The objectives of the present investigation are to monitor the organochlorines (OCs), organophosphates (OPs), carbamates and synthetic pyrethroid insecticides (SPI) in the polluted river Sai and their bioaccumulation in some food fishes. The OCs, OPs and SPI have been measured by gas liquid chromatography (GLC) and carbamates by high performance liquid chromatography (HPLC). Results indicated that OCs, OPs and carbamates are bioaccumulated very high in brain, liver and ovary in the catfishes captured from polluted river Sai and are recorded beyond permissible limits. Ovaries have indicated disruption of follicular wall, cytotoxic damage, a large number of follicular atresia, inclusion bodies and immature oocytes in both the fishes affecting reproductive physiology. The analysis of river water has also shown the presence of above toxicants. In conclusion, fishes from polluted river should not be taken as food and also water is not suitable for drinking purpose. These pesticides presumably cause the decrease in growth of the edible fishes of this river.
Insecticides, Bioaccumulation, Fishes, Breeding phase, River Pollution
