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Published:
Feb 7, 2020Keywords:
Acute toxicity Orizo-plus Moina
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Acute toxicity of orizo-plus to the water flea, <i>Moina sp</i>
Abstract
A test was carried out to determine the acute toxicity of Orizo-plus to Moina exposed for 48 hours in concentrations of 0.0mg/l, 0.25mg/l, 0.56mg/l, 0.84mg/l, 1.40mg/l, and 1.68mg/l. The 48-hour LC50 determined was 3.11x103mg/l with upper and lower confident limits 5.01x103mg/l and 1.93x103mg/l respectively. Mortality of Moina was directly proportional to increase in concentration of Orizo-plus. There was no mortality in the control. The abnormal behaviours observed were agitation, erratic swimming, loss of equilibrium and death. There were significant differences (p<0.05) in water quality parameters.
Keywords: Acute toxicity; Orizo-plus; Moina
