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Abstract
Alteration in behavioral patterns and histopathology of liver were studied in Channa
gachua, after exposure to Ekalux (25 % EC). The 96 hour LC50 of Ekalux was determined to be
1.473 ppm. The exposed fish exhibitedirregular, erratic and darting swimming and became
lethargic due to inhibition of AchE activity.The liver showed rupture of sinusoids, loosening of
hepatic tissue,vacuolation between hepatocytes, degeneration and vacuole formation in islets
ofLangerhans, shrinkage of central vein and necrosis in hepatocytes. The result of the present
study revealed that Ekalux toxicity affects the liver.