Acute toxicity and genotoxicity of sublethal concentrations of sodium lauryl sulfate and sodium tripolyphosphate against Clarias gariepinus (The African Sharptooth Catfish)
No Thumbnail Available
Sogbanmu, Temitope O.
Faculty of Science, University of Lagos, Nigeria
Personal care products (PCPs) are emerging pollutants which have been detected in aquatic environments and are potentially toxic to aquatic organisms. The acute toxicity of two (2) PCPs - sodium lauryl sulfate (SLS) and sodium tripolyphosphate (STPP) to fingerlings of Clarias gariepinus (the African Sharptooth Catfish) was evaluated over a period of 96 h. Furthermore, genotoxic (erythrocytic micronuclei frequencies) evaluations were conducted in juveniles of C. gariepinus exposed to sublethal concentrations of the test chemicals over a period of 28 days. The median lethal concentration of SLS and STPP to C. gariepinus was 14.75 mg/L and 861 mg/L respectively with SLS being x59 more toxic than STPP to C. gariepinus. Micronuclei frequencies in SLS-exposed fishes were significantly higher (p<0.05) at day 14 (3.44±1.08 ‰) and day 28 (5.78±1.18 ‰) compared to the control (day 14- 0.78±0.22 ‰; day 28- 1.56±0.29 ‰). However, in STPP-exposed fishes, micronuclei frequencies were significantly higher (p<0.05) at day 28 (4.11±0.89 ‰) only compared to the control. The study showed that non-target aquatic animals such as C. gariepinus might be at risk from exposure to these chemicals in surface waters from diffuse sources with SLS posing a higher risk than STPP. Targeted environmental management and advocacies are recommended to promote sustainability of life below water (United Nations Sustainable Development Goal 14).
Catfish , DNA damage , Sodium Dodecyl Sulphate, , Sustainable Development , Environmental pollutants
Ogugba-Udume, F. C., Sogbanmu, T. O. and Saliu, J. K. (2020). Acute toxicity and genotoxicity of sublethal concentrations of sodium lauryl sulfate and sodium tripolyphosphate against Clarias gariepinus (The African Sharptooth Catfish). Journal of Scientific Research and Development 19(1): 185-191