Abstract
Changes in the Sodium (Na + ), Potassium (K + ) and Calcium (Ca + ) ions of the fish, Clarias gariepinus, (Burchell; 1822) subjected to sub lethal concentrations (0.01 and 0.02 ml) of Kartodim 315 EC (Dimethoate and Lambda- Cyhalothrin), a pesticide, over a period of 96 hours were studied in a semi- static (renewal) system. The result indicated that the Na + , K + and Ca 2+ in the liver exhibited a sight fluctuation in their values, with Na + and K + increasing while Ca 2+ decreased (P>0.05) with increased concentrations of Kartodim 315 EC. For the kidney electrolytes, their was a significant (P 0.05). The overall pictures of changes in the composition of ion concentration does not exclude the possibility of kidney damage in the experimental fish. The ions (electrolytes) provide some information on the osmotic pressure and osmoregulatory changes in the fish. The kidney and Liver electrolytes are all involved in general ion regulation and in cell membrane processes. Keywords: Dimethoate and Lambda- cyhalothrin, Clarias gariepinus, Electrolytes, Kidney, Liver.
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