“…In size, shape, and color, MPs as an environmental stressor resemble plankton, which makes it difficult for small fish and invertebrates to distinguish MPs from food [ 4 , 8 ]. As shown in Table 2 , 48 Procambarus clarkii from a pond breeding station and rice-crayfish co-culture breeding station in Hubei in China [ 18 ], 6 fish species in Han River and its tributaries in South Korea [ 28 ], 38 of 424 fish in the northern Baltic Sea [ 30 ], bivalve in Korea [ 35 ], 7 of the popular shellfish bought from the largest fish markets in Qingdao and Xiamen in China [ 44 ], 9 species of zooplankton taxa in Bohai Sea and Yellow Sea [ 45 ], 60 species of the freshwater fish Squalius cephalus in the Marne and Seine rivers around Paris [ 46 ], 27 species of marine and freshwater fish from the South China Sea, the East China Sea, the Yangtze River Estuary and Tai Lake [ 47 ], 73 of the 150 examined fish in Northwest Portuguese coastal waters, North East Atlantic Ocean [ 48 ], 32 fish species from Zhanjiang mangrove wetland, except Atherina bleekeri and Stolephorus commersonnii [ 49 ], and 13 of 17 commercial fish species in the north-eastern Mediterranean Sea [ 50 ] were found to have MPs in their body. Furthermore, fish meal is an important exposure route of MPs for aquatic animals.…”