Impactos ecotoxicológicos do acidente com petróleo nas praias do estado de Pernambuco
Arquivos
Data
2022-02-07
Autores
Silva, João Pedro Carvalho Alves da 
Orientadores
Choueri, Rodrigo Brasil
Tipo
Trabalho de conclusão de curso
Título da Revista
ISSN da Revista
Título de Volume
Resumo
O petróleo é formado pela decomposição de materiais orgânicos. Esse recurso é essencial para os seres humanos por ser uma das mais importantes fontes de energia, mas pode trazer alguns prejuízos como consequência da sua exploração. O derramamento de óleo cru no meio aquático é um deles, causando diversas problemáticas para o meio ambiente e afetando direta e indiretamente os organismos marinhos, causando disfunções metabólicas e, consequentemente, afetando na sua reprodução e desenvolvimento. Em 2019, no Brasil, ocorreu o pior desastre já registrado no país, foram mais de 5000 toneladas de óleo cru que atingiram 11 estados e 130 municípios, e também áreas marinhas protegidas que possuem grande importância biológica. Era um óleo classificado como pesado e com alta viscosidade. Este estudo tem como objetivo avaliar a toxicidade das substâncias químicas do petróleo sobre copépodes do gênero Nitokra sp. em 7 diferentes praias afetadas pelas manchas de óleo. A análise dos testes de toxicidade de sedimento à fecundidade de Nitokra sp. foi feita baseando-se em métodos padronizados e disponíveis na literatura. Os dados obtidos foram testados quanto à sua normalidade e homocedasticidade. Através do teste de PERMANOVA, onde pares de áreas foram comparados com o intuito de analisar a diferença de taxa de fecundidade de cada área, Dentre as áreas analisadas apresentaram, apenas algumas apresentarem significância quanto ao nível de produção de prole. Entretanto, o petróleo não era o único poluente, as regiões estudadas também apresentavam outras fontes de contaminação, sendo assim necessário mais estudos referentes a população dessas regiões.
Petroleum is formed by the decomposition of organic materials. This resource is essential for human beings as it is one of the most important sources of energy, but it can bring some essential resources as a consequence of it. The environment operated by means of them, and the breeding environment, designated by means diverse function for a marine environment and, consequently, designated for direct distribution and diversification for their marine animals and, consequently, designated for direct distribution and diversions for their reproduction and development. In 20 crude countries19, in Brazil, the worst ever recorded occurred in the crude country19, there were more than 5000 tons of disaster that affected 1 states and 130 municipalities, and also protected marine areas that have great biological importance. It was an oil packed as heavy and high. This study aims to evaluate the toxicity of petroleum tests on copepods of the genus Nitokra sp. in 7 different oil stains. An analysis of sediment toxicity tests on fecundity of Nitokra sp. was made based on methods available in the literature. The data obtained were tested for normality and homoscedasticity. Through the PERMANOVA test, where pairs of areas were compared in order to analyze the difference in fecundity rate of each area, among the areas that differ, only some have significance regarding the level of offspring production. In addition, sources of oil were not as necessary as regions of polluting origin.
Petroleum is formed by the decomposition of organic materials. This resource is essential for human beings as it is one of the most important sources of energy, but it can bring some essential resources as a consequence of it. The environment operated by means of them, and the breeding environment, designated by means diverse function for a marine environment and, consequently, designated for direct distribution and diversification for their marine animals and, consequently, designated for direct distribution and diversions for their reproduction and development. In 20 crude countries19, in Brazil, the worst ever recorded occurred in the crude country19, there were more than 5000 tons of disaster that affected 1 states and 130 municipalities, and also protected marine areas that have great biological importance. It was an oil packed as heavy and high. This study aims to evaluate the toxicity of petroleum tests on copepods of the genus Nitokra sp. in 7 different oil stains. An analysis of sediment toxicity tests on fecundity of Nitokra sp. was made based on methods available in the literature. The data obtained were tested for normality and homoscedasticity. Through the PERMANOVA test, where pairs of areas were compared in order to analyze the difference in fecundity rate of each area, among the areas that differ, only some have significance regarding the level of offspring production. In addition, sources of oil were not as necessary as regions of polluting origin.
Descrição
Citação
SILVA, João Pedro Carvalho Alves da. Impactos ecotoxicológicos do acidente com petróleo nas praias do estado de Pernambuco. 2022. 33 f. Trabalho de conclusão de curso (Graduação em Bacharelado Interdisciplinar em Ciência e Tecnologia do Mar) - Instituto do Mar, Universidade Federal de São Paulo, Santos, 2022.