Articles on Coral reefs

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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.
Microbes living on corals are instrumental in keeping coral reefs healthy. Reuters/David Gray

Healthy microbes make for a resilient Great Barrier Reef

A new study provides insight into coral-dwelling microbial communities and how they react to pollution, overfishing, and climate change. What does it mean for the Great Barrier Reef?
Coral Bleaching at Lizard Island on the Great Barrier Reef. © XL Catlin Seaview Survey

Great Barrier Reef bleaching would be almost impossible without climate change

This summer's record-breaking coral bleaching on the Great Barrier Reef was made 175 times more likely thanks to climate change.

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