超深海帯
Meanings
1
hadal zone; hadopelagic zone; trench zone
Oceanographic term for the deepest region of the ocean, below about 6,000 meters, typically in deep-sea trenches. Compare with 漸深海帯 (bathyal zone).
See also: 漸深海帯
The hadal zone refers to ocean areas deeper than 6,000 meters.
Organisms living in the hadal zone are adapted to extreme environments.