Banca de DEFESA: JÉSSICA MITIZY DE OLIVEIRA SILVÉRIO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JÉSSICA MITIZY DE OLIVEIRA SILVÉRIO
DATA : 08/05/2017
HORA: 10:00
LOCAL: Sala de Reuniões do CCEA - CTEC/UFRN
TÍTULO:

THE ROLE OF THE EMERGED AQUATIC MACROPHYTE Montrichardia Linifera (Araceae) IN PHOSPHORUS CYCLING AND HEAVY METALS BIOACCUMULATION IN THE WATERSHED UNDER URBANIZATION EFFECTS

PALAVRAS-CHAVES:

Emergent Macrophytes. Aninga. Phosphorus cycling. Heavy Metals. Phyto-prepuration. Bioaccumulation.

PÁGINAS: 108
GRANDE ÁREA: Engenharias
ÁREA: Engenharia Sanitária
RESUMO:

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.

MEMBROS DA BANCA:
Interno - 052.716.174-83 - FABIANA OLIVEIRA DE ARAUJO SILVA - UFRN
Presidente - 1242829 - LUCIO FLAVIO FERREIRA MOREIRA
Externo à Instituição - MARCELO LUIZ MARTINS POMPEO - USP
Interno - 1764855 - VANESSA BECKER