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May 2012 TOP THREATS TO MARINE LIFE

Top Threats to Marine Life

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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 - PowerPoint PPT Presentation

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Page 1: Top Threats to Marine Life

May 2012

TOP THREATS TO MARINE LIFE

Page 2: Top Threats to Marine Life

OVERFISHING• What is it?

• What does it do?

• Tragedy of the Commons

• Bycatch

Page 3: Top Threats to Marine Life

IRRESPONSIBLE AQUACULTURE• What is it?

• Response to overfishing

• What’s wrong?

• What can we do?

Page 4: Top Threats to Marine Life

SHARK FINNING• What is it?

• Why?

• What happens?

• Apex Predator

• International Issue

• Banning in the USA

• What can we do?

Page 5: Top Threats to Marine Life

OCEAN ACIDIFICATION• How does it happen?

• What will happen next?

Page 6: Top Threats to Marine Life

CORAL REEF BLEACHING• Rainforests of the seas

• Benefits of coral reefs

• What’s happening?

• zooxanthellae

• Why?

• 4 basic needs

• What can we do?

Page 7: Top Threats to Marine Life

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

DEAD ZONES

Page 8: Top Threats to Marine Life

MERCURY POISONING• Three types

• Methylmercury

• How does it happen?

• What happens?

• What can we do

• Biomagnification & bioaccumulation

• Swordfish & Tuna

Page 9: Top Threats to Marine Life

POLLUTION & DEBRIS• 70-80%

• Great Pacific Garbage Patch

• North Atlantic Garbage Patch

• Yamuna River, India

• Rivers in China

Page 10: Top Threats to Marine Life

OIL SPILLS• Offshore drilling

• Plants

• Birds

• Marine mammals

• Fish

• Habitats

• Not just the BP Oil Spill

• Bodo, Nigeria

Page 11: Top Threats to Marine Life

• From:

• Illegal Aquarium trade

• Irresponsible aquarium owners

• Release of foreign bait

• Traveling Ships

• Displace native species

• Diminishes biodiversity

INVASIVE SPECIES

Page 12: Top Threats to Marine Life

NOW WHAT?• Awareness

• Making the right choices

• Supporting appropriate legislation

• Writing to newspapers and magazines

• Travel sustainably

• Volunteer

• Fundraise