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Articles on Coral reefs

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Dozens of reefs around the world have bleached in the past three years, of which the Great Barrier Reef was merely the most high-profile. AAP Image/WWF AUSTRALIA, BIOPIXEL

The UN is slowly warming to the task of protecting World Heritage sites from climate change

Amid fears for the world’s coral reefs, the UN World Heritage Committee has issued its most wide-ranging statement so far on protecting heritage sites from climate. But the problem doesn’t end there.
The southern Great Barrier Reef escaped both of the recent mass bleaching events. But time is running out. AAP Image/ARC Centre of Excellence for Coral Reef Studies, Tory Chase

The world’s coral reefs are in trouble, but don’t give up on them yet

Tropical coral reefs can be saved from climate change and other pressures, but the window of opportunity is closing. And reefs are guaranteed to be markedly different in the future.
Whitespotted surgeonfish (Acanthurus guttatus), found in the Indo-Pacific, crop the upper portion of algae while feeding, preventing macroalgae from becoming established on reefs. Kevin Lino/NOAA

Understanding the conditions that foster coral reefs’ caretaker fishes

Plant-eating fish control the spread of seaweed and algae on coral reefs. New research explaining why populations of these fish vary from site to site could lead to better reef protection strategies.
Scientists assess coral deaths in the worst-affected part of the Reef in November 2016. Andreas Dietzel, ARC Centre of Excellence for Coral Reef Studies.

How much coral has died in the Great Barrier Reef’s worst bleaching event?

Two-thirds of the corals in the northern part of the Great Barrier Reef have died on in the reef’s worst-ever bleaching event, according to the latest underwater surveys.
We think of coral reefs as a diverse ecosystem, but each coral is an entire and complex microworld of organisms imperceptible to our eyes. Floriaan Devloo-Delva

What we have in common with corals and their unexplored microbial world

Just like humans, corals live with myriad microscopic organisms. We are just starting to understand this unseen world.

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