Micronuclei monitoring of fishes from Lake Paranoá, under influence of sewage treatment plant discharges.
Fish micronuclei tests (MN) were used to evaluate the ability of wastewater from two municipal sewage treatment plants that empty into Lake Paranoá to cause genetic damage. There were no significant differences in the frequencies of micronuclei between the control and hypertrophic areas. In contrast, cyclophosphamide and mitomycin C, used to test the sensitivity of the biological assay, significantly increased the micronuclei counts in Tilapia rendalli, Oreochromis niloticus and Cyprinus carpio, T. rendalli was the most sensitive specie to both clastogens and C. carpio, the most resistant.
Grisolia
C K
CK
Departamento de Genética e Morfologia, Instituto de Ciências Biológicas, Universidade de Brasília, 70.910-900, DF, Brasília, Brazil. grisolia@unb.br
Starling
F L
FL
D000818:Animals; D005399:Fishes; D007220:Industrial Waste; D048629:Micronuclei, Chromosome-Defective; D015162:Micronucleus Tests; D012722:Sewage; D013045:Species Specificity
D007220:Industrial Waste; D012722:Sewage