TY - JOUR
T1 - Oxidative stress induced on cyprinus carpio by contaminants present in the water and sediment of madín reservoir
AU - Galar-Martínez, Marcela
AU - Gómez-Oliván, Leobardo Manuel
AU - Amaya-Chávez, Araceli
AU - Razo-Estrada, Celene
AU - García-Medina, Sandra
N1 - Funding Information:
This study was made possible through support from the National Science and Technology Council (CONACYT, project 57321) as well as the Research and Postgraduate Secretariat of the National Polytechnic Institute (SIP-IPN, projects 20060186 and 200704594).
PY - 2010/1
Y1 - 2010/1
N2 - Madín Reservoir (MR), located in the State of Mexico, is fed mainly by the Río Tlalnepantla. MR supplies potable water to the municipalities of Naucalpan and Atizapán, and various recreational activities take place in its vicinity, such as sailing and the fishing of diverse species including the common carp Cyprinus carpio. The purpose of this study was to determine the toxic effects of contaminants present in MR water and sediment on C. carpio. Five sampling stations were selected (those considered to have the most problems due to discharges). Water and sediment samples were taken and toxicity studies were performed, including acute toxicity (lethality) and subacute toxicity assays. The biomarkers used in the subacute assays were lipid peroxidation (LPX) and activity of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) in the liver and brain of test organisms. These biomarkers were also evaluated in local carp, i.e. carp with chronic exposure in situ to reservoir contaminants. Results show that contaminants in the water and sediment of the different sampling stations induce oxidative stress, this toxicity being more evident in samples from stations near the entry point of the Río Tlalnepantla tributary and in local carp. This may be due to high contaminant levels as well as the fact that the physicochemical characteristics of the matrices might favor their bioavailability. Thus, both the water and sediment of this reservoir are contaminated with xenobiotics hazardous to C. carpio, a species consumed by the local human population.
AB - Madín Reservoir (MR), located in the State of Mexico, is fed mainly by the Río Tlalnepantla. MR supplies potable water to the municipalities of Naucalpan and Atizapán, and various recreational activities take place in its vicinity, such as sailing and the fishing of diverse species including the common carp Cyprinus carpio. The purpose of this study was to determine the toxic effects of contaminants present in MR water and sediment on C. carpio. Five sampling stations were selected (those considered to have the most problems due to discharges). Water and sediment samples were taken and toxicity studies were performed, including acute toxicity (lethality) and subacute toxicity assays. The biomarkers used in the subacute assays were lipid peroxidation (LPX) and activity of the antioxidant enzymes superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX) in the liver and brain of test organisms. These biomarkers were also evaluated in local carp, i.e. carp with chronic exposure in situ to reservoir contaminants. Results show that contaminants in the water and sediment of the different sampling stations induce oxidative stress, this toxicity being more evident in samples from stations near the entry point of the Río Tlalnepantla tributary and in local carp. This may be due to high contaminant levels as well as the fact that the physicochemical characteristics of the matrices might favor their bioavailability. Thus, both the water and sediment of this reservoir are contaminated with xenobiotics hazardous to C. carpio, a species consumed by the local human population.
KW - Cyprinus carpio
KW - Madín Reservoir
KW - Oxidative stress
KW - Sediment
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=77649279498&partnerID=8YFLogxK
U2 - 10.1080/10934520903425780
DO - 10.1080/10934520903425780
M3 - Artículo
SN - 1093-4529
VL - 45
SP - 155
EP - 160
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 2
ER -