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Shark Attacks: A Media Hype or a Management Concern? Doug Piatkowski. Apex Predators. Essential for balance of aquatic food chain Acute predatory senses Efficient Predators - PowerPoint PPT Presentation
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Apex Predators
Essential for balance of aquatic food chain
Acute predatory senses Efficient Predators
- Ampullae of Lorenzini, Smell (detect blood – 1 part per million), Sound (600 yards away), Lateral Line (vibration sensitive hair cells)
Jaws
- Upper jaw slides forward and lower jaw drops
- Pressure of 2,000 lbs. per sq. in.
Problems
Populations declined up to 80% since 70’s
Hunted for sport and commercially
International trade of shark fins “Shark Fin Soup”
- Global trade of shark fins - >7,000 tons of fins/year
Souvenirs – jaws and teeth
Slow Growth, late maturity, and low reproductive potential
Human Fear – lack of compassion and protection
Recent Attacks
July 6, 2001
-Jessie Arbogast
-Horrifying attack by a Bull Shark
-Biggest media hyped shark attack since 1916
-Fueled the “Summer of the Shark”
-News headlines, Dateline, and Time magazine cover story
Media Hype Fear - Decrease in coastal tourism
30 times more likely to get struck by lightning
Summer 2000 - 3 shark attacks in Wrightsville Beach, NC
Summer 2001 – 0 shark attacks!
Management Issues
Efforts to create a sense of “control” and promote tourism
Shark “task force”
- ‘Prevent’ future attacks and “make our waters safer”
Education – pamphlets, new articles…
Ban Shark Feeding – “Pavlovian” situation
SharkPOD’s – Electric shark repellent
Shark Fencing