Repeated exposure decreases fragmentation. Notably, not all ingested beads were fragmented in the current study. To further explore this observation we compared the proportion of fragments to whole beads isolated from whole krill homogenates and faecal pellets exposed to the high and low treatments. The proportion of fragmented beads egested by the krill on days 1 and 4 were compared to assess the effect of repeated exposure. An extra sample point was added on day 4 to assess fine-scale temporal variation within a daily cycle after repeated exposure.