When looking at the average difference between weights, two groups can be observed. The first average difference weight group looks at the difference of oyster weights between the beginning and end of the atrazine treatment, weights belong to fifteen oysters from each group. The second average difference weight group looks at the difference of oyster weights in the post atrazine period, from September 25, 2018, to October 29, 2018, the last day in which weight measurements were taken. Weights in the second average difference weight group belong to ten oysters from each group, as five oysters were taken out for further genetic analysis.  The highest difference shows the highest growth. In the first group, the sample that had the highest growth was the control followed by the acetone. As the oysters were having daily atrazine exposure while the first group measurements were taken and assuming that atrazine sets back oysters growth, it makes sense that the control and acetone samples that were not exposed to atrazine would have the highest growth. In the second group, the highest value also belongs to the control, probably because their normal growth cycle was never interrupted by atrazine. Following the control, the atrazine 30 sample exhibits the highest growth.
 
Discussion on Bacteria
  Further research on bacterial recruitment as a consequence of increased atrazine exposure demonstrated that some bacterial orders have the ability to degrade atrazine by themselves or through bacterial community interactions. Based on the data seen in figure 1, the more oysters come in contact with higher concentrations of atrazine the fewer bacteria there are. Of the few strains of bacteria that were present in the high atrazine samples, like atrazine 30, some have been associated with atrazine degrading capabilities. Currently, there are studies that analyze the atrazine degrading properties of both Nocardia and Ochrobactrum, two strains of bacteria found in all atrazine exposed samples and in all samples respectively. The same strains of bacteria in atrazine-exposed soil cultures have been found within the microbiome of the oysters.      
Other research suggests the bacterial species Phaeobacter, also found within the top ten most abundant genus in the oyster samples (Fig 1), can have biocontrol agent properties and reduce the negative impacts of bacterial pathogens on the health of  Crassostrea Virginica (Karim et al. 2013). The more Phaeobacter the less Vibrio (I would have to include both tables?)