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Suffocating seas: Low oxygen levels emerging as third major threat to tropical coral reefsOxygen levels on coral reefs naturally fluctuate in a daily cycle, with dissolved oxygen peaking around noon and gradually falling as the light fades. At night when photosynthesis stops ...
Record ocean heat has taken a devastating toll on one of the world’s greatest natural wonders, with coral bleaching on Australia’s Great Barrier Reef reaching “catastrophic” levels, a new study has ...
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