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Seafloor Gas Seep Rediscovered Off East Coast
OurAmazingPlanet Staff – Aug 31, 2012 12:16 PM ET
In the early 1980s, a researcher snapped some surprising photos while tugging an instrument behind a boat. The pictures showed evidence of natural gas seeping out of the seafloor, an occurrence that was unheard of off the U.S. East Coast at the time. But due to technological limitations, the researcher wasn’t able to pinpoint the location on subsequent expeditions.
Picking up where the trail went cold, researchers used clues from these photographs to find the seep in a seafloor canyon off the coast of Maryland some 1,360 feet (450 meters) beneath the ocean.
Using an underwater vehicle with a sophisticated camera, the researchers spotted gas bubbles coming out of the sediment and white mats of bacteria that only grow in natural gas seeps. The site contains a host of life, including thick layers of mussels that are able to survive partially through a symbiotic relationship with methane-eating bacteria.
