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Paragoniastrea australensis

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Paragoniastrea australensis
From the Eritrean coast of the Red Sea
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hexacorallia
Order: Scleractinia
Family: Merulinidae
Genus: Paragoniastrea
Species:
P. australensis
Binomial name
Paragoniastrea australensis
(Milne-Edwards & Haime, 1857) [2]
Synonyms
List
  • Coeloria australensis Milne Edwards, 1857
  • Goniastrea australensis (Milne Edwards, 1857)
  • Goniastrea benhami Vaughan, 1917
  • Prionastraea australensis Milne Edwards, 1857

Paragoniastrea australensis, also known as the lesser star coral, is a species of stony corals in the family Merulinidae.[3][4] It occurs in shallow water in the Indo-Pacific region.

Description

Colonies of Paragoniastrea australensis can be massive, submassive or encrusting. The corallites are arranged in deep valleys with steep walls. The valleys are meandroid and may be short or long, depending on the habitat in which the coral grows. The septa are even and regularly spaced and extend over the valley walls into the next valley. They are finely toothed and have paliform lobes, and the columella are large. This coral is quite variable in colour, most often being some shade of green or brown, with the valley floor often contrasting with the rest of the surface.[5]

Distribution and habitat

This widespread and common species can be found in shallow or clear waters in the Indo-West Pacific (Red Sea, Gulf of Aden, Indian Ocean, Australia, Southeast Asia, Japan and China Sea).[6]

Biology

Paragoniastrea australensis is a zooxanthellate species of coral.[2] It obtains most of its nutritional needs from the symbiotic dinoflagellates that live within its soft tissues, supplementing this with the planktonic organisms caught by the polyps.[7]

Status

This coral is a common species with a wide range and large total population size which makes it more resilient than some other species of coral. The main threats faced by corals are related to the mechanical destruction of their coral reef habitats and climate change; these include increasing damage from extreme weather events, rising sea water temperatures and ocean acidification. The International Union for Conservation of Nature has assessed the conservation status of this species as being of "least concern". All corals receive protection by being listed on CITES Appendix II.[1]

References

  1. ^ a b DeVantier, L.; Hodgson, G.; Huang, D.; Johan, O.; Licuanan, A.; Obura, D.O.; Sheppard, C.; Syahrir, M.; Turak, E. (2014). "Goniastrea australensis". IUCN Red List of Threatened Species. 2014: e.T132883A54154226. doi:10.2305/IUCN.UK.2014-1.RLTS.T132883A54154226.en.
  2. ^ a b Hoeksema, Bert (2018). "Paragoniastrea australensis (Milne Edwards, 1857)". WoRMS. World Register of Marine Species. Retrieved 2018-08-09.
  3. ^ Biolib
  4. ^ Catalogue of life
  5. ^ 台灣石珊瑚誌. 國立臺灣大學出版中心. 2009. p. 109. ISBN 978-986-01-8745-8.
  6. ^ DeVantier, L.; Hodgson, G.; Huang, D.; Johan, O.; Licuanan, A.; Obura, D.O.; Sheppard, C.; Syahrir, M.; Turak, E. (2014). "Goniastrea australensis". IUCN Red List of Threatened Species. 2014: e.T132883A54154226. doi:10.2305/IUCN.UK.2014-1.RLTS.T132883A54154226.en. Retrieved 11 November 2021.
  7. ^ Ruppert, Edward E.; Fox, Richard, S.; Barnes, Robert D. (2004). Invertebrate Zoology (7th ed.). Cengage Learning. p. 122. ISBN 978-81-315-0104-7.{{cite book}}: CS1 maint: multiple names: authors list (link)