António Carvalho
Laura Guimarães, Luís Oliva Teles, Maria Teresa Oliva Teles, Cristina Delerue-Matos
Automated video image analysis of an aquatic snail (Lymnaea stagnalis) locomotor behavior as an early warning system of pollution in the Aveiro Lagoon (Ria de Aveiro)
Because of the increasing pressure from human activities on the environment, it is imperative to develop tools to assess their effects quickly and easily, preferably in early stages of contamination. Animal behavior has gained increasing importance as a tool for ecotoxicology, since behavioral changes can occur at exposure concentrations well below those required to cause evident adverse physiological effects. As such, the use of animal behavior as an environmental quality indicator can become a powerful tool in the fight against pollution.

This work aims to develop a video tracking system able to detect changes in the locomotor behavior caused by exposure to contaminants in a ubiquitous aquatic snail (Lymnaea stagnalis), testing this system along a longitudinal gradient of aquatic pollution in the Aveiro Lagoon (Ria de Aveiro), with special emphasis on organic contaminants and metals.
Projet OHMs
OHM(s) concerné(s)
  • Estarreja
Écologie, Écophysiologie, Santé publique


António Paulo Carvalho has a PhD in Biology (University of Porto, 2001). He is Assistant Professor at the Dept of Biology (Faculty of Sciences, University of Porto) and Researcher at CIIMAR (Interdisciplinary Centre of Marine and Environmental Research). He has expertise on ecotoxicology and biology of aquatic species.


PhD Laura Guimarães (female) is a researcher in Environmental Toxicology. She is a biologist and PhD in Biomedical Sciences (University of Porto, 2002), with work developed in CNRS (UPR 2216, France). Her expertise is in 1) biomonitoring and integrated chemical and biological effects monitoring of aquatic systems; 2) physiology and toxicological evaluation of priority (e.g., heavy metals, PAH, organophosphates) and emerging contaminants of concern, for hazard assessment in ecological risk assessment, investigation of their mode of action and relation to temperature and salinity as natural stressors; and 3) use and development of early-warning biomarkers of exposure/effect to diagnose the health status of wild vertebrate and invertebrate populations. She is member of COST Action NEREUS and participated in 16
national (1 as coordinator) and international research projects. International projects were funded by the FP6 ERA-NET AMPERA (RAMOCS) and three bilateral cooperation protocols: ICCTI/CAPES, Brazil;
French Embassy / ICCTI, France; FCT and The British Council, UK (Petgenes). She supervised or cosupervised over 25 students, technicians and young researchers, including 4 post-doctoral fellows (1 on course), 2 PhDs (1 ending), 5 MSc students (1 on course), and internships of 7 international students. She is member of the Editorial Board of Marine Pollution (specialty section of Frontiers in Marine Science and Frontiers in Environmental Science), review editor. She has over 60 international publications (over 60% of which in SCI index journals ranked within the 1st quartile (Q1) of their areas), and over 80 communications in international and national scientific meetings.
Oliva Teles
Luís Oliva Teles has a PhD in Biology (University of Porto, 1999). He is Assistant Professor, at the Dept
of Biology, Faculty of Sciences, University of Porto and Researcher at CIIMAR (Interdisciplinary Centre of Marine and Environmental Research). He has expertise on ecotoxicology of aquatic species.
Oliva Teles
Maria Teresa Pereira de Oliva Teles Moreira has a Ph.D in Chemical Engineering. She is a professor at
the Instituto Superior de Engenharia / Instituto Politécnico do Porto (ISEP/IPP) and a research member of REQUIMTE-LAQV, Grupo de Reação e Análises Químicas (www.isep.ipp.pt/graq) in the area of
analytical chemistry focusing food safety and environment.
Cristina Maria Fernandes Delerue Alvim de Matos has a Ph.D. in Chemical Physics and is a Full Professor. She is the Coordinator REQUIMTE-LAQV, Grupo de Reação e Análises Químicas (www.isep.ipp.pt/graq) (2001-). Her focus area is analytical and sustainable chemistry, including the production of novel compounds, nanotechnology and biosensors, food safety, public health and environment, and soil and groundwater remediation and sustainable resource- and waste management.