Elegance Coral
Catalaphyllia jardinei
Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Catalaphyllia
Overview
The elegance coral is a large-polyped stony coral in the family Merulinidae, recognized by its fleshy, tentacle-covered polyps that extend from a calcified skeleton, often displaying green, brown, or cream coloration with contrasting tentacle tips. Like other reef-building corals, it hosts symbiotic zooxanthellae algae within its tissues, which provide the majority of its energy through photosynthesis while the coral itself captures plankton with its tentacles at night. As a colonial reef-builder, it contributes structural complexity to reef ecosystems, offering shelter and habitat for numerous invertebrate and fish species.
This species occupies shallow, sheltered lagoon and reef environments across the Indo-Pacific, with a range spanning Australia, Indonesia, Papua New Guinea, the Philippines, Japan, Taiwan, Malaysia, Thailand, Fiji, New Caledonia, Palau, Micronesia, the Maldives, Seychelles, Kenya, Mayotte, and several other nations.
The species is classified as Vulnerable, with population trends currently unknown. Rising sea temperatures drive coral bleaching by disrupting the coral-algae symbiosis, while ocean acidification impairs skeletal calcification. Sedimentation and pollution from coastal development and agricultural runoff degrade water quality and light availability.
Additionally, this species is heavily targeted for the marine aquarium trade due to its striking appearance, adding direct extraction pressure beyond typical reef threats.
Conservation efforts include international trade regulation, marine protected areas across parts of its range, and restrictions on wild collection in some jurisdictions in favor of aquaculture-propagated specimens. Reef monitoring programs continue to track bleaching events and habitat condition throughout its range.
Its outlook remains uncertain, contingent on the trajectory of ocean warming, effectiveness of trade controls, and regional habitat protection measures.
Elegance Coral faces multiple ongoing dangers: rising ocean temperatures are causing corals to bleach and die, while increasingly acidic seawater makes it harder for them to build their skeletons. At the same time, people collecting these corals for home aquariums, coastal construction projects stirring up sediment that smothers them, and runoff from farms polluting their waters are all adding further stress. Since all five threats remain active with no signs of easing, the overall danger to this species appears to be intensifying rather than stable or improving.
Habitat
Wonder coral inhabits shallow coral reefs and lagoons in the Indo-Pacific, typically found at depths of 5-40 meters on sandy substrates or reef slopes. It requires clear, warm waters with moderate to strong currents that provide adequate water flow for feeding and waste removal.
Other threatened species in Merulinidae
Threatened in Australia
Frequently asked questions
Why is Elegance Coral classified as Vulnerable?
Where does Elegance Coral live?
What are the main threats to Elegance Coral?
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