Abstract
The toxicity of aqueous extracts of Parkia biglobosa pods on Clarias gariepinus juveniles was investigated over a 96hrs exposure period using the static bioassay. Fish exposed to an extract of P. biglobosa pods exhibited respiratory distress, abnormal behaviours, and death. No mortality was recorded in the control fish. The 96 hrs lethal concentration 50 (LC50) value for aqueous extracts were 656.05µl/l at upper and lower confidence limits of 740.02µl/l and 582.61µl/l respectively. It was concluded that aqueous extracts of P. biglobosa pods are toxic to C. gariepinus juveniles which also impairs water quality and affects fish production.
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