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Overfishing

Overfishing. Group #: (Presenters names). Why is overfishing a problem?. No time for recovery Fish populations collapsing  Supply limited . (Koster, 2007). Data About Extent of Problem. U.S. seafood trade deficit = $8 billion discard rate in U.S. = 21.7%

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Overfishing

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  1. Overfishing Group #: (Presenters names)

  2. Why is overfishing a problem? • No time for recovery • Fish populations collapsing  • Supply limited  (Koster, 2007)

  3. Data About Extent of Problem • U.S. seafood trade deficit = $8 billion • discard rate in U.S. = 21.7% • 70% of fish caught beyond capacity 

  4. Cause of Overfishing  • mainly over-exploitation  (Jeantheau, 2005)

  5. Low growth rates  Severe biomass levels Changes in species composition & biodiversity  Extreme changes to the ocean:        1. Degradation of reefs        2. Destruction to bottom grasses Impact on Environment

  6. Impact on Human Health • Prevents heart disease and strokes • Poverty countries depend on fish • Omega-3 fatty acids • Overfishing = all of the above gone

  7. Impact on Economy • Industry earns $50 billion per year • Huge industry; must be maintained As technology improves, we fish more. Fish population goes down, less revenue.  Prices rise and technology is developed to meet demand.

  8. Data on Impact • coral reefs being destroyed  • population decreasing • fish prices increase 

  9. Strategies for Addressing the Problem • Promote fish farming • Allow recovery-rotating fishing grounds • Passing laws addressing issue (Miller & Levine, 2003)

  10. Citations  Jeantheau, M. (2005, May). Pretty Mermaids are Always Over Fishing for Compliments: The Causes and Effects of Overfishing. Retrieved October 25, 2010 from http://www.grinningplanet.com/2005/06 07/ overfishing-article.htm Koster, P. (2007, March 22). Why is overfishing a problem? Retrieved October, 19, 2010 from http://overfishing.org/pages/why_is_overfishing_a_problem.php Miller, K. R., & Levine, J. S. (2003). Biology: New York State. Upper Saddle River, NJ: Prentice Hall.  Impacts of fishery activities. (2010, May 27). Food and Agriculture Organization of the United Nations. Retrieved October 20, 2010 from http://www.fao.org/fishery/topic/12273/en Planet Earth: Overfishing. (2010). In Green Earth for DFW Environmentalists. Retrieved October 20, 2010 from http://www.dfwnetmall.com/earth/over -fishing.htm

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