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Marine Ecosystems

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deep fore reef. wall. Reef Zonation -based on Jamaican reefs. shore zone. lagoon. back reef ... deep fore reef. wall. Reef Builders. Corals. Coralline algae ... – PowerPoint PPT presentation

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Title: Marine Ecosystems


1
Marine Ecosystems Coral Reefs
2
Coral Reefs - Worldwide Distribution
3
Coral Reefs - Worldwide Distribution
20º isotherm
4
Major Reef Builders Corals
Coralline algae
5
Reef Types
a. Atolls
6
Reef Types
a. Atolls
7
Reef Types
b. Fringing reefs
8
Reef Types
b. Fringing reefs
9
Reef Types
c. Barrier reefs
10
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
11
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
12
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
13
Reef Zonation -based on Jamaican reefs
back reef
shore zone
reef crest
lagoon
fore reef
buttress zone
deep fore reef
wall
14
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
15
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
16
Reef Zonation -based on Jamaican reefs
back reef
shore zone
lagoon
reef crest
fore reef
buttress zone
deep fore reef
wall
17
Reef Builders
Corals
Coralline algae
18
Reef Destroyers
a. Physical
19
Reef Destroyers
b. Biological
20
Reef Destroyers
b. Biological
21
Corals - add CaCO3 framework
Borers weaken coral (destroyers)
Physical destruction
Physical conditions kill coral
Dead corals, rubble
Finer sediment
Sand channels in buttresses
Consolidate into solid mass (submarine
lithification)
Deep layers
Base for further reef growth
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