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Acropora samoensis

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Acropora samoensis is a species of acroporid coral found in the Red Sea, the Gulf of Aden, the southwest and northern Indian Ocean, the central Indo-Pacific, Australia, Southeast Asia, Japan, the East China Sea and the oceanic west and central Pacific Ocean. It occurs in tropical shallow reefs on upper slopes of reefs, from depths of 5 to 15 metres (16 to 49 ft). It was described by Brook in 1891.

Description

It occurs in digitate colonies that are either prostrate or corymbose and have diameters up to 1 metre (3 ft 3 in). Its branches taper slightly towards the ends and are curved. Its axial corallites have diameters at least double the size of its radial corallites and are dome-shaped; its radial corallites are tube-shaped. It is blue, cream, or purple in colour, and looks similar to Acropora torresiana.[2]

Distribution

It is classed as a least concern species on the IUCN Red List, but it is believed that its population is decreasing, and it is listed under Appendix II of CITES. Figures of its population are unknown, but is likely to be threatened by the global reduction of coral reefs, the increase of temperature causing coral bleaching, climate change, human activity, the crown-of-thorns starfish (Acanthaster planci) and disease.[1] It occurs in the Red Sea, the Gulf of Aden, the southwest and northern Indian Ocean, the central Indo-Pacific, Australia, Southeast Asia, Japan, the East China Sea and the oceanic west and central Pacific Ocean. It is found at depths of between 5 and 15 metres (16 and 49 ft) in tropical shallow reefs on upper slopes.[1]

Taxonomy

It was described as Madrepora samoensis by Brook in 1891.[3]

References

  1. ^ a b c Richards, Z.T.; Delbeek, J.T.; Lovell, E.R.; Bass, D.; Aeby, G.; Reboton, C. (2014). "Acropora samoensis". IUCN Red List of Threatened Species. 2014: e.T132998A54174146. doi:10.2305/IUCN.UK.2014-1.RLTS.T132998A54174146.en. Retrieved 20 November 2021.
  2. ^ "Acropora samoensis". Australian Institute of Marine Science. Retrieved 15 August 2015.
  3. ^ "Acropora samoensis". World Register of Marine Species. Retrieved 15 August 2015.
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Acropora samoensis: Brief Summary

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Acropora samoensis is a species of acroporid coral found in the Red Sea, the Gulf of Aden, the southwest and northern Indian Ocean, the central Indo-Pacific, Australia, Southeast Asia, Japan, the East China Sea and the oceanic west and central Pacific Ocean. It occurs in tropical shallow reefs on upper slopes of reefs, from depths of 5 to 15 metres (16 to 49 ft). It was described by Brook in 1891.

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Biology

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zooxanthellate

Reference

van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO).

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Jacob van der Land [email]

Description

provided by World Register of Marine Species
Colonies are corymbose or prostrate, branches are terete. Radial corallites are of two sized, thick-walled. Axial corallites are larger, with very thick walls. Colour: usually purple or cream. Abundance: uncommon, usually found only on upper reef slopes (Veron, 1986).

Reference

Roux, J.P. (2001) Conspectus of Southern African Pteridophyta. Southern African Botanical Diversity Network Report 13 Page 118 (Includes a picture).

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