Microplastics in U.S. West Coast Seafood
Author Information
Author(s): Traylor Summer D., Granek Elise F., Duncan Marilyn, Brander Susanne M.
Primary Institution: Portland State University
Hypothesis
We hypothesized higher AP concentrations in riverine than oceanic stages of lamprey and in retail-purchased rather than vessel-caught individuals due to their increased exposure to plastic during seafood processing.
Conclusion
The study found anthropogenic particles in the edible tissues of various seafood species, indicating widespread contamination.
Supporting Evidence
- Anthropogenic particles were found in 180 of 182 individuals sampled.
- Finfish contained 0.02–1.08 AP/g of muscle tissue.
- Pink shrimp had the highest average AP concentration at 10.68 AP/g.
- Retail-purchased lingcod had higher AP concentrations than vessel-retrieved lingcod.
- Riverine young adult Pacific lamprey contained higher concentrations of APs than ocean phase adults.
Takeaway
This study shows that tiny plastic pieces are found in almost all seafood sampled from the U.S. West Coast, which could be harmful to both fish and people who eat them.
Methodology
The study quantified anthropogenic particles in the edible tissue of various seafood species by digesting and analyzing samples under a microscope and using spectroscopy for identification.
Limitations
The sample size for larger finfish was small, limiting the generalizability of the findings for these species.
Statistical Information
P-Value
0.0028
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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