Assessment of heavy metal concentration and blood profiles of African catfish (Clarias gariepinus) in Sabiyal Lake, Aliero Local Government, Kebbi State, Nigeria
2025
D.J. Bawa | S. Abdulrahman | A. Tukur | B. Abubakar | S. Pourmozaffar | I. Adeshina
Although sabiyal wetland is supposed to sieve pollutants carried by the lake, growing human activity has caused it to deteriorate and shrink in size, reducing its ability to do so and allowing waste to flow into the lake. This makes evaluating the effects of wastewater in that lake urgently necessary. Since little is known about the use of serum and haematological assays to assess fish health in relation to heavy metals, this study is essential. This study aims to evaluate African catfish (Clarias gariepinus) blood profiles and heavy metal concentrations in Sabiyal Lake, Aliero, Nigeria. The study was conducted in Kebbi State's Aliero Local Government Area, specifically at Sabiyal Lake. For this investigation, five percent (5%) of the C. gariepinus that were caught were used. Samples of blood, gills, and bone were obtained using conventional techniques. Heavy metal analysis was done on all samples, while haematological, plasma, and serum analyses were done on the blood samples. The findings indicated that there was a huge variation in the haematological variables during the course of the research periods (p<0.05). Decreased plasma biochemistry (p<0.05) and different enzymes (p<0.05). The blood, gills, and bone of fish collected from Sabiyal Lake showed varying levels of heavy metal contamination. Fish collected in October had the highest concentration of lead, copper, zinc, cadmium, and iron, while fish recorded in December had the lowest concentration. The investigation found that the high concentration of heavy metals had an impact on the fish from Sabiyal Lake's haematology, biochemistry, and blood enzymes. Therefore, more study should be done to monitor and control the fish and water in Sabiyal Lake.
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