coral reefs by mackenzie
TRANSCRIPT
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Coral reefs
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What are coral reefs and where are they found?
• Coral reefs are diverse underwater ecosystems and are built by colonies of tiny animals and stony corals.
• Coral reefs can be found in three of the earths oceans that contain part of the tropics.
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What are the three main threats to coral reef eco systems?
• Fishermen put cyanide in the coral reefs to poison fish and catch them.
• Sewage promotes the growth of algae which harms coral reefs.
• Boats dropping anchors can severely damage reefs.
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What does a coral reef food web look like?
• A coral reef food web looks like this: