Bioaccumulation of Commercial Grade Thiodicarb 75% WP Pesticide in Different organs of the Freshwater Major Carp, Labeo rohita (Hamilton)

Mariya Dasu P; Tata Rao S; Vivek Ch; Venkata Rathnamma V; K Veeraiah

Volume : IV, Issue : XII, December - 2014

Bioaccumulation of Commercial Grade Thiodicarb 75% WP Pesticide in Different organs of the Freshwater Major Carp, Labeo rohita (Hamilton)

Mariya Dasu P, Tata Rao S, Vivek Ch, Venkata Rathnamma V, K Veeraiah

Abstract :

<p>Bioaccumulation studies of thiodicarb 75% WP were conducted on Indian major carp fish, Labeo rohita< /> (Hamilton). The LC50 values were calculated for thiodicarb for 24, 48, 72 and 96 h, in static system 14.2,< /> 13.0, 12.0 and 7.0 ppm respectively. The fish were exposed to Sub&ndash;lethal (Static 1/10th of 96h) and lethal concentrations of commercial grade at 96 hours. The vital tissues viz., gill, muscle, ain, liver and kidney were analyzed for residue estimations. In all the tissues, analyzed maximum residue was recovered in the time period 96h. After exposed to< /> sub&ndash;lethal and lethal concentrations the highest residue concentration of thiodicarb were observed in kidney (0.082&micro;g< /> and 0.246&micro;g) followed by, muscle (0.064&micro;g and 0.192&micro;g), Liver (0.057&micro;g and 0.171&micro;g), ain (0.046&micro;g and 0.138&micro;g)< /> and Gill (0.031&micro;g and 0.093&micro;g). For the calculation of thiodicarb concentration in different organs, peak heights were< /> taken. The LOD and LOQ for thiodicarb were 0.04 (&micro;g/g) and 0.05 (&micro;g/g) respectively. The decline in residue levels< /> along with the period of exposure indicates the fast acting nature of thiodicarb and metabolites.</p>