Power explains how the trash tends to accumulate off the coast of Roatan:
"The trash collects on tide and current lines. When the currents, tides, and winds are just right, it collects in huge lines. Typically, these lines are where mats of sargassum form, a type of open-ocean seaweed that is a crucial habitat for juvenile fish and turtle species. In these photos, the amount of trash actually surpassed the amount of sea weed."