TITLE:
Toxicological Assessment of Chromoleana odorata on Clarias gariepinus Juveniles
AUTHORS:
Fabian Chinedu Ogbonne, Nwokwu Peter Chidi, Ukazu Ebere Roseline
KEYWORDS:
Chromolaena odorata, Clarias gariepinus, Hemorrhage, Toxicant
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.8 No.6,
June
29,
2018
ABSTRACT: A study was carried
out to investigate the toxicity effects of exposure of aqueous extract of
Chromolaena odorata leave on gill/liver (histological) of juveniles catfish
Clarias gariepinus. The leaves were harvested fresh, air dried for 7 days under
ambient room temperature. 200 healthy juveniles catfish Clarias gariepinus
specimen with average initial weight of 12.40 ± 2.46 cm (mean total length) and
8.26 ± 1.25 g (mean body weight) were exposed to aqueous extract of Chromolaena
odorata leave at the concentration of 50, 100, 150, 200, 250 mg/l respectively.
The physical reactions observed in the fish were: erratic swimming, gasping for
air, loss of reflex, hyperactivities and skin discolorations which were more
pronounced at high concentration and exposure time. The pH and dissolved oxygen
significantly (P