Deep Sea Floor Communities

During a trawling expedition a bunch of woody material was recovered from the bottom.

Deep sea floor communities.

Which of the following is not true of deep ocean. What feature of the ocean floor develops where the oceanic lithosphere bends downward and sinks into the mantle. They are defined by oceanographers as independent. With the exception of hydrothermal vent communities where hot water is emitted into the cold waters the deep sea temperature remains between about 1 to about 4 c.

Where in the oceans are biological communities thriving without sunlight. About 15 years ago several fascinating discoveries were made in this sparsely populated environment. False marine communities evolve more rapidly than terrestrial communities. Deep sea vent communities.

Future supplies of rare minerals for global industries with high tech products may depend on deep sea mining. A deep sea community is any community of organisms associated by a shared habitat in the deep sea deep sea communities remain largely unexplored due to the technological and logistical challenges and expense involved in visiting this remote biome because of the unique challenges particularly the high barometric pressure extremes of temperature and absence of light it was long believed. Did life originate in the abyss. Feature is exemplified by east africa the rhine valley and the baikal in siberia.

Scientists have long assumed that life on earth originated in the oceans and the recent discovery of communities of microbes and animals that congregate around hot spring vents in the deep sea has buoyed speculation that the earliest life on our planet may have occurred in the depths of the ocean in the absence of sunlight. However water never freezes in the deep sea note that because of salt seawater freezes at 1 8 c. Hydrothermal vents are like geysers or hot springs on the ocean floor. However environmental standards for seafloor integrity and recovery from environmental impacts are missing.

The conditions of the deep ocean such as eternal darkness cold temperatures hypersalinity and high pressure limits the extent of deep ocean floor communities. Most of the deep sea floor in the gulf of mexico is composed of soft rather featureless muddy sediment. Seawater circulates deep in the ocean s crust and becomes super heated by hot magma. We revisited the only midsize deep sea disturbance and recolonization experiment carried out in 1989 in the peru basin nodule field to compare habitat integrity.