There are some scavengers, but the remains would have floated to the surface..............
“... remains would have floated to the surface”
Uh, no. Without inflated lungs, a human body (or whatever pieces of it remain) don’t float. Think.
“There are some scavengers, but the remains would have floated to the surface..............”
None would cuz at that depth and pressure it’s way too cold for the bacteria that’s involved decay to start the process.
Crabs, fish and other deep sea creatures will despise of the bodies given enough time.