Scleractinia

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Related to Hard coral: Soft coral

Scleractinia

[‚skler·ək′tin·ē·ə]
(invertebrate zoology)
An order of the subclass Zoantharia which comprises the true, or stony, corals; these are solitary or colonial anthozoans which attach to a firm substrate.
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We focus on hard corals for they literally form the backbone of the world's reefs," said Reef Check trainer Eznairah-Jeung Narida.
He said while there was a return of hard coral cover at some reefs, major disturbances?such as crown-of-thorns starfish?outbreaks, cyclones, and?coral?bleaching events in the past five years had caused a general decline in coral cover across much of the 2300km reef system, which runs along Australias East coast.?
Effects of high dissolved inorganic and organic carbon availability on the physiology of the hard coral Acropora millepora from the Great Barrier Reef.
4) Mixed communities containing diverse and seasonal brown macro-algae populations and sparse but numerous colonies of poritid and faviid hard corals
It is also home to coral reef and identified as a hotspot of coral, with more than 30 species of hard coral and eight species of soft coral identified here.
Boat anchors and uncaring visitors stepping on hard coral destroy reefs.
To eat the hard coral, the starfish has an extrudable stomach that wraps around the coral and ingests it.
Two dives will be conducted each day at the Al Dhabiyah shore where the depth is about ten metres in the hard coral areas.
coerulea is its blue, hard, crystalline aragonite skeleton, because Heliopora is more closely related to soft coral species (Octocorallia) than to hard coral species (Hexacorallia).
Cameron, "Larvotoxic extracts of the hard coral Goniopora tenuidens: allelochemicals that limit settlement of potential competitors?" Toxicon, vol.
A total of 41 hard coral species were found at the sampled sites and coral cover varied from 42.2 to 1.5 % (Appendix 4a) and the species number varied from six to twenty five.