In oyster, preliminary work on the exposure of the Pacific oyster (Crassostrea gigas) to microplastics indicated effects on reproduction (Sussarellu et al. Green crabs (Carcinus maenas) were observed to ingest microplastics under control conditions (Farrell and Nelson, 2013, Watts et al. Such intake was observed through contaminated food (mussels artificially contaminated with microplastics), thereby suggesting the possibility of microplastic trophic transfer.