(TMU) — As the 10-year anniversary of the horrific Deepwater Horizon oil spill approaches, the area’s ocean floor has been transformed into a fetid wasteland coated in tar and populated by handfuls of deformed, tumor-ridden crustaceans.
The explosion on a BP oil platform in the Gulf of Mexico on April 20, 2010, was one of the most catastrophic disasters to hit the ocean in human history, with the U.S. government estimating that 4.9 million barrels (210 million gallons) were discharged across hundreds of square miles.
But new video footage from a 2017 expedition has confirmed the worst fears regarding the catastrophic spill, showing that the Gulf is not only still reeling from the disaster but may have been rendered a permanent dead zone.
The footage was captured by a camera-mounted remotely operated vehicle (ROV) operated by a team at the Louisiana University Marine Consortium, or LUMCON. Their findings on the apocalyptic ruin lying extant across the once-thriving deep sea was recently published in the journal Royal Society Open Science.
When marine researcher Clifton Nunnally first saw the footage uncovered by the ROV, he was blown away by the horrors that he witnessed.
As Atlas Obscura reports:
“’Nothing prepared us for what we saw,’ [Clifton said.] … a slick black wasteland, empty of all its usual denizens, such as sea cucumbers and giant isopods. Instead, the area had been taken over by strange crabs and shrimp, either tumor-ridden or eerily languid, as if sleepwalking across the seafloor. The typically white marine snow—detritus that had drifted down from organisms living above—was jet black and clumped up. It was clear that the site was toxic, and maybe irrevocably marred.”
While the area had previously been known for its rich biodiversity, the zone surrounding the Deepwater Horizon site was devoid of such features as sea anemones, sponges and corals typical of that part of the deep sea.
Instead, they found some shrimp and a number of deformed, mutated crabs with shells blackened by oil, covered in parasites. In many cases, limbs and claws were shriveled or entirely missing.
“Everywhere there were crabs just kicking up black plumes of mud, laden with oil … There were deformities, but mostly things were missing.”
LUMCON executive director Craig McClain told CBC that his team suspects that as the oil decomposes, it’s likely mimicking a sex hormone that lures crabs to the sites—a common occurrence at other oil spills that attract lobsters.
The researchers compare the area to the La Brea Tar Pits. When the crabs do manage to find a mate, everything goes downhill from there—they end up mired in toxic detritus from the oil spill which coats their shells, preventing them from molting and ridding themselves of parasites that are naturally accumulated.
The scientists were shaken to their core by the experience. McClain explained:
“The prior week, we had done dives across the Gulf of Mexico and saw, you know, glass sponges and squids and fish and whip corals and giant isopods, one of my favorite deep sea animals.
It was the equivalent of walking around in a tropical rainforest and the next day walking around on a cement parking lot.”
And while the dire state of the Gulf demands further attention, McClain worries that nobody is paying attention. And LUMCON, which conducted its research with its own funds, can’t even afford further expeditions.
“I’m concerned that there’s not been an increased effort in and continued monitoring of the recovery or the lack of recovery at the site.
We can’t begin to know what restoration of the deep sea looks like until we actually get a handle of how fast it’s recovering in the first place.”
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