Effect of sublethal concentration of sniper 1000EC on weight and length growth of Oreochromisniloticus obtained from Asa dam under laboratory conditions
No Thumbnail Available
Date
2018-04-17
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
and Publications Committee, University of Ilorin
Abstract
The study investigated the effect of sublethal concentration of sniper
1000EC on the weight and length growth of Oreochromis niloticus
obtained from Asa dam under laboratory conditions. Indiscriminate use of
Sniper 1000EC by fishermen has become a serious problem in Northern
region of Nigeria. Juveniles of Oreochromis niloticus (mean body weight
7.05± 1.02; mean standard length.9.60±0.38cm) were subjected to 5
sublethal treatment levels: 0.00mg/L is the control, 0.12, 0.15, 0.19 and
0.25mg/L. There was no significant difference between water quality
parameters of the exposed and control groups. A 56 day exposure to
sublethal concentrations of the toxicant led to a significant decrease
(p<0.05) in specific and relative growth rate in the exposed fish species in
comparison with their controls. Change in weight and length decreases
with increasing sublethal concentrations of sniper 1000EC. It is concluded
that depressive growth rate in the exposed fish species were consequences
of exposure to the toxicant (sniper 1000EC).It is recommended that the
use of Sniper 1000EC by local fishermen be banned to save the aquatic
environment from destruction.
Description
Keywords
Sniper 1000EC, Oreochromis niloticus, chronic toxicity and growth rates.