New reef discovered

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Mason Gierke

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Scientists discover hidden deep-sea coral reef off South Carolina Coast
By Lauren Landrum, CNN
Updated 11:57 AM EDT, Tue August 28, 2018
180827205033-lophelia-samples-atlantic-coral-reef-super-169.jpg




(CNN)If you think Charleston, South Carolina, has plenty of history within its pre-Colonial grounds, just look at what's been hiding 160 miles off the city's coast for thousands of years: a giant deep-sea coral reef system. The chief scientist who helped make the discovery called it unbelievable.



How the hidden reef came to light


Little is known about the natural resources of the deep ocean off the United States' Southeast coast from Virginia to Georgia, so Deep Search 2018 was created to learn more by exploring the deep sea ecosystems. The project, consisting of scientists from the National Oceanic and Atmospheric Administration, the Bureau of Ocean Energy Management, and the US Geological Survey, is nearing the end of its 15-day voyage aboard the research vesselAtlantis.

The R/V Atlantis docked at its home port at the Woods Hole Oceanographic Institution in Woods Hole, Massachusetts.



A pair of dives in a submersible called Alvin confirmed the existence of the coral reef on Thursday, and based on observations, researchers estimate the reef is at least 85 miles long.



"This is a huge feature," expedition chief scientist Dr. Erik Cordes told HuffPost. "It's incredible that it stayed hidden off the US East Coast for so long."



Cordes said the ecosystem is unlike anything he has seen, with "mountains" of corals.

The submsersible Alvin collects a sample of Lophelia pertusa from an extensive mound of both dead and live coral.


The discovery of the coral reef builds upon research by scientists working aboard the Okeanos Explorer, which mapped hundreds of deep-sea mounds. The mounds, it turns out, are formed by these corals.



Dr. Sandra Brooke, a coral ecologist among the research team members who dived near the site, described seeing thriving white Lophelia coral covering the sea floor in every direction and told HuffPost it was a surprise to find so much live deep-sea coral far from the coast. Coral reefs form more easily near the surface of the water, where the sun can feed the algae.



So it exists. Now what?


A coral reef is a large community of live organisms that live in one location. Many fish and sea creatures choose to spawn here, because the protected environment of the reef means their eggs will be safe from predators.



The discovery of this Atlantic reef comes as the Trump administration is proposing to roll back a ban on offshore drilling, which would reinstate drilling leases in Pacific and Atlantic waters.

More than 140 municipalities have publicly opposed offshore drilling activities in the Atlantic, according to the environmental group Oceana. Environmental groups call the plan dirty and dangerous.



A Bureau of Ocean Energy Management spokeswoman said it funds this type of research to identify resources that must be protected should there be future energy activity off the coast, and new information from this reef study "could be useful in pre-leasing or post-leasing [oil and gas] decisions, such as those affecting sensitive habitats that are the focus of this study."



Cordes also told HuffPost this coral habitat must be protected from oil and gas development, and believes it is critical for the productivity of regional fisheries.



Interior Secretary Ryan Zinke repeatedly said in January that any offshore drilling lease will come with the condition of safety.



The reef itself still holds many mysteries, and researchers write that the discovery will keep members of the Deep Search team "busy for months, and even years, to come."



View on CNN


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Interesting article, but neither it, nor a couple of links within tells us how deep the coral is to be found.

When I saw "newly discovered reef" of course my first thought was "Can I dive it?," but Im assuming its pretty deep if they need to use a ROV to visit it. And one article said there were coral mounds 500 feet tall.

But Id like to know how deep can coral live, as I always thought it needed sunlight.
 
Interesting article, but neither it, nor a couple of links within tells us how deep the coral is to be found.

When I saw "newly discovered reef" of course my first thought was "Can I dive it?," but Im assuming its pretty deep if they need to use a ROV to visit it. And one article said there were coral mounds 500 feet tall.

But Id like to know how deep can coral live, as I always thought it needed sunlight.

NOAA has been doing deep reef studies on Florida’s gulf coast the last few years. Most reefs in the study are in the 200-500 meters (600-1500 feet) range but some are in excess of 1000 meters (3000 ft).

These coral don’t rely on zooxanthellae to help the feed. Instead they use deep water currents to supply them with ample food (zooplankton) and it helps them stay cleaned.
 
"A pair of dives in a submersible called Alvin confirmed the existence of the coral reef on Thursday, and based on observations, researchers estimate the reef is at least 85 miles long."

this "ALVIN" has been around for a while..i remember seeing footage by "ALVIN" from a deep ocean vent off the big isle of Hawaii in the eighties...

DSV Alvin - Wikipedia
 
Alvin is like a bombproof vintage car… They don’t make them like that anymore!
 
Neat discovery but not that earth shaking. As noted above they have been finding deep reefs off Florida for a while. They have also found them before off North Carolina NOAA Ocean Explorer: Life on the Edge: North Carolina Reef Systems So it sounds like this discovery is filling in the gaps in the deep reefs. Article I referred to says NC may be the north end of these reefs.
 
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