The Mariana Trench is the deepest part of the ocean in the world. The biome that it is found in is called the hadal zone (hadopelagic). The Mariana Trench goes as deep as seven miles beneath the earth’s surface. The tench is located in the western Pacific ocean, east of the 14 Mariana islands. The trench is very hard to get to, so little is known about it. Because of the depth, their is no light found in the Mariana Trench. This makes it so that the producers have to make food through chemosynthesis, instead of photosynthesis. Methane and sulfur are an example of two of the chemicals that the organisms rely on. Little life is known to live here, but the life that does is very exotic. The deepest part of the Mariana Trench is called the Challenger Deep. Only a few people have been here, including James Cameron.
Some biotic factors found in the Mariana Trench:
Amphipods (shrip-like crustaceans), sea cucumbers, dumbo octopus, anglerfish, anglerfish flashlight fish, barreleye, dragon fish, benthocodon, goblin shark, frilled shark, fanfin seadevil, foraminifera (farams), and xenophyophores.
Some abiotic factors found in the Mariana Trench:
Sand, water, biogenous "ooze", absence of light, pressure, current, and heat.