INVESTIGADORES
CAZENAVE Jimena
congresos y reuniones científicas
Título:
BIOMARKER RESPONSES IN CAGED SÁBALO (Prochilodus lineatus) EXPOSED TO UNTREATED SEWAGE EFFLUENT
Autor/es:
PÉREZ M.R, BACCHETTA C., ROSSI A., CAZENAVE J.
Lugar:
Chascomús
Reunión:
Jornada; XVI Jornadas de la Sociedad Argentina de Biología; 2014
Institución organizadora:
SAB
Resumen:
Wastewater effluents are an important source of water
pollution and fishes result vulnerable to them given that they are exposed
throughout their lives. Oxidative stress-related parameters and putative
biomarkers of brain damage were evaluated in caged juveniles P. lineatus exposed
for 15 days in the Colastiné River, where untreated domestic wastewater from
Santa Fe city is discharged. Fish were caged in different sites: upstream,
immediately and downstream of effluent discharge. After 15 days, brain of caged
fish exposed to the effluent showed a decrease in catalase and
acetylcholinesterase activities, relative to up and downstream sites. Also,
increased levels of caspase-3 activity were detected in the brain of fish caged
at the effluent, which could indicate an induction of apoptosis due to effluent
exposition. TBARS levels did not show a significant difference between caged
fish at any of the sites, although high levels were detected in the liver of
caged fish exposed immediately of effluent discharge point. Results suggest
that exposition to sewage effluents could be potentially harmful to the fish
brain.