| Carcinus maenas | United Kingdom | 15033 and 267 microspheres/ml in hemolymph at 21 days and 24 h respectively | PS | Farrell and Nelson, 2013 |
| Gobio gobio | 11 French streams | 12% contained plastic | Fibers and pellets | Sanchez et al., 2014 |
| Crangon crangon | Southern North Sea and Channel area | 1.23±0.99 MPs/shrimp | Fiber – film – spherule – fragment | Devriese et al., 2015 |
| Arenicola marina | French–Belgian–Dutch coastline | 1.2±2.8/g w. w. | PS | Van Cauwenberghe et al., 2015 |
| Mytilus edulis |
| 0.2±0.3 MPs/g w. w. |
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| Dicentrarchus labrax | Mondego estuary, Portugal | 1.67±0.27 MPs/fish | PES, rayon, PP | Bessa et al., 2018 |
| Diplodus vulgaris |
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| Platichthys flesus |
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| Venerupis philippinarum, |
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| Crassostrea gigas | Coastal British Columbia, Canada | 0.03–0.05 MPs/g dry-tissue weight | Fibers from textiles (including nylon and PES) | Covernton et al., 2019 |
| Stolephoruos commersonnii | Madu-Ganga Estuary, Sri Lanka | 30.17±3.58 items/100 mg in gut | Fiber shape, PP as polymer | Praboda et al., 2020 |
| 29.33±1.19 items/g in muscles |
| Caenorhabditis elegans |
| Various concentrations 0, 0.1, 1, 10, and 100 μg/L | PS | Yu et al., 2020 |
| Cinclus cinclus | South Wales, UK | MPs were found in 50% of regurgitates (n = 72) of Eurasian dipper (Cinclus cinclus) | Over 95% of particles were fibers, identified multiple polymers, including PES, PP, PVC, and VC. | D'Souza et al., 2020 |
| Gadus morhua | Bergen, Norway | 3.4 μg/g wet weight in cod liver | PVC >PS> PET | Haave et al., 2021 |
| Dreissena polymorpha | Lake Iseo, North Italy | 0.03–0.27 items/individual | PET (45%), nylon (20%), PP (20%), PA (10%), and PVC (5%). | Pastorino et al., 2021 |
| Dosidicus gigas | Eastern Pacifc and Galápagos archipelago, Ecuador | 93% MPs/DT | Fibers | Alfaro-Núñez et al., 2021 |
| Alopias pelagicus |
| 87% MPs/DT |
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| Coryphaena hippurus |
| 87% MPs/DT |
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| L. vannamei | Santa María-La Reforma (SAMARE) lagoon, Mexico | 36.3±5.6 ítems μg/g DW in GT | Fiber type (74.7%), fragments (22.7%) predominant polymers were cotton and synthetic PET | Valencia-Castaneda et al., 2022 |
| Unio crassus | Tisza River, Hungary | 5.2–8.3 items/individual | Fibers | Almeshal et al., 2022 |
| Unio tumidus |
| 2.7–4.9 items/individual |
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| Aristaeomorpha foliacea | Eastern Ionian Sea | 2.97±0.3 items/individual | Fibers, 83.82 % of fibers were PES | Leila et al., 2023 |
| Mytilus galloprovincialis | Morocco | 0.92–1.88 particles/g w.w. | Fibers were the dominant shapes and polymers PET, PP, and PE were the most abundant in mussels | Abelouah et al., 2023 |
| M. galloprovincialis | Tunisia | 0.79–1.47 particles/g w.w. |
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| Crassostrea virginica | Coastal areas of New York | 0.008 particles/g w.w. | MP fibers and fragments (i.e. PET, PS, and PP) | Minder et al., 2023 |
| Pleoticus muelleri | The Bahía Blanca Estuary (BBE), the southwest Atlantic coast of South America | 2.15–3.69 | Fibers | Colombo et al., 2023 |
| MP/g w.w. |
| M. rosenbergii | Trang river, Thailand | 3.50±0.34/5 g weight in head | Fiber | Tee-hor et al., 2024 |
| P. monodon | Negombo Lagoon, Sri Lanka | 8.29±4.63 items/g of GT, GI | Fibers (93%), fragments | Lawan et al., 2024 |
| P. indicus |
| 5.52±3.78 items/g of GT, GI |
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