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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] . At depths of 4,000–6,000 m (13,000–20,000 ft), [2] this zone remains in perpetual darkness. [3][4] It covers 83% of the total area of the ocean and 60% of Earth's surface. [5] .
- Ocean Sunlight Zone
- Ocean Twilight Zone
- The Deep Ocean
- Providing Better Insight
Aptly named for its position at the surface level, this sunlight zone, also called the surface zone or epipelagic zone, extends downward 200 meters or roughly 5% of the ocean’s average depth. At midday, it is practically fully lit by the sun, hence called the sunlight zone. It is also regarded as the warmest layer. An abundance of natural light als...
The twilight zone or the mesopelagic zone begins at 200 meters and extends downward to 1,000 meters, making up approximately 20% percent of the ocean’s total depth. It is generally a very dim region, but it does receive a sliver of sunlight at the midday point which is enough for photosynthesis to occur. The twilight zone actually plays a large rol...
The deep ocean—the third and final layer—extends from the 1,000 meter point to the ocean floor, regardless of how deep that is. At minimum, it makes up 75% of the ocean’s depth. It is a frigid region that receives absolutely no natural light. The organisms that live in this zone are bioluminescent; that is to say they produce and emit their own lig...
The ocean is a vast expanse of water that covers more of the Earth’s surface than land. Regardless, expert oceanographers have managed to divide it up into various layers. While there is crossover between the three and five layers concepts, particularly within the first two layers, this article has examined the unique characteristics of each zone. ...
- Nathaniel Whelan
- 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 · HOVs can collect mid-column seawater samples, rest on the seafloor, or travel through rough geological features, making maps and collecting samples with its robotic arms along the way. WHOI’s HOV, Alvin, is currently undergoing upgrades that will allow it to descend to 6,500 meters.
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.
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.
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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.
