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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).
Deep water coral habitats are also threatened by human activities, particularly by indiscriminate trawling. These ecosystems have been little studied, but in the perpetual darkness and cold temperatures, animals grow and mature slowly and there are relatively fewer fish worth catching than in the sunlit waters above.
Deep-water coral inhabits greater depths and colder temperatures at much higher latitudes, as far north as Norway. [65] Although deep water corals can form reefs, little is known about them. The northernmost coral reef on Earth is located near Eilat, Israel. [66]
Florida's Coral Reef, the only coral reef system in the continental United States and the third-largest barrier reef ecosystem in the world, is a shallow-water reef. This deep-sea one is ...
The world’s largest deep-sea coral reef has been discovered off the East Coast: a massive 6.4 million acre seascape that stretches from Florida to South Carolina, according to National Oceanic ...
It is habitat for numerous species of bottom fish including Epinephelus morio (red grouper) spawning area. [4] "Although deeper-water corals form reefs in the dark of ocean depths, Pulley Ridge is the deepest photosynthetic coral reef that we know of today," said Robert Halley, former US Geological Survey marine geologist."
On a recent expedition, a group of ocean researchers discovered 85 miles of deep-sea coral reef off the coast of the southeastern US.
Primnoa pacifica or red tree coral is a species of soft coral in the family Primnoidae. It is a deep water coral found in the North Pacific Ocean, and plays an integral role in supporting benthic ecosystems. Red tree corals grow axially and radially, producing structures of calcite and gorgonian skeletons that form dense thickets.