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Coral reefs by Isaac Benhaimoud
Coral reefs by Isaac Benhaimoud
Coral reefs by Isaac Benhaimoud
Coral reefs by Isaac Benhaimoud
Coral reefs by Isaac Benhaimoud
Coral reefs by Isaac Benhaimoud
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Coral reefs by Isaac Benhaimoud

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  • 1. by Isaac David Benhaimoud CORAL REEFS
  • 2. THE CORAL REEFS A living coral reef is an underwater ridge or mound built of fragments of coral sands and limestone. The Great Barrier-Australia This is the largest coral reef. It it is visible from the space.
  • 3.
    • .
    • Corals grow in clean water with temperatures between 20 and 30 Cº.
    • They also need light.
    • A special type of algae live in association with corals: the zooxanthellae, which produce the different colours.
  • 4. RICH UNDERWATER LIFE A lot of species living in the coral reefs; 400 species of corals, 1800 different species of fish,125 of sharks and 5000 of molluscs.
  • 5. THE MESO-AMERICAN REEF It is the second largest coral reef in the world.
  • 6. CORAL BLEACHING
    • Coral bleaching is the whitening of corals due to the increase of temperature over prolonged periods of time and pollution.
    • Corals expel algae living with and lose all their colour and their ability of building more reefs.

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