| Acropora prolifera | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Cnidaria |
| Class: | Hexacorallia |
| Order: | Scleractinia |
| Family: | Acroporidae |
| Genus: | Acropora |
| Species: | A. prolifera |
| Binomial name | |
| Acropora prolifera | |
| Synonyms | |
List
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Acropora prolifera, the fused staghorn coral, is a branching, colonial, stony coral found in shallow parts of the Caribbean Sea, the Bahamas and southern Florida.
Acropora prolifera is very similar to staghorn coral (Acropora cervicornis) in appearance but usually forms smaller, denser clumps. The branches are mostly horizontal and often divide near the tip, sometimes fusing with other branches. It also resembles elkhorn coral (Acropora palmata) and genetic studies show that it is a hybrid between that and staghorn coral. [2] The corallites, the calcareous skeletal cups in which the polyps sit, are tubular and protrude from the surface of the branches. They are tightly packed and arranged in linear rows and there is a larger corallite at the tip of each branch. The branches are up to 2 cm (0.8 in) in diameter and the whole colony may grow to 1.2 metres (3 ft 11 in) across. The general colour is pale yellowish-brown and the branches have paler tips. [3]
Acropora prolifera is found in the Caribbean Sea, the Gulf of Mexico, the Bahamas and southern Florida southwards to Colombia and Venezuela. [2] It is generally found on outer reef slopes, in calm-water bays and in the lee of land masses, most commonly at a depth of around 7 metres (23 ft) but occasionally down to about 30 metres (98 ft). It is generally an uncommon species. [3] [4]
Many reef corals have mass spawning events when vast numbers of gametes are released into the sea at the same time. This happens with elkhorn and stagshorn corals and when these sympatric corals spawn at the same time, F1 hybrids can be formed. [5] These cannot propagate sexually but can reproduce asexually to increase the number of individuals. [5] In the case of Acropora prolifera, hybrids come in two forms. Where the female gamete is derived from the elkhorn coral, the resulting offspring is bushy and compact. Where the female gamete comes from staghorn coral, the offspring adopts a more palmately dividing form. [2]
Acropora prolifera is a zooxanthellate coral, [1] the tissues containing dinoflagellates which live symbiotically within the cells. These are photosynthetic and use the carbon dioxide and waste products of the coral while at the same time supplying oxygen and organic compounds to their host. [6]
Acropora is a genus of small polyp stony coral in the phylum Cnidaria. Some of its species are known as table coral, elkhorn coral, and staghorn coral. Over 149 species are described. Acropora species are some of the major reef corals responsible for building the immense calcium carbonate substructure that supports the thin living skin of a reef.
White band disease is a coral disease that affects acroporid corals and is distinguishable by the white band of exposed coral skeleton that it forms. The disease completely destroys the coral tissue of Caribbean acroporid corals, specifically elkhorn coral and staghorn coral. The disease exhibits a pronounced division between the remaining coral tissue and the exposed coral skeleton. These symptoms are similar to white plague, except that white band disease is only found on acroporid corals, and white plague has not been found on any acroporid corals. It is part of a class of similar disease known as "white syndromes", many of which may be linked to species of Vibrio bacteria. While the pathogen for this disease has not been identified, Vibrio carchariae may be one of its factors. The degradation of coral tissue usually begins at the base of the coral, working its way up to the branch tips, but it can begin in the middle of a branch.
The staghorn coral is a branching, stony coral with cylindrical branches ranging from a few centimetres to over two metres in length and height. It occurs in back reef and fore reef environments from 0 to 30 m depth. The upper limit is defined by wave forces, and the lower limit is controlled by suspended sediments and light availability. Fore reef zones at intermediate depths 5–25 m (16–82 ft) were formerly dominated by extensive single-species stands of staghorn coral until the mid-1980s. This coral exhibits the fastest growth of all known western Atlantic fringe corals, with branches increasing in length by 10–20 cm (3.9–7.9 in) per year. This has been one of the three most important Caribbean corals in terms of its contribution to reef growth and fishery habitat.
Elkhorn coral is an important reef-building coral in the Caribbean. The species has a complex structure with many branches which resemble that of elk antlers; hence, the common name. The branching structure creates habitat and shelter for many other reef species. Elkhorn coral is known to grow quickly with an average growth rate of 5 to 10 cm per year. They can reproduce both sexually and asexually, though asexual reproduction is much more common and occurs through a process called fragmentation.
Acroporidae is a family of small polyped stony corals in the phylum Cnidaria. The name is derived from the Greek "akron" meaning "summit" and refers to the presence of a corallite at the tip of each branch of coral. They are commonly known as staghorn corals and are grown in aquaria by reef hobbyists.
Acropora secale is a species of branching staghorn stony coral. It is found in shallow parts of the Indo-Pacific Ocean and the type locality is Sri Lanka. The oldest fossils found date back to the Pleistocene.
Acropora pulchra is a species of colonial staghorn coral in the family Acroporidae. It is found on the back fringes of reefs in shallow water in the western Indo-Pacific Ocean. The oldest fossils of this species date back to the Pleistocene.
Acropora aspera is a species of staghorn coral in the family Acroporidae. It is found on reef flats and in lagoons in very shallow water in the western Indo-Pacific Ocean.
Isopora palifera is a species of stony coral in the family Acroporidae. It is a reef building coral living in shallow water and adopts different forms depending on the water conditions where it is situated. It is found in the Western Indo-Pacific Ocean as far east as Australia.
Acropora grandis is a species of colonial stony coral. It is a large species with multiple branches forming a bush-like structure and is found on reefs and in lagoons. It is native to the tropical western Indo-Pacific and has a range extending from East Africa to the east coast of Australia.
Acropora loripes is a species of branching colonial stony coral. It is common on reefs, upper reef slopes and reef flats in the tropical Indo-Pacific. Its type locality is the Great Barrier Reef.
Acropora nasuta is a species of branching stony coral in the family Acroporidae. It is native to the western and central Indo-Pacific where it is found in shallow reef habitats. Like other corals of the genus Acropora, it is susceptible to coral bleaching and coral diseases and the IUCN has listed it as being "Near Threatened".
Acropora abrotanoides is a species of acroporid coral found in Indo-Pacific waters from the Red Sea and the Gulf of Aden east to the East China Sea, Japan, the central Pacific Ocean and Australia. It is found in shallow coral reefs that are exposed to the action of strong waves, at depths up to 15 m. It is vulnerable to coral bleaching, disease and crown-of-thorns starfish. It is resistant to predation as it has well-developed radial corallite lips.
Acropora muricata, commonly called staghorn coral, is a species of acroporid coral found in the Gulf of Aden, the Red Sea, Indian Ocean, Persian Gulf, Australia, central Indo-Pacific, Japan, Southeast Asia, the East China Sea and the oceanic central and western Pacific Ocean. It is found in tropical shallow reefs, slopes of reefs, and in lagoons, from depths of 5 to 30 m. It was described by Dana in 1846.
Acropora abrolhosensis is a species of acroporid coral that was first described by John Veron in 1985. Found in sheltered lagoons and shallow reefs, it is listed as a vulnerable species on the IUCN Red List. The population of the species is decreasing, and most specimens are found in Western Australia, but occurs in many other areas. It is also listed under CITES Appendix II.
Acropora batunai is a species of acroporid coral that was described by Carden Wallace in 1997. Found in protected, shallow reefs, it occurs in a marine environment at depths of up to 44 m (144 ft). The species is rated as vulnerable on the IUCN Red List, with a decreasing population, and is extremely fragile. It can be found over a large area but, overall, is not common.
Acropora indonesia is a species of acroporid coral that was first described by Dr Carden Wallace in 1997. Found in marine, tropical, shallow reefs in sheltered flat locations or gentle slopes, it occurs at depths of 10 to 20 m. It is listed as a vulnerable species on the IUCN Red List, and it is thought to have a decreasing population. It is common and found over a large area, and is listed on CITES Appendix II.
Acropora kirstyae is a species of acroporid coral that was first described by Jen Veron and C. C. Wallace in 1984. Found in marine, tropical, shallow reefs in sheltered areas usually at depths of 10 to 25 m, and also occurs in sheltered lagoons. It is listed as a vulnerable species on the IUCN Red List, and it is thought to have a decreasing population. It is not common and found over a large area, and is listed on CITES Appendix II.
Acropora pharaonis is a species of acroporid coral that was first described by Milne-Edwards and Haime in 1860. Found in marine, tropical, reefs on slopes sheltered from wave action, it occurs at depths of between 5 and 25 m. It is classed as a vulnerable species on the IUCN Red List, and it has a decreasing population. It is common and found over a large area and is classified under CITES Appendix II.
Acropora polystoma is a species of acroporid coral that was first described by G. Brook in 1891. Found in marine, tropical, reefs on upper slopes where waves are strong, it occurs at depths between 3 and 10 m. It is classed as a vulnerable species on the IUCN Red List, and it has a decreasing population. It is not common and found over a large area and is classified under CITES Appendix II.