Turbinaria stellulata
T. stellulata with polyps extended
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hexacorallia
Order: Scleractinia
Family: Dendrophylliidae
Genus: Turbinaria
Species:
T. stellulata
Binomial name
Turbinaria stellulata
(Lamarck, 1816) [2]
Synonyms[2]
List
  • Astraea stellulata Lamarck, 1816
  • Astrea stellulata Lamarck, 1816
  • Astreopora stellulata (Lamarck, 1816)
  • Turbinaria carinata Nemenzo, 1971
  • Turbinaria elegans Bernard, 1896
  • Turbinaria globularis Bernard, 1896
  • Turbinaria hemisphaerica Rehberg, 1892
  • Turbinaria mantonae Crossland, 1952
  • Turbinaria nitida Nemenzo, 1960
  • Turbinaria stephensoni Crossland, 1952
  • Turbinaria subversa Bernard, 1896
  • Turbinaria titizimaensis Yabe & Sugiyama, 1941

Turbinaria stellulata, also known as disc coral, is a species of colonial stony coral in the family Dendrophylliidae. It is native to the Indo-Pacific region. The International Union for Conservation of Nature has rated its conservation status as being "vulnerable".

Description

Turbinaria stellulata tends to be submassive with encrusting margins and does not produce vertical structures to any extent. The corallites are about 2 mm (0.08 in) in diameter and have thick walls. This coral is a zooxanthellate coral that houses symbiont dinoflagellates in its tissues. It is usually some shade of brown or green, but other colours sometimes occur, depending on which species of symbiont is present.[2][3] Colonies are dome-shaped and grow to a diameter of about 50 cm (20 in).[1]

Distribution and habitat

Turbinaria stellulata occurs in the Indo-Pacific region. Its range extends from the Red Sea and Madagascar to tropical Australia, southern Japan and the South China Sea. It occurs on upper reef slopes at depths from 2 to 15 metres (6 to 50 ft ), and unlike other corals in its genus Turbinaria, it seems to avoid turbid water.[1]

Biology

As a zooxanthellate coral, Turbinaria stellulata gets part of its nutritional needs from the photosynthetic symbionts in its tissues, but also extends its polyps to feed, mostly at night. Colonies are either male or female and are broadcast spawners. All the colonies in an area liberate their eggs and sperm into the sea in a spawning event which is synchronised with the phases of the moon. The planula larvae that develop form part of the plankton and eventually settle in a suitable location on the seabed.[3]

Status

In general, the threats that stony corals face include global climate change with the resulting rise in the temperature of sea water, ocean acidification, increased severity of storms which damage reefs, increased frequency of El Niño events, coral bleaching and the increasing incidence of coral diseases. The population trend of Turbinaria stellulata has not been monitored but as a shallow water coral it is affected by these factors. It has a wide range but is an uncommon species and the International Union for Conservation of Nature has assessed its conservation status as being "vulnerable".[1]

References

  1. 1 2 3 4 Hoeksema, B.W.; Rogers, A.; Quibilan, M.C. (2014). "Turbinaria stellulata". IUCN Red List of Threatened Species. 2014: e.T133403A54253005. doi:10.2305/IUCN.UK.2014-1.RLTS.T133403A54253005.en. Retrieved 20 November 2021.
  2. 1 2 3 Hoeksema, B. (2015). "Turbinaria stellulata (Lamarck, 1816)". WoRMS. World Register of Marine Species. Retrieved 2015-04-19.
  3. 1 2 "Turbinaria coral (Turbinaria stellulata)". EDGE of Existence programme. Retrieved 2015-04-20.
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