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Lophelia pertusa is a reef building, deep water coral, but it does not contain zooxanthellae, the symbiotic algae which lives inside most tropical reef building corals. [6] Lophelia lives at a temperature range from about 4–12 °C (39–54 °F) and at depths between 80 metres (260 ft) and over 3,000 metres (9,800 ft), but most commonly at ...
Deep-water coral Paragorgia arborea and a Coryphaenoides fish at a depth of 1,255 m (4,117 ft) on the Davidson Seamount. The habitat of deep-water corals, also known as cold-water corals, extends to deeper, darker parts of the oceans than tropical corals, ranging from near the surface to the abyss, beyond 2,000 metres (6,600 ft) where water temperatures may be as cold as 4 °C (39 °F).
Porcupine Bank is an area of the Irish shelf, on the fringes of the Atlantic Ocean approximately 200 kilometres (120 mi) west of Ireland. [1] The relatively raised area of seabed, 200 m below sea level at its highest, [ 2 ] lies between the deep-water Porcupine Seabight and Rockall Trough .
By 2008, the IUCN had assessed all 845 known reef-building corals species, marking 27% as Threatened, 20% as near threatened, and 17% as data deficient. [113] The coral triangle (Indo-Malay-Philippine archipelago) region has the highest number of reef-building coral species in threatened category as well as the highest coral species diversity ...
This in turn is the favoured sustenance of the humphead parrotfish, whose jaws are so powerful that it erodes much of the reef into fine sand. Algae also grows on the top of the reef and a battle for grazing rights between shoals of powder blue and convict tangs is shown, the former being initially overwhelmed by the latter's weight of numbers ...
The Rost Reef (Norwegian: Røstrevet) is a deep-water coral reef off the coast of the Lofoten islands in Nordland county, Norway. The reef was discovered in 2002, about 100 kilometres (62 mi) west of the island of Røstlandet. It extends over a length of about 43 kilometers (27 mi), and has a width of up to 6.9 kilometers (4.3 mi). [1]
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The species is deep reef-associated, with a depth range between 90 and 100 metres (300 and 330 ft). It is found in the Western Atlantic, particularly on the southeast coast of the US and the Gulf of Mexico .