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Coral Reefs contribute a great amount of biodiversity to our seas down under.

Coral Reefs contribute a great amount of biodiversity to our seas down under.

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  • 1. Coral Reefs! 3/25/10 By:RobAn Williams
  • 2. No, not Christopher Reeve! Not to be confused with Chris Reeve… http://www.nirvanaclub.com/news/reeve.jpg
  • 3. Purpose
    • Coral reefs contain 25% of all ocean fish
    • Most destruction to coral reefs is manmade (some is caused by hurricanes and storms.)
      • More than a quarter of the earth’s coral reefs have been destroyed by humans.
  • 4. Organization
    • What are coral reefs
    • Organisms in reefs
    • Types of coral reefs
    • Coral reef biodiversity
    • Threats to coral reefs
    • Great Barrier Reef
    • Protection and Restoration
  • 5. What are coral Reefs?!
    • Coral is a stony substance that is made of the skeletons of certain kinds of tiny sea animals called polyps.
    • Polyps produce limestone at their base, which makes coral hollow and acts as a hiding place when predators come.
    • Vary in shape, size and color.
    • Need warm water, sunlight, and clear, shallow water to survive.
  • 6. Organisms in Reefs
    • Sponges, sea slugs, crustaceans, marine snails, sea stars, and fish.
    http://student.britannica.com/comptons/art/print?id=55468&articleTypeId=0
  • 7. Three Types of Coral Reefs…
    • Fringing Reefs : Border shorelines of continents and islands in tropical seas.
    • Barrier Reefs : Form when land masses sink, and fringing reefs separate from shorelines.
    • Atoll Reefs : Surround a central lagoon.
    http://oceanservice.noaa.gov/education/kits/corals/media/coral05a_480.jpg
  • 8. Coral Reef Biodiversity
    • Food source for coastal communities.
    • Sources of beach sand.
    • 1 million species of marine life make up its ecosystem.
    http:// www.eco-asia.info/content/sites/default/files/images/tr-wakatobi-underwater.jpg
  • 9. Threats
    • Overfishing
    http://www.grinningplanet.com/2005/06-07/fishing-cycle.gif
  • 10. Another Threat
    • Pollution
      • Enters through oil spills, acid rain, and hazardous waste, and exhaust from boats.
      • Kills reefs from poisons and heavy metals.
      • Enters the coral through polyps and kills them.
    http://www.epd.gov.hk/epd/english/envir_education/envir_explorer/images/explorer_4_01.gif
  • 11. … MORE THREATS!
    • Global Warming
      • Heat created by global warming evaporates water leaving coral reefs above the water’s surface.
      • Once coral reefs are above water they cannot breathe, and die.
    http://www.instablogsimages.com/images/2007/11/28/damaged-coral-reef_6697.jpg
  • 12. SO MANY THREATS!
    • Coral Bleaching
    • Ocean Acidification
    • Coral Mining
    • Threatened Species
      • Over 200 species (33%) are endangered .
      • 10 years ago only 2% were endangered.
      • Warmer sea temperatures lead to sudden sicknesses.
    http://pixdaus.com/single.php?id=29474
  • 13. Great Barrier Reef
    • Largest coral reef in the world.
    • Made up of 3,000 coral reefs and 900 islands (1616 miles).
    • Off the coast of Queensland, Australia.
    • Home of many species of birds, whales, fish, sea turtles, and stingrays.
    • Large tourist area for scuba divers.
    • Native home to the Black Marlin.
    http://www.dianibeach.co.uk/Black_Marlin.jpg
  • 14. Conclusion
    • Little ways to make a difference
      • Conserve water
      • Reduce pollution
      • Use organic fertilizers
      • Practice save diving
  • 15. MuLtIpLe ChOiCe QuEsTiOn
    • Which type of coral reef surrounds a central lagoon?
    • A) Fringing reef
    • B) Barrier reef
    • C) Atoll reef
  • 16. C) Atoll reef
  • 17. References
    • Walsh, Bryan. July 11, 2008. http://www.time.com/time/health/article/0,8599,1821971,00.html
    • Lad, Kashmira. July 1, 2008. http://www.buzzle.com/articles/facts-about-the-great-barrier-reef.html
    • The Nature Conservancy. http://www.nature.org/joinanddonate/rescuereef/explore/help.html
    • Protecting the Home We Live In. 2002. http://library.thinkquest.org/CR0215471/coral_reef.htm
    • United States Environmental Protection Agency. http://www.epa.gov/climatechange/effects/eco_coral.html
    • Sea World/Busch Gardens. 2002. http://www.seaworld.org/infobooks/coral/coralcr.html
    • Picture References
    • http://www.nirvanaclub.com/news/reeve.jpg
    • Britannica Student Encyclopedia. http://student.britannica.com/comptons/art/print?id=55468&articleTypeId=0
    • NOAA. March 25, 2008. http://oceanservice.noaa.gov/education/kits/corals/media/coral05a_480.jpg
    • EcoAsia. http://www.eco-asia.info/content/sites/default/files/images/tr-wakatobi-underwater.jpg
    • Grinning Planet. September 14, 2008. http://www.grinningplanet.com/2005/06-07/fishing-cycle.gif
    • Hong Kong Environmental Protection Department. http://www.epd.gov.hk/epd/english/envir_education/envir_explorer/images/explorer_4_01.gif
    • InstaBlogs. November 28, 2007. http://www.instablogsimages.com/images/2007/11/28/damaged-coral-reef_6697.jpg
    • Pixdaus. http://pixdaus.com/single.php?id=29474
    • Kenya Travel Guide. 2006. http://www.dianibeach.co.uk/Black_Marlin.jpg