Negative Effect of Lambda-cyhalothrin (Insecticide) on Alazani River Fish, Luciobarbus Mursa

Abstract

Pesticides are complex organic substances that are an important source of water pollution. Using pesticides is one of the important actions for harvest protection. This, however, does not negate the fact that its usage can result to negative consequences as well. The study of toxic action of lambda-cigalotrin (the piretroid of the insecticides which is included in icons, karate, commodore, samurai) on quantitative contents of fatty acids and structural lipids in muscle, gills, liver, and in the brain of fishes in river Alazani was carried out. Based on the actual material, one can conclude that intoxication of the fish tissues with lambda-cyhalotrin processes appear, which stimulates oxidation of free radicals of structural lipids. The peroxides of the initiators of free radicals are formed, which stimulate lipid per oxidation. Exposure to insecticides caused an induction of antioxidant enzyme activities indicating the activation of the insecticides detoxification pathways and the antioxidant defenses. The non-protein sulfhydryl groups increased to 1,75  0,109 compared to the control (1,04  0,123), while the total sulfhydryl groups statistically increased to 39,16  1,44 compared to the control (34,00  1,22 ).This indicates an increase in the concentration of protein and total sulfhydryl groups compared to controls. The study also identified that excess amounts of insecticides in the tissues disrupts the biochemical parameters. These changes may be potentially disruptive for the survivability of fish in natural resources. This fact should thus be taken into consideration when this insecticide is used for pest control in agriculture fields surrounding surface water and ground water resources.