14/09 – SEMINÁRIO DE QUALIFICAÇÃO (Doutorado) – ROBERTA SANTOS DA SILVA COUSSIRAT

SEMINÁRIO DE QUALIFICAÇÃO (Doutorado)

ROBERTA SANTOS DA SILVA COUSSIRAT

Integrated Assessment of Lake Guaíba Water Quality Following the 2024 Floods: Ecotoxicological and Genotoxic Approaches

Orientadora: Dra. Juliana da Silva

Coorientadora: Dra. Lavínia Schüler Faccini

Banca Examinadora: Dra. Fernanda Rabaioli da Silva (Laboratório de Genética Toxicológica, Universidade La Salle) e Dr. Thales Renato Ochotorena de Freitas (PPGBM-UFRGS)

14 de setembro de 2026 (segunda-feira)

10h30min

Presencial: Anfiteatro do Departamento de Genética da UFRGS (Campus do Vale, prédio 43312)

Abstract:

The doctoral research of Roberta Santos da Silva Coussirat—supervised by Prof. Dr. Juliana da Silva and co-supervised by Prof. Dr. Lavínia Schüler Faccini—evaluates the impacts of the 2024 floods on the water quality of Lake Guaíba. The study employs an integrated approach combining physicochemical water analysis; the identification of emerging pollutants, metals, and microplastics; and ecotoxicological and genotoxic assessments using model organisms (Caenorhabditis elegans and Daphnia magna) and human HepG2 cells, alongside systems biology analyses to investigate the molecular mechanisms underlying the observed effects. The research aims to understand the impacts of these contaminants on aquatic ecosystems and human health, contributing to the development of environmental monitoring and water quality management strategies in the face of challenges posed by climate change.