| the piscine micronucleus test to assess the impact of pollution on the japaratuba river in brazil. | in situ investigations of the effects of mutagenic pollutants (environmental monitoring) have increasingly used bioindicators, and fish often have been used in these studies as sentinel organisms. in the present study, we have used the piscine micronucleus test (mnt) as an in situ biological indicator of chemical contamination in two fresh water fish species (astyanax bimaculatus and hoplias malabaricus). the fish were collected from two sites (sites 1 and 2) in the japaratuba river (sergipe, br ... | 2006 | 16388529 |