Lamb, Joleah B., Willis, Bette L., Fiorenza, Evan A., Couch, Courtney S., Howard, Robert, Rader, Douglas N., True, James D., Kelly, Lisa A., Ahmad, Awaludinnoer, Jompa, Jamaluddin, and Harvell, C. Drew (2018) Plastic waste associated with disease on coral reefs. Science, 359 (6374). pp. 460-462.

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Abstract

Plastic waste can promote microbial colonization by pathogens implicated in outbreaks of disease in the ocean. We assessed the influence of plastic waste on disease risk in 124,000 reef-building corals from 159 reefs in the Asia-Pacific region. The likelihood of disease increases from 4% to 89% when corals are in contact with plastic. Structurally complex corals are eight times more likely to be affected by plastic, suggesting that microhabitats for reef-associated organisms and valuable fisheries will be disproportionately affected. Plastic levels on coral reefs correspond to estimates of terrestrial mismanaged plastic waste entering the ocean. We estimate that 11.1 billion plastic items are entangled on coral reefs across the Asia-Pacific and project this number to increase 40% by 2025. Plastic waste management is critical for reducing diseases that threaten ecosystem health and human livelihoods.

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