TY  - JOUR
T1  - Effects of Paraquat on the Growth and Behaviour of <I>Oreochromis niloticus</I>
AU - Babatunde, M.M. AU - Oladimeji, A.A. 
JO  - Environmental Research Journal
VL  - 8
IS  - 2
SP  - 44
EP  - 47
PY  - 2014
DA  - 2001/08/19
SN  - 1994-5396
DO  - erj.2014.44.47
UR  - https://makhillpublications.co/view-article.php?doi=erj.2014.44.47
KW  - Oreochromis niloticus
KW  -fish
KW  -toxicant
KW  -growth
KW  -food
AB  - Sub-lethal bioassays were conducted on the fingerlings of 
  <I>Oreochromis niloticus</I> under a static system in the laboratory (22.7&plusmn;0.77&deg;C) 
  for a period of 8 weeks using paraquat. The toxicology effects of paraquat (1, 
  1-dimethyl-4,4-bipyridinuim dichloride) on the respiratory process, feeding 
  behavior and growth of the fingerling of <I>O. niloticus</I> were observed. 
  Respiratory roles of fish exposed to 1.02 and 2.00 mg L<SUP>-1</SUP> were significantly 
  decreased compared to the control. The feeding of the fish in the high toxicant 
  concentrations was low. The weight showed increase in the growth rate of the 
  control fish and a significant difference in the cumulative growth rate of the 
  exposed fish. The fish exposed to toxicant concentration of 2.00 mg L<SUP>-1</SUP> 
  showed an anomaly of a significant decrease in weight the 1st week of exposure, 
  an increase in the 6th week and a decrease towards the end of the experimental 
  period. Ecological reasons for reduction. In growth in exposed fish include 
  reduced ability to obtain food and to compete for food, delayed maturation and 
  reproduction. Damage done to the gills resulted in respiratory impairment of 
  the fish.
ER  -