Questions about deep sea marine life.

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In summary, the deepest part of the ocean, the Mariana's trench in the pacific, which is about roughly 30,000 feet deep, does have some rather strange-looking sea life inhabiting it. Some cool links: http://people.whitman.edu/~yancey/deepsea.html http://www.lifesci.ucsb.edu/~biolum/ http://www.mbari.org/Some cool links: http://www.thecephalopodpage.org/
  • #1
The_Absolute
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I wonder how marine life can withstand the enormous pressures at the bottom of the ocean without being crushed. The deepest part of the ocean, the Mariana's trench in the pacific, which is about roughly 30,000 feet deep, does have some rather strange-looking sea life inhabiting it.

How do these fish survive such deep-sea pressure?

Has anyone ever dived to the bottom of the Mariana's trench? Are there even any submersible vehicles that exist that can go that deep without being crushed into oblivion?
 
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  • #2
If you take a critter that lives near the surface, and submerge it in a trench, it will be crushed. What about critters that emerged and evolved at great depths? Can you guess what will happen to them if you take them to shallow depths?
 
  • #3
Are there any submersible vehicles that can go that deep (the floor of the Mariana's trench) without being crushed into oblivion? An ROV (remotely operated vehicle) perhaps? If so, have there been any endeavors down there?
 
  • #4
The_Absolute said:
Are there any submersible vehicles that can go that deep (the floor of the Mariana's trench) without being crushed into oblivion? An ROV (remotely operated vehicle) perhaps? If so, have there been any endeavors down there?
The oceans are a perfect place to deploy vehicles that are remotely guided. There are too few manned submersibles and it is extremely expensive to deploy them with their "shepherd" ships and crews. We could get a lot more bang for the buck with standardized, mass-produced remotes. Then when something interesting is found, you send down remotes with more specialized implements or perhaps a manned submersible if the depths do not forbid it.

Edit: And yes, you should Google on "Trieste" regarding depth limitations.
 
  • #7
I forgot the great cephalopod page (not directly related to deep sea)

http://www.thecephalopodpage.org/

Monique said:
:bugeye: what a terrible layout for a website. The content may be brilliant, but what a poor declaration of taste :smile:

Maybe he is trying to make a statement ? Kinda like:

http://socialitelife.celebuzz.com/archive/2009/11/09/new_moon_star_christian_serratos_nude_for_peta.php [Broken]

o:)
 
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What is the deepest part of the ocean?

The deepest part of the ocean is the Challenger Deep in the Mariana Trench, located in the Pacific Ocean. It has a depth of approximately 36,070 feet (10,994 meters).

What is bioluminescence and why do deep sea creatures have it?

Bioluminescence is the ability of living organisms to produce light through a chemical reaction. Deep sea creatures have this adaptation as a way to communicate, attract prey, or defend themselves in the dark depths of the ocean.

What is the most common deep sea creature?

The most common deep sea creature is the gelatinous zooplankton, which includes various types of jellyfish, comb jellies, and salps. These creatures are found in large numbers throughout the ocean's water column.

How do deep sea creatures survive in such extreme conditions?

Deep sea creatures have adapted to survive in extreme conditions such as high pressure, low light, and cold temperatures. They have thick skin or shells, special proteins in their bodies to withstand pressure changes, and some have unique ways of obtaining food, such as filter feeding or scavenging.

What is the purpose of bioluminescence in deep sea creatures?

The purpose of bioluminescence in deep sea creatures varies depending on the species. Some use it to attract mates, some use it to lure prey, and others use it as a defense mechanism against predators. It can also be used for communication and to help navigate in the dark ocean depths.

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