Floating microplastic particles were measured in surface seawater above the shelf-slope break off SW Greenland. Four replicate tows of a Manta surface trawl with 200 micron mesh were carried out from CCGS Amundsen. This site was chosen to correspond with ROV camera surveys of deep-sea corals, and to assess transportation of plastics in surface currents or from shipping. Samples were frozen for later analysis.

Floating microplastics in Frobisher Bay were assessed using a surface trawl. Four replicate tows of a Manta surface trawl with 200 micron mesh were carried out at each of two sites in Frobisher Bay from CCGS Amundsen. Four tows near the city of Iqaluit measured microplastics contamination close to that city, likely of local origin. Four tows in outer Frobisher Bay, spread over a wider distance, measured microplastics contamination from the northern Labrador Sea or from ships traversing Frobisher Bay. Samples were frozen following collection, for later processing.