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Coral Reefs. Coral reefs. Coral reefs. One of the most biological diverse and productive ecosystem Found in warm, clear and shallow tropical oceans On CaCO 3 substrate deposited by reef building corals (50% of all Ca deposit in the sea) and other calcified organisms.

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coral reefs2
Coral reefs
  • One of the most biological diverse and productive ecosystem
  • Found in warm, clear and shallow tropical oceans
  • On CaCO3 substrate deposited by reef building corals (50% of all Ca deposit in the sea) and other calcified organisms.
  • Provide shelters and food to fish
types of reefs
Types of reefs
  • Fringe, barrier, vs. atolls
brain corals
Brain corals

With extended polyps

mutualism between clown fish and sea anemone
Mutualism between clown fish and sea anemone
  • Clown fish is coated with the same mucous as anemone.
  • Fish brings food.
  • Anemone protect fish.
why is diversity so high in coral reefs and rain forest
Why is diversity so high in coral reefs and rain forest?
  • On nutrient poor water
  • High level of mutualism and symbiosis
  • High productivity and high rates of nutrient cycling
  • Fine division of niches
  • Control by herbivores and competitions?
limestone outcrops in s florida 10 000 yr old land rich in endemic ca loving herbaceous plants
Limestone outcrops in S. Florida: >10,000 yr old land rich in endemic Ca-loving herbaceous plants
  • Miami rock ridge & lower keys: Oolitic limestone, precipitated in sallow sea
  • Upper keys: coral origin
florida marsh distribution
Florida marsh distribution
  • North: sink hole origin and untable.
  • Kissimmee river basin: where the land sagged slightly from dissolution of underlying limestone.
  • Lake Okeechobee: water dammed by the sedimentation in the southern rim.
  • Northern Everglades: river of grass, following the gradual elevational gradient to SW.
  • Southern Everglades: freshwater lens pushed up by the saltwater underneath.