir and the use of geological and geophysical techniques, will bring a better understanding of the portions relating to economic accumulation or subeconomic development of hydrocarbons in this region, contributing to the scientific knowledge of the Pampo Field.

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

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

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

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)