Long-Term Changes in the Abundance, Size, and Morphotype of Marine Plastics in the North Pacific.

10 , 12 Although the amount of plastic debris on the OSL has increased over time, the long-term trend of marine plastic pollution is unexplored. Archived continuous plankton recorder (CPR) samples from the North Atlantic indicate an increasing trend in macroplastic entanglement since the late 1950s; however, the subsequent increasing pattern is ambiguous, as it is semiquantitative, in terms of the frequency of occurrence. 13 As the earliest quantitative record was obtained using plankton net sampling in 1972, 14 the abundance of plastic debris

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