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Sharks!

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Sharks! Great White Shark Anatomy Caudal fin: used for turning and propelling forward Dorsal fin: on a shark s back is used for balance. The second dorsal fin ... – PowerPoint PPT presentation

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Title: Sharks!


1
Sharks!
2
Great White Shark Anatomy
  • Caudal fin used for turning and propelling
    forward
  • Dorsal fin on a sharks back is used for
    balance. The second dorsal fin controls rolling.
  • Pectoral Fin control whether a shark swims up or
    down. Sharks cannot swim backwards
  • Pelvic fin provide stability
  • Anal Fin Provide extra stability

3
(No Transcript)
4
Shark Finning
  • Shark is pulled on board a ship, its fins are cut
    off while the shark is still living then tossed
    back overboard to drown or bleed to death.
  • Shark fins have no nutritional or medical value
  • Shark fins are a delicacy in China
  • 40 million sharks are killed this way each year

5
Impact of Shark Finning
  • Loss of shark population around the world.
  • Wasteful up to 99 of the shark is thrown away.
  • Each country with a coastline is responsible for
    laws and regulations pertaining to fishing in
    their waters.

6
Video Shark Finninghttp//planetgreen.discovery.
com/videos/planet-100-shark-finning-explained.html
7
Porbeagle Shark
  • Endangered due to overfishing.
  • Found in northern Newfoundland into the Gulf of
    St. Lawrence
  • Biggest step taken in prevention of extinction is
    fishing quotas

8
Conservation of sharks in Canada
  • All recreational fishing for sharks is restricted
    to catch and live release.
  • All commercial shark fishing quotas are set at
    levels which maintain or increase population
    numbers at healthy levels.
  • Sharks caught accidentally in fisheries targeting
    other species are to be released alive, if they
    are not landed.
  • The mating ground of porbeagle sharks has been
    closed to commercial fishing to encourage
    population recovery.
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