Figure 3.7: (Image from space) The Great Barrier Reef offshore of northeastern Australia (barrier reef shows up as the white trend located offshore of the coastline). The Great Barrier Reef is constructed primarily from calcium carbonate secreted by corals that build a structure above the surrounding substrate to remain in the photic zone below water. The reefs build vertically into the photic zones so that algae, which are symbiotic with the coral polyps, can complete photosynthesis.
Originally uploaded in Integrate:Teaching for Sustainability:InTeGrate Modules:Coastal Processes, Hazards and Society:Student Materials.
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Sep7 16