Hermatypic coral

Hermatypic corals are those corals in the order Scleractinia which build reefs by depositing hard calcareous material for their skeletons, forming the stony framework of the reef. Corals that do not contribute to coral reef development are referred to as ahermatypic (non-reef-building) species.

Many reef-forming corals contain symbiotic photosynthetic zooxanthellae, which contribute to their nutritional needs. The term "hermatypic" is sometimes misused, being assumed to apply to all zooxanthellate corals. However, there are zooxanthellae in many non reef-forming corals; and not all hermatypic corals in shallow water contain zooxanthellae. Further, some hermatypic corals live at depths to which light cannot penetrate; they form deep-water reefs but do not harbour the symbionts.[1]

References

Schuhmacher, H., Zibrowius, H. (2006). "What is hermatypic?". Coral Reefs. 4: 1–9. doi:10.1007/BF00302198.CS1 maint: multiple names: authors list (link)

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[1] Schuhmacher, H., Zibrowius, H. (2006). "What is hermatypic?". Coral Reefs. 4: 1–9. doi:10.1007/BF00302198.CS1 maint: multiple names: authors list (link)

Corals and coral reefs
Stony corals	Blue Brain Elegance Elkhorn Hermatypic Chalice Pillar Staghorn Table
Soft corals	Bamboo Black Organ pipe Sea fans Sea pens
Coral reefs	Atoll Cay Coral Fringing Microatoll Coral reef fish Census of Coral Reefs The Structure and Distribution of Coral Reefs Catlin Seaview Survey Spur and groove formation
Coral regions	List of reefs Deep-water coral African coral reefs Amazon Reef Andros, Bahamas Belize Barrier Reef Coral Sea Islands Coral Triangle East African coral coast Florida Keys National Marine Sanctuary Great Barrier Reef Maldives Mesoamerican Barrier Reef System New Caledonia barrier reef Pulley Ridge Raja Ampat Islands Red Sea Solomon Archipelago Southeast Asian coral reefs
Coral diseases	Coral bleaching Black band disease Skeletal eroding band Stony coral tissue loss disease White band disease White pox disease
Protection	Coral Reef Alliance Coral reef protection Green Fins International Coral Reef Society Project AWARE Reef Check Reef Ball
Symbiotic algae	Zooxanthellae Amphidinium Symbiodinium
Other	Artificial reef Aquaculture of coral Coral dermatitis Precious coral Coral in non-tropical regions Coral rag Coral reef organizations Coral sand Coralline algae Environmental issues with coral reefs Fire coral Reef resilience Rugosa (extinct) Tabulata