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Acropora hemprichii

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Acropora hemprichii is a species of acroporid coral that was first described by Christian Gottfried Ehrenberg in 1834. It lives in reefs at depths of 3 to 15 m (9.8 to 49.2 ft) for between 13 and 24 years. The species is listed as vulnerable on the IUCN Red List, and has a decreasing population. It is common with a wide range, and is listed on Appendix II of CITES.

Description

Acropora hemprichii lives in colonies of densely-packed branches, which are flat or upward-facing.[2] Branches grow to diameters of between 12 and 30 millimetres (0.47 and 1.18 in) and lengths of around 80 millimetres (3.1 in).[3] These colonies are often more than 2 m (6.6 ft) wide, and can exist without the presence of any other species. The axial corallites are rounded and shaped like domes, and the incipient axial corallites are present on some specimens. The radial corallites are cone-shaped irregularly spaced, have smooth walls, and are large. It has a smooth coenosteum, and the species is mainly brown or pink-brown.[2] It exists in shallow reefs in marine environments, and at depths of 3 to 15 m (9.8 to 49.2 ft). From specimens in the Red Sea, this species has been shown to live for between thirteen and 24 years.[1] It is composed of aragonite.[4]

Distribution

Acropora hemprichii is common but only found in a small area; the Gulf of Aden, the Red Sea, the Philippines, and the Indian Ocean. Despite being affected by bleaching, in the northern areas of the Red Sea, the species has avoided most bleaching, with only 6% of reefs being destroyed over recent decades. However, the species did not survive as well in the southern areas of the Red Sea.[1] The species first existed between 0.78 and 0.13 myr ago.[4] There is no known population for it, but numbers are believed to be decreasing, and the species is affected by disease, bleaching by sea temperature rises, fishing, human infrastructure, and is prey to Acanthaster planci. It is listed as vulnerable on the IUCN Red List, and appears on CITES Appendix II.[1]

Taxonomy

It was first described by Christian Gottfried Ehrenberg in 1834 as Heteropora hemprichii, before being re-classified as Acropora hemprichi the same year.[5]

References

  1. ^ a b c d Richards, Z.; Delbeek, J.C.; Lovell, E.; Bass, D.; Aeby, G.; Reboton, C. (2008). "Acropora hemprichii". IUCN Red List of Threatened Species. 2008: e.T132981A3521498. doi:10.2305/IUCN.UK.2008.RLTS.T132981A3521498.en. Retrieved 14 September 2021.
  2. ^ a b "Acropora hemprichii. Fact Sheet. (Ehrenberg, 1834)". Australian Institute of Marine Science. Retrieved 14 December 2014.
  3. ^ Wallace, Carden (1 September 1999). Staghorn Corals of the World: A Revision of the Genus Acropora. Csiro Publishing. p. 109. ISBN 978-0-643-10281-1.
  4. ^ a b "Measurements and statistics about Acropora hemprichii". Encyclopedia of Life. Retrieved 14 December 2014.
  5. ^ "Acropora hemprichii (Ehrenberg, 1834)". World Register of Marine Species. Retrieved 14 December 2014.
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Acropora hemprichii: Brief Summary

provided by wikipedia EN

Acropora hemprichii is a species of acroporid coral that was first described by Christian Gottfried Ehrenberg in 1834. It lives in reefs at depths of 3 to 15 m (9.8 to 49.2 ft) for between 13 and 24 years. The species is listed as vulnerable on the IUCN Red List, and has a decreasing population. It is common with a wide range, and is listed on Appendix II of CITES.

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Acropora hemprichii

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Acropora hemprichii est une espèce de coraux appartenant à la famille des Acroporidae.

Description et caractéristiques

C'est un corail robuste, formant des colonies buissonnantes aux branches brunes, épaisses et robustes (comme les espèces Acropora austera, Acropora robusta, Acropora parahemprichii, Acropora rudis et Acropora variolosa avec lesquelles il ne doit pas être confondu). Suivant les conditions, les branches peuvent être plus ou moins longues, mais sont généralement ramifiées et assez droites. Les buissons formés par ces colonies atteignent facilement 2 m de diamètre, et forment des étendues monospécifiques[2].

Le corallite axial est en forme de dôme, et les corallites radiaux sont gros et coniques. Ils sont irrégulièrement espacés et pourvus de cloisons lisses et épaisses. Le coenosteum est lisse[2].

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Gros plan sur les branches et les corallites.

Habitat et répartition

On trouve cette espèce dans l'Océan Indien (notamment occidental et central), ainsi qu'en mer Rouge[2]. C'est un corail relativement abondant à faible profondeur[2].

Notes et références

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Acropora hemprichii: Brief Summary

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Acropora hemprichii est une espèce de coraux appartenant à la famille des Acroporidae.

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Biology

provided by World Register of Marine Species
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bibliographic citation
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).
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Jacob van der Land [email]
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Jacob van der Land [email]