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Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
Shark Species In Coral Reefs   Brandon Roy
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Shark Species In Coral Reefs Brandon Roy


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  • 1. Shark Species in Coral Reefs By: Brandon Roy
  • 2. Reef sharks (identification and classification ) <ul><li>Phylum: Chordata </li></ul><ul><li>Class: Chrondrichthyes </li></ul><ul><li>Diet : reef fish, lobster, cuttlefish, crabs, </li></ul><ul><li>Common sharks found in reefs </li></ul><ul><ul><li>Black-tip reef shark </li></ul></ul><ul><ul><li>White-tip reef shark </li></ul></ul><ul><ul><li>Caribbean reef shark </li></ul></ul><ul><ul><li>Grey nurse shark </li></ul></ul><ul><ul><li>Whale shark </li></ul></ul>
  • 3. Reef sharks cont. <ul><li>Black-tip reef sharks have been found off the coast of Key West. </li></ul><ul><li>Tip of their dorsal fin is black, they have a brown body and can be up to 6 feet long. </li></ul><ul><li>They are one of the few sharks species who can jump completely out of the water. </li></ul><ul><li>White-tip reef shark have a white spot on the top of their dorsal fin with a grayish brown body(140-160 inches). </li></ul><ul><li>This species of shark is nocturnal and hunt in packs </li></ul>
  • 4. Unique characteristics of sharks <ul><li>A tiger shark( grey nurse shark) can smell 1 drop of blood in an Olympic sized swimming pool </li></ul><ul><li>Whale shark is the largest fish in the world and can grow more than 15 ft long and live in coral reefs </li></ul><ul><li>All sharks have lateral lines down their body and face along with 2 spiracles behind their eyes that act as ears and detect vibrations in the water. </li></ul><ul><li>A sharks body is mostly composed of cartilage. </li></ul><ul><li>Most sharks eat 1-10% of their own body weight weekly. </li></ul>
  • 5. Why are reefs good homes for sharks? <ul><li>The temperature rarely drops below 70 ° Fahrenheit, this temp is perfect for the cold blooded sharks. </li></ul><ul><li>Coral reefs are also home to over 500 species of fish that these sharks prey on. </li></ul><ul><li>The coral also provides shelter and protection from other sharks and fishing tourist. </li></ul><ul><li>The reefs also have very low levels of toxins in the water which is good for the reef sharks. </li></ul><ul><li>The constant changes in tide provide a very rich marine environment for the sharks </li></ul><ul><li>Estimates say that coral reefs contain up to 1/3 of the world’s population of fish. </li></ul>
  • 6. Threats to sharks in reefs <ul><li>Over fishing – tourism and commercial fishing of sharks </li></ul><ul><ul><li>Fins (shark fin soup) </li></ul></ul><ul><ul><li>Oils (Shark liver oil) </li></ul></ul><ul><li>Sharks have slow reproduction so over fishing is hazardous </li></ul><ul><li>Oils from the liver are used for medical remedies (pains, sores, irritations) </li></ul><ul><li>The deterioration of coral reefs along with coral bleaching kills fish that sharks prey on </li></ul><ul><li>The fish trade is killing sharks to supply the demands of Chinese food industries </li></ul>
  • 7. Conservation of Reef Sharks <ul><li>As mentioned in the previous slide, sharks are subject to over fishing. The IUCN, at one point, was responsible for banning all shark fishing in Australia. </li></ul><ul><ul><li>After noticing that the number of sharks increased dramatically, the bans where lifted </li></ul></ul><ul><li>Scientist are trying to come up with a way to improve the rate at which sharks reproduce. </li></ul><ul><li>Now the CITES are trying to ban fishing of tropical marine animals, in hopes of keeping some shark species from becoming endangered. </li></ul><ul><li>The CITES are also pushing to restrict the tourist fishing of certain shark species. </li></ul>
  • 8. Credits <ul><li>Photos from </li></ul><ul><ul><li> </li></ul></ul>