Natural effects

Question 1

How was sea grass in Northern Sumatra affected by the tsunami? What did this causes?

Answer 1

hundreds of square kilometers were destroyed which is a major source of food for dugongs

Question 2

How far inland did the tsunami strip vegetation in Sumatra?

Answer 2

Up to 800 meters inland

Question 3

How did the tsunami damage coral reefs?

Answer 3

• In northern sumatra, 30% of coral reefs were destroyed
• In phuket 5% of coral reefs were destroyed
• In Banda Aceh chunks of coral reef up to 1 tonne were broken off and thrown onto the beach

Question 4

How much of the mangroves in northern sumatra got destroyed?

Answer 4

60,000 acres of mangroves were destroyed

Question 5

What are some examples of animals being swept into shore by the tsunami?

Answer 5

In thailand, dolphins were swept 500 meters into shore, many sea turtles were killed or injured as they were stuck on mainland

Question 6

What species were affected by the mangrove, coral and sea grass damage?

Answer 6

Mangrove - Mangrove Crab
Coral - Napoleon Wrasse, giant clams
Seagrass - dugongs