Montipora coral (Montipora foliosa)

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Montipora foliosa
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Montipora coral fact file

Montipora coral description

KingdomAnimalia
PhylumCnidaria
ClassAnthozoa
OrderScleratinia
FamilyAcroporidae
GenusMontiopora (1)

Montipora foliosa is an encrusting coral typical of reefs in the tropical Indian and Pacific Oceans (3) (4). This rather inconspicuous coral often forms colonies arranged in a plate-like structure. It has small polyps, with inward projecting teeth, arranged in rows between prominent skeletal ridges. One of the most remarkable and ecologically important features of some corals is that the polyps secrete a hard skeleton, called a ‘corallite’, which over successive generations contributes to the formation of a coral reef. The coral skeleton forms the bulk of the colony, with the living polyp tissue comprising only a thin veneer (3). Living colonies of Montipora foliosa are usually cream, brown or pink in colour (3) (4).

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Montipora coral biology

Like many coral species, the tissue of Montipora foliosa contains large numbers of single-celled algae called zooxanthellae. The coral and the algae have a symbiotic relationship in which the algae gain a safe, stable environment within the coral's tissues, while the coral receives nutrients produced by the algae through photosynthesis. By harnessing the sun's energy in this way, corals are able to grow rapidly and form vast reef structures, but are constrained to live near the water surface. While, on average, zooxanthellate coral can obtain around 70 percent of its nutrient requirements from zooxanthellae photosynthesis, the coral may also feed on zooplankton (3)

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Montipora coral range

Montipora foliosa is found in the Indian and Pacific Oceans, ranging from the Red Sea, Gulf of Aden and southwest Indian Ocean, across the northern Indian Ocean, including the Arabian Gulf, to Southeast Asia, Japan and the East China Sea, and the West and Central Pacific Ocean (1).

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Montipora coral habitat

This coral is found in shallow tropical reefs, occurring mostly on protected upper reef slopes, to depths of at least 20 metres (1)

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Montipora coral status

Classified as Near Threatened (NT) on the IUCN Red List (1) and listed on Appendix II of CITES (2).

IUCN Red List species status – Near Threatened

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Montipora coral threats

With an estimated 20 percent of the world’s coral reefs already destroyed, Montipora foliosa faces many of the threats affecting coral reefs globally (5) (6). Worldwide there is increasing pressure on coastal resources resulting from human population growth and development. There has been a significant increase in domestic and agricultural waste in the oceans, poor land-use practices that result in an increase in sediment running on to the reefs, and over-fishing, which can have ‘knock-on’ effects on the reef (5). However, the major threat to corals is global climate change, with the expected rise in ocean temperatures increasing the risk of coral ‘bleaching’, in which the stressed coral expels its zooxanthellae, often resulting in the death of the coral. Climate change may also lead to more frequent, severe storms, which can damage reefs, and rising carbon dioxide levels may make the ocean increasingly acidic. Such stresses can also make corals more susceptible to disease, parasites and predators, such as the crown-of-thorns sea star (Acanthaster planci) (5) (6) (7)

Montipora foliosa is particularly vulnerable to predation by the crown-of-thorns sea star, as this voracious starfish has been observed to preferentially prey upon corals of the genus Montipora. Populations of the crown-of-thorns sea star have greatly increased over recent decades, and outbreaks of this species have caused mass mortality in Montipora foliosa, as well as degrading the overall quality of the reef environment. Montipora foliosa may also be threatened in some areas by harvesting, with Indonesia being the biggest exporter of this species. It is, however, perhaps more resilient to global warming and reef disturbance than some other coral species, due to its fairly large range of depth tolerances (1).

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Montipora coral conservation

In addition to being listed on Appendix II of the Convention on International Trade in Endangered Species (CITES), which makes it an offence to trade this species without a permit, Montipora foliosa also forms part of the reef community in numerous marine protected areas (1) (2). To specifically conserve this coral, recommendations have been made for a raft of studies into various aspects of its biology, population status, habitat and threats to its survival (1).

Environment Agency - Abu Dhabi is a principal sponsor of ARKive. EAD is working to protect and conserve the environment as well as promoting sustainable development in the Emirate of Abu Dhabi.
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Find out more

For further information on the conservation of coral reefs, see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

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Glossary

Algae
Simple plants that lack roots, stems and leaves but contain the green pigment chlorophyll. Most occur in marine and freshwater habitats.
Asexual reproduction
Reproduction that does not involve the formation of sex cells (‘gametes’). In many species, asexual reproduction can occur by fission; part of the organism breaks away and develops into a separate individual. Some animals can develop from unfertilised eggs; this process, known as parthenogenesis, gives rise to offspring that are genetically identical to the parent.
Colony
Relating to corals: corals composed of numerous genetically identical individuals (also referred to as zooids or polyps), which are produced by budding and remain physiologically connected.
Genus
A category used in taxonomy, which is below ‘family’ and above ‘species’. A genus tends to contain species that have characteristics in common. The genus forms the first part of a ‘binomial’ Latin species name; the second part is the specific name.
Larvae
Stage in an animal’s lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
Photosynthesis
Metabolic process characteristic in which carbon dioxide is broken down, using energy from sunlight. Organic compounds are made and oxygen is given off as a by-product.
Polyp
Typically sedentary soft-bodied component of cnidaria, a group of simple aquatic animals including the sea anemones, corals and jellyfish. A polyp comprises a trunk that is fixed at the base, and a mouth that is placed at the opposite end of the trunk and is surrounded by tentacles.
Symbiotic relationship
Relationship in which two organisms form a close association. The term is now usually used only for associations that benefit both organisms (a mutualism).
Zooplankton
Tiny aquatic animals that drift with currents or swim weakly in water.
Zooxanthellae
Single-celled dinoflagellates that form symbiotic relationships with hermatypic ‘reef-building’ corals.
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References

  1. IUCN Red List (September, 2010)
    http://www.iucnredlist.org/
  2. CITES (September, 2010)
    http://www.cites.org/
  3. Veron, J.E.N. (2000) Corals of the World. Australian Institute of Marine Science, Townville, Australia.
  4. Veron, J.E.N. (1986) Corals of Australia and the Indo-Pacific. Angus and Robertson Publishers, UK.
  5. Wilkinson, C. (2004) Status of Coral Reefs of the World: 2004. Volume 3. Australian Institute of Marine Science, Townsville, Australia.
  6. Carpenter, K.E. et al. (2008) One-third of reef-building corals face elevated extinction risk from climate change and local impacts. Science, 321: 560-563.
  7. Miththapala, S. (2008) Coral Reefs. Coastal Ecosystems Series (Volume 1). Ecosystems and Livelihoods Group Asia, IUCN, Colombo, Sri Lanka.
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Image credit

Montipora foliosa  
Montipora foliosa

© Valerie Taylor / www.ardea.com

Ardea wildlife pets environment
59 Tranquil Vale
London
SE3 0BS
United Kingdom
Tel: +44 (0) 208 318 1401
ardea@ardea.co.uk
http://www.ardea.com

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