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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.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/23553 |
| Date | 08 May 2017 |
| Creators | Silv?rio, J?ssica Mitizy de Oliveira |
| Contributors | 37994476449, http://lattes.cnpq.br/4599100661657180, Silva, Fabiana Oliveira de Ara?jo, 05271617483, http://lattes.cnpq.br/4092497452096511, Pompeo, Marcelo Luiz Martins, 02055662864, http://lattes.cnpq.br/6924369085424761, Becker, Vanessa, Moreira, L?cio Fl?vio Ferreira |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM ENGENHARIA SANIT?RIA, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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