BIOCONCENTRATION OF FENVALERATE INSECTICIDE IN FRESH WATER FISH Channa striatus

Modern agriculture heavily relies on chemicals such as different types of fertilizers, herbicides, fungicides and insecticides. These chemicals have an impact on aquatic organisms Fenvalerate was selected for the study. Channa striatus was selected as a model fish to test the bioconcentration in different organs. C. striatus was collected from a pond far from Kuttanad and transferred to laboratory. 20 healthy fishes were selected for experimental tanks. The fishes were fed with fish meal and rice flour in 1:1 ratio for once every two days. 25% of water were withdrawn from each tank and the pesticide content in the experiment tank was maintained at the same level. Based on the AOAC 2012 standard procedures, the analysis was carried out using a Perkin-model 5890 Gas Chromatography connected with a Ni 63 electron capture detector. The present investigation concludes that the bioconcentration of fenvalerate insecticide affect the gills, liver and muscles of the C. striatus. Insecticide fenvalerate shows a greater sublethal concentration in C. striatus is 0.188906 ppm/1. Fenvalerate is concentrated in the liver, gills and muscle tissues.