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  • 20.05.2010
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Ocean bottom life

The deep sea or deep layer is the lowest layer in the ocean, existing below the thermocline and Life on the deep ocean floor was assumed to rely solely on falling organic matter, and therefore ultimately the sun, for its energy source until the. On the ocean floor, on average about metres ( feet) below the surface, the water is completely black and very cold. Here in the abyssal zone. The films he captured show that remarkable sea life exists all the way to the bottom. They are being pored over by scientists around the world. Exploring the deep ocean floor: Hot springs and strange creatures The ocean floor is home to many unique communities of plants and animals. Most of these marine ecosystems are near the water surface, such as the Great Barrier Reef, a 2,km-long coral formation off the northeastern coast of Australia. Biogenous material is the sediment made up of the hard parts of sea animals that accumulate on the bottom of the ocean. 3.) Hydrogenous sediment is the dissolved material that precipitates in the ocean when oceanic conditions change, and 4.) cosmogenous sediment comes from extraterrestrial sources. A hydrothermal vent at the bottom of the ocean: Scientists are exploring several possible locations for the origin of life, including tide pools and hot springs. However, recently some scientists have narrowed in on the hypothesis that life originated near a deep sea hydrothermal vent. The chemicals found in these vents and the energy they.
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