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The hadal zone, also known as the hadopelagic zone, is the deepest region of the ocean, lying within oceanic trenches. The hadal zone ranges from around 6 to 11 km (3.7 to 6.8 mi; 20,000 to 36,000 ft) below sea level , and exists in long, narrow, topographic V-shaped depressions.
In general, the snailfish (notably genus Pseudoliparis) is the most common and dominant family in the hadal zone. [ 4 ] Pseudoliparis belyaevi is a marine and deep-sea species which inhabits depths exceeding 6,000 meters that was described from a single specimen from 6380–7587 m in the Japan Trench. [ 9 ]
In 2015, Jamieson published a book entitled The Hadal Zone, Life in the Deepest oceans [42] with Cambridge University Press, which was nominated for the Royal Society of Biology Book of the Year award (2015), and endorsed by film director and explorer James Cameron. He wrote the forewords for John Quentin's 2021 Global Watch fiction novels, The ...
The hadal zone (named after Hades, the Greek god of the underworld) is a zone designated for the deepest trenches in the world, reaching depths of below 6,000 metres (20,000 ft). The deepest point in the hadal zone is the Marianas Trench, which descends to 10,911 metres (35,797 ft) and has a pressure of 110 megapascals (1,100 atm; 16,000 psi).
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Hadal zone sediments have a remarkably high amount of bacteria as compared to nearby abyssal ecosystems. [6] It is notable that not all species found in the hadal zone are solely adapted to the high pressure and low temperature hadal environment, and can be cultured outside of these conditions. [17]
Pseudoliparis amblystomopsis, or the hadal snailfish, is a species of snailfish from the hadal zone of the Northwest Pacific Ocean, [1] including the Kuril–Kamchatka and Japan Trenches. [ 2 ] In October 2008, a team from British and Japanese institutes discovered a shoal of Pseudoliparis amblystomopsis at a depth of about 7,700 m (25,300 ft ...
The final zone includes the deep oceanic trenches, and is known as the hadal zone. This, the deepest oceanic zone, extends from a depth of 6,000 metres down to approximately 11,034 meters, at the very bottom of the Mariana Trench, the deepest point on planet Earth.