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April 2012 TEN THREATS TO OCEAN HEALTH. GLOBAL CLIMATE CHANGE Sea levels rise Temperature rises Storms, floods, weather Current patterns Coral bleaching.

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Presentation on theme: "April 2012 TEN THREATS TO OCEAN HEALTH. GLOBAL CLIMATE CHANGE Sea levels rise Temperature rises Storms, floods, weather Current patterns Coral bleaching."— Presentation transcript:

1 April 2012 TEN THREATS TO OCEAN HEALTH

2 GLOBAL CLIMATE CHANGE Sea levels rise Temperature rises Storms, floods, weather Current patterns Coral bleaching

3 Caused by increasing man-made carbon dioxide emissions Makes the ocean more acidic Changes the chemistry of the sea and is harmful for many forms of marine life OCEAN ACIDIFICATION & CLIMATE CHANGE

4 Swaths of ocean that don't support life due to a lack of oxygen Growing at an alarming rate Over 400 known to exist Thought to be caused by global climate change and fertilizer/pesticide runoff DEAD ZONES

5 Over 80% of marine pollution comes from land-based activities Oil Spills Production waste Marine Debris GPGP Shipping POLLUTION

6 When the amount of fish caught is more than the amount of fish needed to sustain fish stocks in a given region Disrupts the food chain Bycatch – unintentional captures OVERFISHING

7 Supposed to respond to overfishing Poorly managed operations Nutrient and chemical pollution released into environment Accidental release of farmed fish is also damaging Unregulated IRRESPONSIBLE FISH FARMING

8 From: Illegal Aquarium trade Irresponsible aquarium owners Release of foreign bait Traveling Ships Displace native species Diminishes biodiversity INVASIVE SPECIES

9 Offshore drilling Chemicals like mercury, arsenic, and lead also come up with the oil Seismic waves used harm marine life Infrastructure erodes coastline Mangrove destruction Habitat loss 25% of all species may be extinct by 2050 Tourism RESOURCE EXTRACTION & COASTAL DEVELOPMENT

10 Affects everything 50-100 million killed each year Bycatch Hunted When finned sharks are thrown back still alive and bleed to death They reproduce too slowly for populations to recover SHARK FINNING/WHALING

11 Coal plants Ends up in the food we eat Already contaminated water in all 50 states Biomagnification Tuna MERCURY POISONING


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