Great Barrier Reef Flashcards
1
Q
What features are present?
A
Over 2900 reefs
900 islands
2
Q
Where is it located?
A
Coral sea off coast of Queensland, Australia
3
Q
What conditions do the reefs require?
A
Shallow waters Average temp. is above 18 degrees Saline water Wave action to oxygenate water High light levels for photosynthesis
4
Q
What kills the reefs?
A
Sediment flow smothers coral and kills it
Where there is river flow into sea off land as no wave action
5
Q
What do the reefs have a symbiotic relationship with?
A
Zooxanthellae algae
6
Q
What human actions affect the reefs?
A
Used for traditional crafts and medicine
Taken fish and shell fish from them to feed locals
Bring tourism and money
7
Q
What does the coastline do?
A
Gives protection as absorbs the wave power
8
Q
What role do the reefs have?
A
Marine research
Habitats & niches for many organisms
Tourism
Traditional crafts and medicines
