Related topics: coral reefs · coral · great barrier reef

What happens to marine life when oxygen is scarce?

In September 2017, Woods Hole Oceanographic Institution postdoctoral scholar Maggie Johnson was conducting an experiment with a colleague in Bocas del Toro off the Caribbean coast of Panama. After sitting on a quiet, warm ...

Great Barrier Reef avoids UNESCO 'in danger' listing

Australia on Friday avoided having the Great Barrier Reef listed as an endangered world heritage site by UNESCO, despite extensive climate change-fuelled damage to the ecosystem's corals.

A new model of coral reef health

Scientists have developed a new way to model and map the health of coral reef ecosystems using data collected on the Khaled bin Sultan Living Oceans Foundation's Global Reef Expedition. This innovative method, presented today ...

Biodiversity, climate change and the fate of coral reefs

An international group of researchers representing thousands of coral scientists across the globe is calling for new commitments and actions by the world's policymakers to protect and restore coral reefs.

The shifting dynamics of temperate marine ecosystems

At Shikine Island, Japan, kelp forests and abalone fisheries were once common, but over the last twenty years they have disappeared. Now, researchers from Japan have discovered that these temperate coastal marine ecosystems ...

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Reef

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water (six fathoms or less at low water).

Many reefs result from abiotic processes—deposition of sand, wave erosion planning down rock outcrops, and other natural processes—but the best-known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and calcareous algae. Artificial reefs such as shipwrecks are sometimes created to enhance physical complexity on generally featureless sand bottoms in order to attract a diverse assemblage of organisms, especially fish.

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