Publication Date:
2022-12-09
Description:
The identification of microplastics (MPs; 1 µm - 5 mm) and the inferred presence of nanoplastics (NPs; 〈1 µm) in a wide variety of marine animals, including many seafood species, has raised important questions about the presence, movement, and impacts of these particles in marine food webs. Understanding microplastic dynamics in marine food webs requires elucidation of the processes involved, including bioaccumulation, trophic transfer, and biomagnification. However, in the context of microplastics and nanoplastics these concepts are often misunderstood. In this chapter, we provide a critical review of the literature on the behavior of plastic particles in marine food webs. We find clear evidence of trophic transfer, equivocal evidence for bioaccumulation, and no evidence for biomagnification. We also identify a number of knowledge gaps that limit our ability to draw firm conclusions at this time.
These supplemental documents are in support of an invited chapter to be published in this book: S.E. Shumway and J.E. Ward (Eds.) Plastics in the Sea: Occurrence and Impacts (Elsevier 2023).
Description:
Preparation of this chapter was supported by Woods Hole Sea Grant (Award No. NA18OAR4170104, project R/P–89), a NSF Graduate Research Fellowship to J.A.P.; the Gerstner Family Foundation; and the March Marine Initiative, a program of March Limited, Bermuda.
Keywords:
Microplastics
;
Nanoplastics
;
Trophic transfer
;
Bioaccumulation
;
Biomagnification
;
Food webs
;
Translocation
Repository Name:
Woods Hole Open Access Server
Type:
Other
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