Figure S2. Time-averaged concentration of PON in suspended and
sinking particles and the partition of sinking particles to total.
Bar graphs display background suspended (left) and sinking (middle) and
the fractional contribution of sinking particle concentrations to the
total (in %; right) for PON concentrations. Outliers are represented as
red triangles. The values are cruise-wide averages calculated for six
depth layers (20–25, 50–65, 95, 195, 300–350 and 500 m). Error bars
are the standard deviations of the concentrations averaged within each
depth layer and thus are reflective of the dataset variability rather
than the propagated uncertainty of each datapoint. Numbers on the right
are representative of the total number of observations per depth layer.