Fantastic new creatures found by British scientists... http://www.foxnews.com/scitech/2012/01/04/lost-world-sea-creatures-discovered-near-antarctica/
600 crabs per meter? That's a lot of crab! Sounds like a pretty convenient crabbing spot. You can easily scoop them up and they'll freeze as you move the cage out of the temperate zone, or you can flash fry them by putting them in the vent and eat them on the spot! mmmm