International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 1, Part A
Evaluation of the hatching and growth performance of Clarias gariepinus exposed to benzene (Burchell, 1822)Author(s):
Daniel UI, Oriakpono OE and Ogolo CDAbstract:
The study was conducted to determine the effects of benzene on the hatching and growth of Clarias gariepinus. The experiment was carried out for a period of 5 weeks. The brood stock (two males and two female of Clarias gariepinus) used for hatching the eggs were maintained for 3 weeks on a diet of 40% crude protein (3% body weight). The research was carried out in triplicate of five different concentrations of Benzene in addition to the control in eighteen plastic bowls with ne following concentrations of Benzene: 0ml/l (control), 0.03ml/l, 0.06ml/l, 0.09ml/l, 0.12ml/1 and 0.15m1/l respectively. The results showed that 0. 15m1/l concentration of benzene caused 100% mortality to the exposed eggs after the 5th day while 0.12ml/l caused 100% mortality after the seventh day. The research revealed that the toxicant; benzene, can affect both the hatching and growth of C. gariepinus. However, at a concentration of 0.12ml/l of C6H6, there was no observable increase in length after week 1 and 2. This was also observed at a concentration of 0.15ml/l of C6H6 for week 1 and 2. The highest mean length observed was 1.5 cm at a concentration of 0ml/l of C6H6. The study therefore opined that benzene should be used with restraint and prevented from entering into the environment in order to reduce hatching success and retarded growth performance leading to reduction or shortfall in annual fish yield in the wild.Pages: 41-43 | 156 Views 10 DownloadsDownload Full Article:
How to cite this article:
Daniel UI, Oriakpono OE, Ogolo CD. Evaluation of the hatching and growth performance of Clarias gariepinus exposed to benzene (Burchell, 1822). Int J Fish Aquat Stud 2020;8(1):41-43.