STUDY THE EFFECT OF SUPERMETHRIN PESTICIDE ON WATER FLEA Daphnia pulex (O.:Cladocera, F.: Daphniidae) | ||
| Euphrates Journal of Agriculture Science | ||
| Article 1, Volume 8, Issue 3, September 2016, Pages 144-153 | ||
| Author | ||
| May Hameed Mohammad Aldehamee | ||
| Abstract | ||
| This study deals with known different concentrations of Supermethrin pesticide on life of D. pulexafter 24 hour when it exposed to different pesticide concentrations, the experiment begun from September 2015 to February 2016, which results appeared that percentage of water flea mortalities were (0 ,11.34, 24.67, 38, 48, 56, 62.67, 80, 96) % for (0 ,0.001, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07) mg/l concentration respectively, and percentage formed of egg sacs for survival individuals were (100 ,75, 56, 41.9, 32, 20 16, 4.6, 0) % for each concentration that mentioned above respectively. Also the study deals with effect of pesticide with 0.2 concentration of Spirogyra algae as food through treatment which is suitable food for most type ofcrustaceans. The results appeared that mortalities percentage of water flea were (0 ,1, 3, 4, 7, 12, 33, 42, 44)% . and egg sacs formed percentage for survival individuals (97, 90, 90, 86, 64, 54, 36, 12, 10) % for concentrations (0 ,0.001, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07) mg/l respectively after exposed to the same concentrations for the purpose of monitoring formation of egg sacs. The result also appeared that no significant differences were found in the results at the level of probability 0.05;however, the concentrations were appeared positive correlation with mortalities percentage and negative correlation with percentage of egg sacs formation. | ||
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