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Polystyrene spherules in coastal waters.

E J Carpenter, S J Anderson, G R Harvey

    Science (New York, N.Y.)
    |November 17, 1972
    PubMed
    Summary
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    Polystyrene spherules in New England waters contain polychlorinated biphenyls. These plastic particles are ingested by fish, potentially causing intestinal blockages.

    Area of Science:

    • Marine Biology
    • Environmental Science
    • Ecotoxicology

    Background:

    • Polystyrene spherules are prevalent in southern New England coastal waters.
    • Two types of spherules exist: crystalline (clear) and white, opaque (pigmented).
    • Spherules harbor bacteria and absorb polychlorinated biphenyls (PCBs) from seawater.

    Purpose of the Study:

    • To investigate the presence and characteristics of polystyrene spherules in coastal waters.
    • To determine the interaction of these spherules with marine fauna.
    • To assess the potential ecological risks associated with microplastic ingestion.

    Main Methods:

    • Spherule characterization (size, type, composition).
    • Analysis of bacterial presence and PCB contamination.

    Related Experiment Videos

  • Feeding trials with various marine species to assess consumption.
  • Observation of ingestion effects on fish.

    • Main Results:

    • Polystyrene spherules, ranging from 0.1 to 2 mm, are abundant.
    • White, opaque spherules contain PCBs at 5 ppm.
    • Eight fish species and one chaetognath selectively consumed white spherules.
    • Ingestion may cause intestinal blockage in smaller fish.

    Conclusions:

    • Polystyrene spherules represent a potential ingestion hazard to marine life.
    • PCB-contaminated microplastics pose a risk through trophic transfer.
    • Further research is needed to understand long-term impacts on marine ecosystems.