A video posted by the US National Oceanic and Atmospheric Administration (NOAA) shows the aftermath of the ambush by a hungry Atlantic wreckfish. You can watch it for yourself in the clip below, with shark lunch being served at around 1:42.
These massive fish are also referred to as stone bass and bass gropers. They can exceed 2 metres (about 7 feet) in length, and usually hang out around deep water caves and shipwrecks.
The action took place at a depth of about 450 metres (roughly 1,480 ft) near a rise in the sea floor 130 kilometres (80 miles) off the coast of South Carolina.