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Top Threats to Marine Life

Top Threats to Marine Life. May 2012. Overfishing. What is it? What does it do? Tragedy of the Commons Bycatch. Irresponsible Aquaculture. What is it? Response to overfishing What’s wrong? What can we do? . Shark Finning. What is it? Why? What happens? Apex Predator

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Top Threats to Marine Life

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  1. Top Threats to Marine Life May 2012

  2. Overfishing • What is it? • What does it do? • Tragedy of the Commons • Bycatch

  3. Irresponsible Aquaculture • What is it? • Response to overfishing • What’s wrong? • What can we do?

  4. Shark Finning • What is it? • Why? • What happens? • Apex Predator • International Issue • Banning in the USA • What can we do?

  5. Ocean Acidification • How does it happen? • What will happen next?

  6. Coral Reef Bleaching • Rainforests of the seas • Benefits of coral reefs • What’s happening? • zooxanthellae • Why? • 4 basic needs • What can we do?

  7. Dead Zones Dead Zones • 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

  8. Mercury Poisoning • Three types • Methylmercury • How does it happen? • What happens? • What can we do • Biomagnification & bioaccumulation • Swordfish & Tuna

  9. Pollution & Debris • 70-80% • Great Pacific Garbage Patch • North Atlantic Garbage Patch • Yamuna River, India • Rivers in China

  10. Oil Spills • Offshore drilling • Plants • Birds • Marine mammals • Fish • Habitats • Not just the BP Oil Spill • Bodo, Nigeria

  11. Invasive Species • From: • Illegal Aquarium trade • Irresponsible aquarium owners • Release of foreign bait • Traveling Ships • Displace native species • Diminishes biodiversity

  12. Now What? • Awareness • Making the right choices • Supporting appropriate legislation • Writing to newspapers and magazines • Travel sustainably • Volunteer • Fundraise

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