New research confirms that drastic changes in ocean salinity from, for example, severe freshwater flooding, as recently experienced off the coast of north-east Queensland from abnormal monsoonal conditions, provoke a similar stress response in corals as extreme heating, resulting in "freshwater bleaching" and if unabated, coral death.

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Fish provide a vital source of protein for over half the world’s population, with over 56 million people employed by or subsisting on fisheries.

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