Summer Hot Snaps and Winter Conditions: Modelling White Syndrome Outbreaks on Great Barrier Reef Corals

A strong correlation (r² = 0.953) exists between summer thermal anomalies and outbreaks of coral diseases known as white syndromes on the Great Barrier Reef, with particularly hot snaps during summer significantly increasing disease abundance. The study also found that cold winters reduce outbreak risk, possibly by lowering pathogen levels, while mild winters often precede outbreaks. Warm winters, however, appear to enhance coral resistance. By integrating winter and summer thermal data, researchers developed a predictive model offering a Seasonal Outlook of disease risk three-to-six months in advance and near real-time monitoring during summer. This satellite-derived system aims to aid reef managers in preparing for and responding to potential disease outbreaks, particularly in the context of rapidly changing climate conditions.

Heron, S. F., Willis, B. L., Skirving, W. J., Eakin, C. M., Page, C. A., & Miller, I. R. (2010). Summer Hot Snaps and Winter Conditions: Modelling White Syndrome Outbreaks on Great Barrier Reef Corals. PLoS ONE, 5(8), e12210. https://doi.org/10.1371/journal.pone.0012210