Boxplots of total acceleration, amplitude ratio, and period for codends evaluated in a flume tank test.

The horizontal line in the middle of the boxes represents the 50th percentile (median) the top and bottom limit of the boxes represents the 75th percentile and 25th percentile, respectively. Upper and lower whiskers are the 75th (or 25th) percentile − 1.5 * interquartile range. Circles are values outside the range of the whiskers. Letters represent a significant difference between treatments (shaking or T90 codend) at a specific water velocity via post hoc analysis at an α of 0.05.