These areas have open beaches
and debris is attributed to highly populated cities, tourist locations
and navigation activities (Guebert-Bartholo et al., 2011; Tourinho
et al., 2010). In these cases, the concentration of debris might be related
to geomorphological barriers that keep debris entrained (i.e.,
shorelines). Offshore winds sweeping the debris to the sea, littoral
currents transporting debris from one beach to the other, and proximity
to river drain-off and zones with high sedimentation rates
should be explored.