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- The seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth is known as the abyssal zone, or the abyss.
www.whoi.edu/know-your-ocean/ocean-topics/how-the-ocean-works/ocean-zones/abyssal-zone/
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What is the abyssopelagic zone?
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. The word abyss comes from the Greek word ἄβυσσος (ábussos), meaning "bottomless". [1]
- Sunlit Zone. The upper layer of the ocean is known as the sunlit, or euphotic, zone. Because water strongly absorbs light, sunlight penetrates only to depths of about 200 meters (656 feet).
- Twilight Zone. The ocean twilight zone is a layer of water that stretches around the globe. It lies 200 to 1,000 meters below the ocean surface, just beyond the reach of sunlight.
- Midnight Zone. The midnight zone, or bathypelagic, extends to about 4,000 meters (about 13,100 feet), which reaches the ocean floor in many places is in perpetual darkness.
- Abyssal Zone. The abyssal zone, or the abyss, is the seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth, where sunlight doesn’t penetrate.
Feb 25, 2021 · The seafloor and water column from 3,000 to 6,500 meters (9,842 to 21,325 feet) depth is known as the abyssal zone, or the abyss. Sunlight doesn’t penetrate to these depths, so the waters here are extremely dark, and the animals that live here often use bioluminescence to communicate.
- Epipelagic Zone
- Mesopelagic Zone
- Bathypelagic Zone
- Abyssopelagic Zone
- Hadalpelagic Zone
The Epipelagic Zone, also known as the ‘Sunlight Zone’ is the region of the ocean that sits on the continental shelf. It extends from the surface down to 200 m. The word epipelagic comes from the Greek words epi meaning “at the surfaces,” and pelagikos meaning “of the sea”. This zone is known as the Sunlight Zone because it is in this zone where en...
As you go down further than 200 metres, the environmental conditions become much more extreme. You have now entered the Mesopelagic Zone. Very little visible light makes it down this far, which is why this zone is also known as the ‘Twilight zone’. The Mesopelagic Zone extends from 200 metres to 1 000 metres and has pressure of 20 to 100 atm. This ...
The Bathypelagic Zone is the part of the ocean that extends from 1 000 metres to 4 000 metres. The name bathypelagic comes from the Greek word bathýs which means “deep.” The temperature here is around 4 degrees Celsius. Sunlight does not reach this zone, which is why it is also known as the Midnight Zone. Next to this zone, the land transitions fro...
The Abyssopelagic or Abyssal Zone is the part of the ocean that extends from 4 000 metres to 6 000 metres. The word abyss comes from a Greek word meaning “bottomless.” The temperature here is around 3 to 4 degrees Celsius. This zone covers 83% of the total area of the ocean and 60% of Earth's surface. The water in this zone is extremely cold and ha...
The Abyssal Plains are also home to deep canyon-like features, called trenches. The trenches are home to the Hadalpelagic Zone, also known as the Hadal Zone. The word “Hadal” comes from Hades, the ancient Greek god of the underworld. The Hadal Zone is not a continuous zone but rather, it includes 13 oceanic troughs and 33 trenches. Both are types o...
abyssal zone, portion of the ocean deeper than about 2,000 m (6,600 feet) and shallower than about 6,000 m (20,000 feet). The zone is defined mainly by its extremely uniform environmental conditions, as reflected in the distinct life forms inhabiting it.
- The Editors of Encyclopaedia Britannica
Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). The creation of the abyssal plain is the result of the spreading of the seafloor (plate tectonics) and the melting of the lower oceanic crust.
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. 'Abyss' derives from the Greek word ἄβυσσος, meaning bottomless. At depths of 4,000 to 6,000 metres, this zone remains in perpetual darkness. It covers 83% of the total area of the ocean and 60% of Earth's surface.
