High seas:
The deep sea starts beyond the shallower continental shelf
and includes the slope and rise of the continental
margin, deep-ocean basins and plains, trenches, midocean
ridge systems, smaller ridge systems, seamounts, plateaus
and other underwater features rising from the deep
ocean floor. This area constitutes over 90 percent
of the ocean bottom and mostly lies beyond 200 nautical
miles from shore.
Professor Callum Roberts
Professor of Marine Conservation
University of York, England
High Seas
Economic exclusion zone
Deep sea life
Deep sea benthos (organisms living
on and in the seafloor)
