Study the effect of bio�concentration factor of malathion and Dichlorvos pesticides on the ovaries of common carp (Cyprinus carpio) L. and gold fish (Carassius   auratus ) L.

Saphia  Ali Aitte

Volume : VI, Issue : IX, September - 2016

Study the effect of bio�concentration factor of malathion and Dichlorvos pesticides on the ovaries of common carp (Cyprinus carpio) L. and gold fish (Carassius auratus ) L.

Saphia Ali Aitte

Abstract :

The aim of the current study to measure the vital concentration factor BCF in the tissues of the ovaries of two types of freshwater fish carp common carp golden fish under the effect of different concentrations of Exterminators malathion and Dichlorvos were (0.24,0.27. 0.29) ppm for a period of exposure 10 days and concentrations under lethal (0.04, 0.06, 0.08) ppm for a period of exposure amounted to 15 days has this study depended on the effect of pesticides on tissue ovaries of these two fish due to their high lipid content possible to focus these pesticides with ease from the aqueous medium has the current study, the highest recorded value of the coefficient of effect BCF where the recorded values of coefficient focus higher value through the accumulation of the pesticide malathion in the tissues of the ovaries carps usual amounted to(% 18.5) with (0.87) correlation during the period of 10 days of exposure and the lowest rate of accumulation of pesticide Dichlorvos in the tissues of the ovaries of golden fish was %12.25 correlation factor of (0.60), as bio–concentration factor showed a rise during the period 15 days exposure to both insecticides where malathion record value of (%178.75) and the correlation coefficient (0.95) in the accumulation of tissue fish common carp ovaries in what was the amount of bio–accumulation of Dichlorvos pesticide (%76.5) in the tissues of the ovaries of gold fish when correlation coefficient (0.84)