Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-07-03T13:47:46Z No. of bitstreams: 1 JessicaMitizyDeOliveiraSilverio_DISSERT.pdf: 4111576 bytes, checksum: 65635da2847b2131a73ea2226df25e1e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-07-07T13:47:25Z (GMT) No. of bitstreams: 1 JessicaMitizyDeOliveiraSilverio_DISSERT.pdf: 4111576 bytes, checksum: 65635da2847b2131a73ea2226df25e1e (MD5) / Made available in DSpace on 2017-07-07T13:47:25Z (GMT). No. of bitstreams: 1 JessicaMitizyDeOliveiraSilverio_DISSERT.pdf: 4111576 bytes, checksum: 65635da2847b2131a73ea2226df25e1e (MD5) Previous issue date: 2017-05-08 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A urbaniza??o normalmente est? associada a polui??o dos corpos h?dricos por nutrientes e metais pesados. Na busca por t?cnica de biomonitoramento e m?todos de tratamento da polui??o ambiental, o uso de macr?fitas aqu?ticas emergentes tem apresentado bons resultados como bioindicadoras ecol?gicas, al?m de fitodepuradoras e fitorremediadoras em sistemas fluviais, devido ? sua efici?ncia, praticidade, alta sensibilidade e baixo custo para remo??o destes contaminantes . As plantas macr?fitas aqu?ticas normalmente ocorrem nas zonas de transi??o solo-?gua, onde poluentes dissolvidos na ?gua e no sedimento s?o submetidos ? a??o depuradora dessas plantas, dando origem a rea??es bioqu?micas e f?sicas que modificam a qualidade do sistema aqu?tico. Este trabalho teve como objetivo principal avaliar a interfer?ncia da macr?fita aqu?tica emersa Aninga (Montrichardia linifera, Araceae) visando o conhecimento da capacidade de resposta de forma mensur?vel desta esp?cie ? perturba??o ambiental por contamina??o de elementos-tra?os e nutrientes em um sistema natural l?tico eutrofizado de clima tropical. A partir dos resultados obtidos neste estudo atrav?s de monitoramento vari?veis f?sico-qu?micas limnol?gicas e an?lises de mecanismos de bioacumula??o e transloca??o na planta, constatou-se que se trata de uma esp?cie bioindicadora para elementostra?os e que possui potencial de fitorremedia??o para o nutriente f?sforo e metais Alum?nio, Chumbo, Ferro . Tamb?m evidenciou que as comunidades de Aningais inferem de forma positiva na fun??o ecol?gica da din?mica as fra??es do nutriente f?sforo no sedimento e atua como biofiltradora na coluna d??gua no trecho estudado. / Urbanization is usually associated with pollution of water bodies by nutrients and heavy metals. In the search for biomonitoring techniques and environmental pollution treatment methods, the use of emergent aquatic macrophytes has shown good results as ecological bioindicators, as well as phytodeurants and phytoremediation in river systems, due to their efficiency, practicality, high sensitivity and low cost. Removal of these contaminants. Aquatic macrophyte plants usually occur in soil-water transition zones, where pollutants dissolved in water and sediment are subjected to the purifying action of these plants, giving rise to biochemical and physical reactions that modify the quality of the aquatic system. The objective of this work was to evaluate the interference of the emergent aquatic macrophyte Aninga (Montrichardia linifera, Araceae) aiming the knowledge of the measurable response capacity of this species to the environmental disturbance due to contamination of trace elements and nutrients in a natural eutrophic lotic system tropical weather. From the results obtained by monitoring limnological physico-chemical variables and analysis of mechanisms of bioaccumulation and translocation in the plant, it was verified that it is a bioindicator species for trace elements and that it has phytoremediation potential for the nutrient phosphorus and metals Aluminum, Lead, Iron. It also showed that the communities of Aningais positively infer in the ecological function of the dynamics the fractions of the nutrient phosphorus in the sediment and acts as a biofilter in the water column in the studied section.