Lesson 2: Wonders of coral Become an ocean explorer (ages 11-14)
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Transcript of Lesson 2: Wonders of coral Become an ocean explorer (ages 11-14)
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Lesson 2:Wonders of coral
Become an ocean explorer (ages 11-14)
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There are a lot of different scales on the coral reef…These tiny algae live
inside the coral tissue providing energy. They measure just a few m or microns across.Compare that to the entire Great Barrier Reef stretching 2,300km along the coast of Australia.
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Reef mosaic
Coral reef Habitat zone
Habitat patch
Coral colony
Coral branch
Coral polyp Algae (zooxanthellae)
Coral reef scales from largest (1) – smallest (8)
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There are different habitat zones on the reef. These are areas that have different environmental conditions.
Wave strength
Exposure at low tide
Amount of sunlight
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There are different habitat zones on the reef. These are areas that have different environmental conditions.
Wave strength
Exposure at low tide
Amount of sunlight
Encrusting coral is suited to the reef crest because it is resistant to the power of the waves.
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How did you place the corals on your diagram? Can you give reasons for where you put them?
Wave strength
Exposure at low tide
Amount of sunlight
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Dive 2 – Wonders of coral
- We are going on a 15 minute dive around Opal Reef
- Your mission is to complete two coral surveys, identifying the different types that you can see
- Before your dive we are going to practise coral identification
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Surv
ey S
ite 1
–
Opal R
eef
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Surv
ey S
ite 2
–
Opal R
eef
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Surv
ey S
ite 1
–
Opal R
eef
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Surv
ey S
ite 2
–
Opal R
eef
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Dive 2 log
- Complete your dive log- How are coral ecosystems varied?
- Remember to get your log signed by your buddy and dive master
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Slide Photo Credit2, 3 Zooxanthellae Emma Kennedy (University of Exeter)2 Map Google3 Reef mosaic NASA3 Coral reef NASA3 Coral polyp OIST4, 5 Reef skectch Digital Explorer
All other images and photos Catlin Seaview Survey
Photo credits