دراسة تأثير مبيد التوبسان في برغوث الماء Daphnia pulex

الملخص EN

This current study detail with known effect of topsin fungicide in different concentration (5- 14) mg/l on individual of flea water Daphnia pulex after 24 h from exposure and if possible to find half lethal concentration that killed 50% from individual of D.

pulex , and know the important effects that could be notice on it after exposure to these concentration for 21 days because the first days from cycle life of D.

pulex are most sensitivity to pollutants.

The result appeared that LC50 for topsin fungicide was 9.49 mg/l.

also result showed a significant differentiation between percentage of mortality and concentration of pesticide, also found positive correlation coefficient between concentration and average of individual that lack sac of eggs.