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Coral Reefs

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Coral Reefs. Australia’s Great Barrier Reef. Where they’re Located. Where they’re Located. In tropical oceans near the equator Western part of the Atlantic, Pacific, and Indian ocean basins

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Coral Reefs

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  1. Coral Reefs

  2. Australia’s Great Barrier Reef Where they’re Located

  3. Where they’re Located • In tropical oceans near the equator • Western part of the Atlantic, Pacific, and Indian ocean basins • Largest area is the Indo-Pacific Region (much of the Central and South Pacific Ocean from Hawaii to Japan)

  4. Physical Characteristics • 17-34 degrees Celsius • 30-38 parts per million salinity • Only about 200 feet down because of the need for sunlight for photosynthesis.

  5. The Base of the Food Web • The base consists of all the producers: • Phytoplankton • Coralline algae • Calcareous algae • Zooxanthellae • Filamentous turf algae • Various seaweed species

  6. Examples of Animals • Sponges • Sea cucumbers • Shrimps • Crabs • Clams • Snails • Sea turtles • Sting rays • Eels • Angelfish • Octopi • Sharks

  7. Zones of Coral Reefs • Back Reef • Extends from the shore to the edge of the reef crest • Contains patch reefs, sand plains, seagrass meadows, and mangrove forests • Reef Crest • The narrow zone between the back reef and reef face • Absorbs the incoming waves and contains currents • Includes corals, algae, and sponges • Reef Face • Begins at the edge of the reef crest and slopes downward • Contains the greatest mass and diversity of hard corals, and is home to the greatest number of fish species • This is the area where people tend to scuba dive

  8. The Different Zones

  9. Interesting Facts • Coral reefs have been forming for over the last 25 million years • These reefs only cover 0.2% of the ocean’s bottom • However, they contain more than 25% of all marine life

  10. Resources • http://www.coral-reef-info.com/coral-reef-biome.html • http://www.seaworld.org/animal-info/info-books/coral/reef-ecosystem.htm • http://www.cotf.edu/ete/modules/coralreef/CRcoralreefs.html • http://www.coralscience.org/articles/PDF/Coral%20reef%20ecology.pdf

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