The [abyssal zone](https://en.wikipedia.org/wiki/Abyssal_zone) (known as abyssopelagic zone), goes from 4000 to 6000m, just before the [Hadopelagic](Hadal.md) zone. It covers 83% of the total area of the ocean. The temperature is around 2 to 3°C and the zone is deplated of oxygen as well as light. Life still exist, but very limited. Mostly [Crustacea](Crustacea.md), [Mollusca](Mollusca.md), some very specifics fishes and microorganisms.