Oyster growth is likely compromised as juvenile oysters are exposed to higher concentrations of atrazine. The oyster group exposed to 30µg/L had the lowest average growth out of all the groups, as compared to the control group, which exhibited the highest growth rate of all tested groups (Fig. 6). Both control and acetone groups start out with the steepest upward slopes meaning they had very high and steady growth rates, whereas all of the atrazine treated groups have either slight slopes or just a straight line, meaning their growth was not substantial. Additionally, the control and acetone groups both ended the treatment period with the most amount of weight gained. The atrazine treatment ended on September 21, 2018, that was the date in which five out of the fifteen oysters on each group were taken out for genetic analysis. Subsequently, there was a drop in the oyster weights on the following days as the number of oysters in each group went from fifteen to ten which explains the sudden drop in the weight curve in Fig. 5.