TY  - JOUR
T1  - Behavioural Responses of <i>Clarias gariepinus</i> (Burchell 1822) Fingerlings Exposed to Varied Concentrations of Xylene and Diesel
AU - Davies, I.C. AU - Uedeme-Naa, B. 
JO  - Journal of Food Technology
VL  - 20
IS  - 2
SP  - 13
EP  - 20
PY  - 2022
DA  - 2001/08/19
SN  - 1684-8462
DO  - jftech.2022.13.20
UR  - https://makhillpublications.co/view-article.php?doi=jftech.2022.13.20
KW  - Behavioural
KW  -responses
KW  -Clarias gariepinus
KW  -fingerlings
KW  -xylene and diesel
AB  - The toxicity of the combination of xylene and
diesel at 50:50 ratio on the African catfish (<i>Clarias
gariepinus</i>) was investigated using static bioassays for 96
h. No statistical significance was observed from the
othergroups and the control group. Physicochemical
parameters after exposing <i>C. gariepinus</i> to xylene: diesel
for 24 h was no significant difference (p>0.05) among the
different concentration gradients and there was also an
increase variation along concentration gradient observed
after 96 h. The behavioral responses of the test fish were
observed at 24-96 h of exposure. Normal behavioral
responses were observed in the control. Fish exposed to
25-50 mg L<sup>-1</sup> showed normal behavior from 24-48 h but
afterwards, the fish that were alert stopped swimming and
remained static for a while in response to the sudden
changes in the surrounding environment. Generally, fish
exposed to higher concentrations such as 100-250 mL L<sup>-1</sup>
of the test chemicals showed progressive hyperventilation
and abnormal behavior such as gulping of air, an erratic
swimming movement, very fast swimming, jumping and
displaying a vigorous jerky movement suffocation and
loss of reflex. A faster opercula and tail beat movement
was also observed with Spiraling. The behavioral
responses increased significantly (p<0.05) with increase
in concentration per time as compared to the control
group of fish. Noticeable behavioural difference was
recorded for the different concentration. An eco-friendlier
chemical known LC<sub>50</sub> that is within the acceptable level
recommended by WHO in well simulation and cleaning
for a sustainable biodiversity and healthy aquatic
environment.
ER  -