Coral Reef Biome – Dylan Bruce, Period 3 The coral reefs of the world are generally found in, but are not exclusive to, the area between the Tropics of Cancer and Capricorn. Salinity – The average salinity levels of coral reefs are between 30 and 40 parts per million. Temperature – Coral reefs can survive from 19-32 degrees Celsius, with optimum growth between 23-25 degrees Celsius. Depth – Coral reefs can survive to as deep as 48 meters, as long as the waters are clear. Water flow – Water flow to coral reefs are caused from both ocean currents and rising and lowering of tides. Base of food chain – Algae, phytoplankton, seaweed Animals found – Sponges, zooplankton, varied fish The fore reef contains has the highest biodiversity of all of the zones, due to the variance in depth. The reef crest protects the reef flat from the powerful waves. The reef flat contains the shallow water habitats. Interesting info – Although the total coral reef sizes total to less than 0.1% of the size of the ocean, they support over 25% of all marine species. http://www.coralreefinfo.com/images/coralreef_map_large.jpg http://www.flmnh.ufl.edu/fish/southflorida/coral/habitat.html http://www.ehow.com/facts_5522719_food-coral-reef.html http://www.coral-reef-info.com/back-reef.html