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The Great Barrior Reef

Elizabeth Strawn

Crown of Thorns Starfish

  • The Crown-of-Thorns Starfish is a coral reef predator which preys on coral polyps by climbing onto them, extruding its stomach over them, and releasing digestive enzymes to absorb the liquefied tissue
  • Large outbreaks of these starfish can devastate reefs.

The Biggest Coral Reef in the world

  • composed of over 2,900 individual reefs and 900 islands
  • The reef is located in the Coral Sea, off the coast of Queensland, Australia.
  • One of the 7 wonders of the world
  • can be seen from outerspace

Environmental Threats

  • Climate Change
  • Crown of Thorns Starfish
  • Overfishing
  • pollution
  • dumping

Ecology

  • The Great Barrier Reef supports a diversity of life, including many vulnerable or endangered species
  • Home to thirty species of whales, dolphins, and porpoises
  • home to six species of sea turtles
  • more than 1500 species of fish

Climate Change

  • the most significant threat to the status of the Great Barrier Reef is climate change, due to the consequential rise of sea temperatures, gradual ocean acidification and an increase in the number of "intense weather events".
  • a temperature rise of between two and three degrees Celsius would result in 97% of the Great Barrier Reef being bleached every year

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