Organochlorine insecticide (HCHs and p,p'-DDE) residues in fishes from Kanniyakumari (8°04'n, 77°36'E)

Abstract

182-183Eight species of fish comprising carnivorous, herbivorous and planktivorous forms were analysed for HCH isomers (alpha, beta and gamma) and p,p'-DDE residues in edible tissues. Total HCH concentration ranged between 4.2 ng.g-1 wet wt in Sardinella longiceps and 23.1 ng.g-1 in Scomberomorus guttatus. The lowest concentration of p,p'-DDE was recorded in Scomberomorus guttatus (0.11 ng.g-1) and the highest (2.2 ng.g-1) in Nemipterus japonicus. The residual concentrations in fishes were well below the tolerance levels prescribed