Fig. 5From: Detection, counting and characterization of nanoplastics in marine bioindicators: a proof of principle studySchematic representation of an adult individual of C. Robusta highlighting water circulation (blue arrows). Incoming particles (red dots), with a size bigger than the mucus net grids, move to the oesophagus. On the other hand, smaller particles (green dots) preferentially pass through the pharynx ostia and they are expelled. Some particles reach the visceral cavity through the pharyngo-epicardiac openings and accumulate in the gonadsBack to article page