OCN 201 Biology Lecture 11 Coral Reefs • Zoantharia/Hexacorallia (multiples of 6 tentacles, solitary or colonial) - stony corals (reef building), black coral, white coral, zoanthids, anemones • Octocorals (8 tentacles, almost always colonial) - Gorgonians, Soft corals, Blue coral Corals - Main reef builders sponges & coralline macroalgae also can be important reef builders & space occupiers
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OCN 201 Biology Lecture 11
Coral Reefs
• Zoantharia/Hexacorallia (multiples of 6 tentacles, solitary or colonial)- stony corals (reef building), black coral,
white coral, zoanthids, anemones
• Octocorals (8 tentacles, almost always colonial)
- Gorgonians, Soft corals, Blue coral
Corals - Main reef builders
sponges & coralline macroalgae also can be important reef builders & space occupiers
Octocorals HexacoralsGorgonia Soft Coral
Black CoralStony Corals
Reef-Building Coral Polyp
Have symbiotic zooxanthellae(photosynthetic dinoflagellates)