Author(s): George ADI and Uedeme-Naa B

Abstract: On exposure of sodium ion (Na⁺), potassium ion (K⁺), calcium ion (Ca²⁺), chloride ion(Cl^-), hydrogen carbonate ion (HCO₃^-) in the muscle, blood plasma and liver of juvenile and adult freshwater catfish, Clarias gariepinus to 10.00, 20.00, 30.00, 40.00 and 50.00mg/l of detergent for 30 days, it was observed that sodium ion respectively dropped below control at 10.00, 20.00 and 50.00mg/l by 8.17, 11.20 and 11.29% and was higher than control at 30.00 and 40.00mg/l by 37.37 and 14.79% in the muscles of juvenile fish while in adult fish, it was noted that LAS, caused a significant increase (P<0.05) of sodium ion in the muscles of specimen (C. gariepinus) by 17.08% at 10.00mg/l, 38.07% at 20.00mg/l, 54.06% at 30.00mg/l, 55.27% at 40.00mg/l and 64.04% at 50.00mg/l with increase in concentration. Potassium ion significantly decreased in both life stages with increase in concentration except at 50.00mg/l in juvenile fish where it was raised above control by 21.41% (62.37±10.25). Potassium ion peaked at 30.00mg/l with 40.40% in adult fish and that of adult peaked at 50.00mg/l with 40.24% below control. Linear alkyl benzene sulfonate significantly raised calcium ion in juvenile fish by 32.60% at 10.00mg/l, 90.43% at 20.00mg/l, 106.20% at 30.00mg/l, 145.74% at 40.00mg/l and 228.60% at 50.00mg/l while in adult fish calcium ion was similar as control in the muscle at 10.00 and 20.00mg/l and respectively less than control by 18.78, 51.75 and 58.32% at 30.00, 40.00 and 50.00mg/l as concentration improved. At 10.00 and 20.00mg/l, chloride ion was elevated above control in juvenile fish by 86.26 and 69.97% and below control by 0.02, 0.45 and 23.93% while in adult fish it was 0.70% less than control at 10.00 and 40.00mg/l. It was detected that hydrogen carbonate ion concentration in juvenile fish was the contrary of that in adult fish in that there was a steady decline below control by 5.93, 6.67, 13.33, 8.33 and 25.00% in juvenile fish and raised above control by 7.60, 11.10, 17.54, 36.61 and 53.80% in adult fish as concentration improved.

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