OBJECTIVES: Among the most relevant issues in community ecology is the influence of different ways of addressing the pattern of diversity and distribution of species, and based on this, the present study sought to evaluate the influence of landscape and local characteristics on the richness and composition of fish assemblages in the Ivinhema River basin. METHOD: In the present study, we used data of distribution of fish species in 25 stretches of streams of the Ivinhema River basin, Upper Paraná River, aiming to know the role of local characteristics and land use on fish assemblages. RESULTS: We identified 113 fish species, and those sampled in a greater number of sites were: Astyanax altiparanae and Serrapinnus notomelas. The richness varied between 4 and 65 species. The regression tree allowed explaining 89.3% of richness variation, and permitted to identify that altitude is the main predictor of richness. According to the canonical correspondence analysis, variables that most influenced the species distribution were: altitude, depth, width, velocity, conductivity and percentage of built-up areas. CONCLUSIONS: Our results suggested that factors that most influenced fish assemblages in the Ivinhema River basin were physiographic and limnological characteristics, followed by land use.
The present study aims to relate the micronucleus frequency in Tradescantia pallida to environmental factors and cardiorespiratory diseases to infer the effect of air pollution. The number of hospitalizations, diseases cases, frequency of micronuclei in plants, environmental variables, altitude, and vehicle traffic in cities of Mato Grosso do Sul were evaluated due to the high flow that surrounds agribusiness. The frequency of micronuclei decreased with the increase in relative humidity, while the altitude did not influence the mutagenicity or genotoxicity of the evaluated plants. The municipalities with micronucleus frequencies above 200 had the highest number of vehicle and cardiorespiratory diseases. Biomonitoring data obtained in cities throughout the year indicate that the number of cardiorespiratory diseases was probably due to vehicular pollution, which is evidenced by the increased frequency of micronuclei in T. pallida.
Resumo: Este texto descreve e analisa o processo organizativo e a dinâmica participativa dos diferentes segmentos que integraram as Conferências Municipais de Saúde, realizadas nos anos de 2003 e 2007 em nove municípios de Santa Catarina. Para a pesquisa de campo, trabalhou-se com materiais próprios da organização das plenárias, Relatórios Finais das Conferências e a realização de entrevistas gravadas. Considerou-se como processo organizativo a iniciativa de convocar a Conferência, todo o processo de divulgação, a organização da realização da plenária, a elaboração do Relatório Final e a sua divulgação. A dinâmica participativa entre os segmentos foi explorada, sobretudo, a partir das entrevistas, que destacaram a pouca participação dos usuários ou uma participação que revela desconhecimento da política e as interfaces burocráticas.Palavras-chave: Conferência de saúde. Participação. Política de saúde.
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