Geophysical features influence the accumulation of beach debris on Caribbean islands

Alexandra M. Schmuck, Jennifer L. Lavers, Silke Stuckenbrock, Paul B. Sharp, Alexander L. Bond

    Research output: Contribution to journalArticlepeer-review

    49 Citations (Scopus)

    Abstract

    Anthropogenic beach debris was recorded during beach surveys of 24 Caribbean islands during April 2014–April 2016. Beach debris was classified according to material type (e.g., polystyrene) and item use (e.g., fishing). Geophysical features (substrate type, beach direction, and human accessibility) of sample sites were recorded in order to investigate their relationship with debris density. Results suggest the density of macro debris (items > 5 mm) is highest on uninhabited, sandy beaches facing a leeward direction. Higher debris quantities on inaccessible beaches may be due to less frequent beach clean ups. Frequently accessed beaches exhibited lower macro, but higher micro debris (items 1–5 mm) densities, possibly due to removal of macro debris during frequent beach clean ups. This suggests that while geophysical features have some influence on anthropogenic debris densities, high debris densities are occurring on all islands within the Caribbean region regardless of substrate, beach direction, or human accessibility.
    Original languageEnglish
    Pages (from-to)45-51
    Number of pages6
    JournalMarine Pollution Bulletin
    Volume121
    Issue number1-2
    DOIs
    Publication statusPublished - 1 Aug 2017

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