Abstract
Plastics with particle sizes of 100 nm to 5 mm are known as microplastics. The contamination of seafood-based feeds by larger microplastics (20 μm to 5 mm) is a growing concern. Here, we analyzed fish and shrimp meals. Microplastics were extracted using density separation methods and characterized using scanning micro Fourier transform infrared spectroscopy (μ-FT-IR). The average microplastic abundance in shrimp meal was 10.7 microplastics·100 g−1. In fish meal, 1.02% of the microplastics were smaller than 1 mm, while most of the microplastics in shrimp meal were 1–5 mm. Eight colors of microplastics were observed; black, red, and orange microplastics have been rarely reported in previous studies. The microplastics found included films, fibers, and fragments, with film-type microplastics being the most common. The main chemical components of fiber-type microplastics were olefins and polyester, while film- and fragment-type microplastics were mainly paraffin and polyethylene. Additional in-depth studies of microplastics in feeds are necessary to provide data support for feed safety assessments.
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References
Asmonaite G, Sundh H, Asker N, Carney Almroth B (2018) Rainbow trout maintain intestinal transport and barrier functions following exposure to polystyrene microplastics. Environ Sci Technol 52(24):14392–14401
Dris R, Gasperi J, Saad M, Mirande C, Tassin B (2016) Synthetic fibers in atmospheric fallout: a source of microplastics in the environment? Mar Pollut Bull 104(1–2):290–293
FAO (Food and Agriculture Organization of the United Nations) (2020) Fishery statistical collections; consumption of fish and fishery products. FAOSTAT - Food Balance Sheets [Online]. FAO, Rome, Italy
Guyu P, Bangshang Z, Dongqi Y, Lei S, Huahong S, Daoji L (2017) Microplastics in sediments of the Changjiang Estuary, China. Environ Pollut (barking, Essex: 1987) 225:283–290
Karami A, Golieskardi A, Ho YB, Larat V, Salamatinia B (2017) Microplastics in eviscerated flesh and excised organs of dried fish. Sci Rep 7(1):5473
Law KL, Thompson RC (2014) Oceans microplastics in the seas. Science 345(6193):144–145
Li S, Zhang L, Chen YY, Lü J, Wang Y, Yue YL (2019) Research progress on detection technology of microplastics in drinking water. Water Purification Technol 38(04):1–8
Liu M, Lu S, Song Y, Lei L, Hu J, Lv W, Zhou W, Cao C, Shi H, Yang X et al (2018) Microplastic and mesoplastic pollution in farmland soils in suburbs of Shanghai, China. Environ Pollut 242(Pt A):855
Liu HW, Li YX, Wang SY, Zhang XJ (2019) Effect of piglet production performance by adding different kinds of fishmeal substitutes. Anim Nutr 03:17–21
Ran W (2018) Research on the Status of Microplastics Pollution in Sediments and Oysters in the Bohai Sea and the Yellow Sea. Chinese Academy of Sciences (Yantai Institute of Coastal Zone Research)
Rillig MC (2012) Microplastic in terrestrial ecosystems and the soil? Environ Sci Technol 46(12):6453–6454
Rochman CM (2018) Microplastics research-from sink to source. Science 360(6384):28–29
Sun CJ, Jiang FH, Li JX, Zheng L (2016) The research progress in source, distribution, ecological and environmental effects of marine microplastics. Adv Marine Sci 34(04):449–461
Wang JY, Lin XZ (2018) Global ocean governance in addressing plastic and microplastic pollution. Pacific J 26(04):79–87
Wang YY, Li XG, Zhang DH (2016) Study of methods for extracting microplastics in sediments. World Sci-Tech R & D 38(01):105–109
Wang K, Lin KD, Yuan DX (2017) Research progress on the analysis of microplastics in the environment. Environ Chem 36(01):27–36
Wang HY, Zhao HR, Gui F, Zhao S (2019) Pollution characteristics of microplastics in marine crabs in Zhoushan coastal waters. Rural Econ Sci 30(09):66–68
Yang L, Xu C, Zhang ZL, Li LL, Sun XC, Wang WS (2018) Research progress of microplastics. Green Packaging 9:63–66
Zhang SC, Pang MX, Zhao HY, Ding L, Tang YJ, Dai JG, Tong JG, Jin G (2019a) Situation and harm of micro-nano plastic pollution in seafood. J Food Saf Qual 10(09):2689–2696
Zhang SM, Cha J, Meng W, Qi GX, Ren LH, Feng CH, Gao P, Lü Z (2019b) A review of microplastics in environment and their effects on human health. China Plast 33:81–88
Zhou Q, Zhang HB, Li Y, Luo YM (2015) Progress on microplastics pollution and its ecological effects in the coastal environment. Chin Sci Bull 60(33):3210–3220
Zhou Q, Zhang HB, Zhou Y, Li Y, Xue Y, Fu CC, Tu C, Luo YM (2016) Separation of microplastics from a coastal soil and their surface microscopic features. Chin Sci Bull 61(14):1604–1611
Acknowledgements
The authors acknowledge the financial support of the Shanghai Agriculture Applied Technology Development Program, China (Grant No. G20190301), the Shanghai Science and Technology Commission Program (Grant No. 20392002200), and the Natural Science Foundation of Shanghai (Grant No. 19ZR1434300).
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Yao, C., Liu, X., Wang, H. et al. Occurrence of Microplastics in Fish and Shrimp Feeds. Bull Environ Contam Toxicol 107, 684–692 (2021). https://doi.org/10.1007/s00128-021-03328-y
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DOI: https://doi.org/10.1007/s00128-021-03328-y