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Coral Reefs and Sustainable Management
 

Coral Reefs and Sustainable Management

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    Coral Reefs and Sustainable Management Coral Reefs and Sustainable Management Presentation Transcript

    • The Biosphere: Coral Reefs
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      • Tropical latitudes
      • Warm water >24 Degrees C)
      • Lack of seasonality
      • Less developed nations
      • Nutrient-less (clear) water
      Where are coral reefs located?
      • Coral is really two organisms living together and helping each other
        • Zooxanthellae (algae) make oxygen and make food for the polyp from photosynthesis. They give coral its colour.
        • Coral polyps protect the zooxanthellae, release CO 2 , and provide it with necessary nutrients from their own waste. They build up the reef by producing limestone in their skeleton.
    • How Valuable Are Coral Reefs? Ecosystem goods (things that can be sold) and services (things that do a job) can be measured to show how valuable coral reefs are and help highlight why they should be protected.
    • Reefs are disappearing fast
      • 11 % of world’s coral reefs had been lost by 2000
      • 6% are in excellent condition
      • 24% are in good condition,
      • 70% are in poor to fair condition
      • 32 % reefs are in a critical stage or threatened
      1995 2005 32% 24% 11% 70% 6%
    • Reefs are disappearing fast
      • 11 % of world’s coral reefs had been lost by 2000
      • 6% are in excellent condition
      • 24% are in good condition,
      • 70% are in poor to fair condition
      • 32 % reefs are in a critical stage or threatened
      1995 2005
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      • http://www.youtube.com/watch?v=cbN161yBBGA fish market Hong Kong
      • http://www.youtube.com/watch?v=98ynSn_t3lM coral bleaching
      • http://www.youtube.com/watch?v=azmCKlmDMuo
      • Blast and cyanide fishing
      • http://www.youtube.com/watch?v=nIVvmZBpbew
      • Aquarium coral
    • Fishing
    • Blast Fishing
    • Building
    • Tourism
    • Aquarium Trade
    • Pollution
    • Bleaching
      • Causes of Coral Reef Degradation in Cebu
      • Poverty
      • Overfishing
      • Blast fishing
      • Cyanide fishing
      • Tourism resort growth
      • Pollution from farming
      • Aquarium trade
      • Effects of Coral reef degradation in Cebu
      • Over 70% of reefs already dead
      • Coral species declining- certain species cannot tolerate siltation from resort development.
      • Reef fish at critically low levels
      • Blast and cyanide fishing increasing due to low numbers of fish
    • Small Scale Management of A Coral Reef Ecosystem: Cebu Coral Farm, Philippines
      • The community-based 2 hectare coral farm is located in Cebu, Philippines. This farm was set up in 1997 with the following objectives:
      • to provide alternative livelihood for fisherfolk who engage in destructive fishing techniques
      • to increase coral biomass
      • to rehabilitate degraded reefs with low-cost technology
      • to strengthen the environmental awareness of the community
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      • 30 families are working in the farm.
      • Two reef sites have been improved with 6,000 farm-grown coral fragments.
      • These activities generate income for fisherfolk, maintenance of the farm and for community projects which benefit the entire village people.
      • The social impacts are excellent because the locals are abandoning destructive fishing gears (dynamite- and cyanide fishing), " Yesterday we were killing undersized reef fishes to feed our families, today we grow corals and improve our reefs " said Luceno Torriefel
      • Once reefs are healthy again, fisherfolk will be able to make money from fishing sustainably (only certain fish at certain times)
      • Currently, the coral farm has 266 Coral Nursery Units (CNU's) containing approx. 22,000 fragments ready for deployment. Export of farm-grown corals could be a further option for additional income of the fisherfolk and could even pay for reef rehabilitation in the Philippines, but the national laws ban any kind of coral trade.
    • Sustainability
      • Meeting the needs of today without messing up the needs of tomorrow
      • Why is this project sustainable?