1. Types of Reefs Atoll Reef- extends all around a lagoon without a central island Fringing Reef- directly attached to shore grow up to the edge of the shore Barrier Reef- separated from mainland by lagoon- only grow when there is a change of sea level on the coast adjacent from it

2. The Great Barrier Reef

4. Great Barrier Reef Located in the Coral Sea on the coast of Queensland (NE Australia)

5. Great Barrier Reef Largest Reef System in the world consisting of 2,900 individual reefs surrounding 900 islands Stretches 1,250 miles

6. Great Barrier Reef

7. Home to one of the most diverse collections of plants and animals on earth. Around 2,000 species of fish 350 different kinds of coral 4,000 mollusks

9. Cool Facts About Coral One of the oldest ecosystems on Earth Largest living structure on Earth Without coral reefs, parts of Florida would be underwater Have been used to treat cancer, cardiovascular diseases, and other illnesses

10. Cool Facts About Coral Their limestone skeletons have been used for human bone grafts 10% of the worlds reefs have been destroyed Home to 25% of all marine life Coral is found in about 100 countries

12. The importance of Coral Fishery and nursery area- important economically Provide a protective barrier from erosion to coastlines Tourist attractions Control the amount of carbon dioxide in the water

15. Destruction of the Reefs Pollution- poorly managed land development Fish Trade- over-fishing Dynamite Fishing- not only kills fish, but also coral

16. Destruction of the Reefs Coral Bleaching- caused by global warming- the high temperatures kills the coral. Ocean Acidification- the decrease in the ocean’s surface pH level, increases the amount of CO2 dissolved in the oceans

17. https://www.youtube.com/watch?v=wbNeI n3vVKMhttps://www.youtube.com/watch?v=wbNeI n3vVKM