Figure 6

Distribution of matchups between the mesozooplankton relative biomass (only positive values sampled during night and day) from 2002 to 2016 and satellite-based habitat index (3-day habitat centred on the day of the observation; n = 16,146). Box width is proportional to the number of matchups. On each box, the central mark indicates the median and the bottom and top edges of the box indicate the 25th and 75th percentiles, respectively. Where the notches in the box plot do not overlap, it can be concluded with 95% confidence that the true medians differ. The whiskers extend to the most extreme data points not considered as outliers (1.5 times the interquartile range, i.e. 99.65% for a normal distribution).