4000–6000 m
Abyssopelagic zone
The abyssal plains. Crushing pressure, near-freezing temperatures — life is rare but adapted to extreme conditions.
Light: Total darkness
Temperature: 0–2°C
Pressure: 400–600 atm
Ocean trenches reaching this depth
- 🕳️ Mariana Trench — down to 10935 m
- 🕳️ Tonga Trench — down to 10882 m
- 🕳️ Philippine Trench — down to 10540 m
- 🕳️ Kuril–Kamchatka Trench — down to 10500 m
- 🕳️ Puerto Rico Trench — down to 8376 m
- 🕳️ Peru–Chile Trench (Atacama) — down to 8065 m
