Figure 13: Heatmap of average percentage Didemnum coverage across all sites divided by plate (1-10) and orientation (top/bottom). Figure depicts plates upside-down as they were mounted in the field with the larger ‘base’ plate, number 10, on top and in descending order. The higher percent cover occurred consistently on the underside of the plates.Overall Didemnum was present in greater numbers within the ARMS, and did not grow as much on the outer plates.Mean levels of coverage varied from 0 to 36.6%.