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Historically, industrial fishers avoided coral because their nets would get caught on the reefs. In the 1980s, "rock-hopper" trawls attached large tires and rollers to allow the nets to roll over rough surfaces. Fifty-five percent of Alaskan cold-water coral that was damaged by one pass from a bottom trawl had not recovered a year later.
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).
In August 1994, RV Columbus Iselin, a research vessel owned by the University of Miami, ran aground on Looe Key and damaged approximately 164 m 2 (1,770 sq ft) of living coral and a larger area of reef framework. In 1997, the University paid $3.76 million in natural resource damage claims to National Oceanic and Atmospheric Administration (NOAA
The satellite-based mapping and prediction service calls for a 90% chance of coral bleaching occurring in the Caribbean in the next four months, with the biggest damage near Florida likely in ...
A 2015 bleaching event wiped out half of Hawaii's coral reefs, and most were off of Hawaii Island and Maui's shores. In the worst-case scenario, scientists say coral reefs could be extinct in 30 ...
Despite this interest, the deep depths of such reefs hinders both their discovery and their exploration. Coral reefs struggle to survive in the world today. "In the past 10 years the world has lost 25% of the known living coral reefs". [3] Coral reefs are particularly damaged by "…climate change, over fishing and coastal pollution". [3]
An anchor chain from the vessel damaged nearly 14,000 square feet, or about 80 percent, of reef near two scuba diving sites in the West Bay. Billionaire Paul Allen's yacht damaged Caribbean ...
A species of particular concern is the slow growing, deep-water coral Lophelia pertusa. This species is home to a diverse community of deep-sea organisms, but is easily damaged by fishing gear. On 17 November 2004, the United Nations General Assembly urged nations to consider temporary bans on high-seas bottom trawling. [3]