Abstract

This research work investigates kidney analysis of Clarias gariepinus in Jabi Lake. 20 Clarias gariepinus was obtained from Jabi lake ranging between 34.5-49.0 cm and 340-850 g respectively. The fishes were divided into 3 groups with varying lengths and weights; Group 1 contain 8 fishes 34.5-39.5 cm in length and 340-500 g in weight. Group 2 contain 6 fishes 40-39.7 cm in length and 350-500 g in weight while Group 3 contains 6 fishes 43.0-49.0 cm in length and 550-850 g in weight. At the end of data gathering and analysis, result indicated that using level of significance (p<0.05), Urea was significant to weight in all the groups. While there was a significant decrease (p<0.05) in the urea and creatinine levels of catfish in group 3 recording 0.35 mg/dl as the lowest in creatinine and 2.04 mg/dl in Urea. Maximum level of Urea and creatinine was recorded as 28.8mg/dl and 1.91 mg/dl were obtained from catfish in group 2 and 3 respectively. The electrolyte, concentration of Na, K and Cl in the kidney of the experimental fish in pond one were all within the normal range limits. While Na, K and Cl at both pond 2 and 3 were all above normal range limits. This study concluded that weight has an effect on the creatinine level of Clarias gariepinus and electrolyte level in Clarias gariepinus is subjected to pollution in their habitat.