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Crustose coralline algae can contribute equal or even larger amounts of calcium carbonate to coral reefs than corals, yet their contribution is often underrepresented or omitted in coral reef carbonate budgets, according to a conceptual model developed from a meta-analysis of calcification rates and a case study in French Polynesia.

Corals show a heightened sensitivity to a combination of light and thermal stress after prolonged exposure to high ocean temperatures, according to four months-long mesocosm experiments that disentangle the effects of light and ocean warming.