Colombia River Estuary Legion

Black current (Kuroshio) carries marine debris originated in the east coast of Asian countries to the coasts of the Pacific Northwest.
Aerial photo image of Colombia River estuary region.

Protective outer covering of Polyzoa

Partition line of each compartments are protective outer covering of Polyzoa. Median size of each compartment is 0.3mm x 0.8mm.
Photo taken with a polarization filter set to deliver clear image.