Keith
Hey I need to know five animals that live in the bottom of the marianas trench (benthos) and I also need to know their adaptations.
Answer
The video camera on board the Kaiko probe spotted a sea cucumber, a scale worm and a shrimp at the bottom. At the bottom, the Nereus probe spotted one polychaete worm (a multi-legged predator) about an inch long. Most of the organisms collected were simple, soft-shelled foraminifera.
Giant Single-celled Xenophyophores: Recent footage from National Geographic Dropcams deployed in the Mariana Trench revealed these incredible creatures, which can reach 4 inches (10 centimeters) in length and which each have many nuclei but just one enormous cell. They can take various forms, from disclike to wildly undulating, and they consume food by surrounding and absorbing it, similar to more familiar microscopic single-celled creatures such as amoebas.
Fish: Snailfish (Pseudoliparis amblystomopsis) currently hold the record as the deepest living fish ever photographed, having been filmed 4.8 miles (7.7 kilometers) beneath the surface of the Pacific Ocean in 2008. But Jacques Piccard and Don Walsh of the Trieste bathyscaphe mission reported seeing a flatfish when on the bottom of the trench in the 1960s. Since they had no underwater cameras and didnât collect the fish as a sample, many have dismissed the sighting as a trick of the eye. Walsh says heâs certain that what they saw was a fish. The DEEPSEA CHALLENGE expedition could potentially confirm the Trieste pilotsâ story half a century after their sighting.
Crustaceans: Amphipods are some of the most commonly encountered deep-sea creatures living on and above the seafloor. Related to shrimp, these armadillo-like crustaceans will devour almost anything they can find, from bacteria, phytoplankton, and fish to the remains of large animals that have come to rest on the ocean bottomâand theyâve even been known to prey on each other.
Echinoderms: Sea cucumbers (holothurians) are relatives of starfish and are found at all depths in the ocean. They amble across the deep seafloor, vacuuming up mud and digesting the minute organic particles found within. This strategy serves the sea cucumber wellâin places they can make up 90 percent of the biomass in the deep sea, making them one of the dominant forms of life on Earth. Strange shapes, patterns, and forms of motion continue to surprise and intrigue scientists with each discovery.
Mollusks: Water pressure at the bottom of the Mariana Trench makes growing a shell a challenge. At great depths calcium carbonate, the material that makes seashells hard and strong, is slowly corroded by seawater. But this hasnât stopped snails and bivalves from colonizing the trenches. Snails with soft shells have been discovered in the Japan Trench, and dense communities of clams inhabit trench sites where methane-rich fluids percolate through geological faults in the seafloor.
Cnidarians (Sea Anemones, Coral, and Jellyfish): Cnidarians could be encountered on the DEEPSEA CHALLENGERâs journey to the depths, on or above the trench floor and on the steep, rocky walls of the trench. Jellyfish and their relatives have been photographed drifting at great depths, but none have ever been collected, and itâs unknown if they belong to a species new to science. Rocky outcrops deep in the trench may also harbor undiscovered corals, anemones, and other organisms that need a hard surface to grow upon.
http://deepseachallenge.com/the-science/biology/
Adaptations to:
Pressure increases with depth.
Temperature decreases with depth.
Nutrient levels tend to be low in the open ocean.
Light only penetrates into the upper 100 - 200 m of the oceans (depending on how clear the water is).
http://www.smarterscience.com/marianatrenchbiology.html
As small organisms with hard, calcareous shells have trouble growing at extreme depths because of the high solubility of calcium carbonate in the pressurized water, scientists theorize that the preponderance of soft-shelled organisms may have resulted from the typical biosphere present when the Challenger Deep was shallower than it is now.
http://en.wikipedia.org/wiki/Challenger_Deep#Lifeforms
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC106178/ (more technical)
http://en.wikipedia.org/wiki/Mariana_Trench#Life
http://www2.macleans.ca/2012/03/07/oceans-11-km-deep-that-is/
The video camera on board the Kaiko probe spotted a sea cucumber, a scale worm and a shrimp at the bottom. At the bottom, the Nereus probe spotted one polychaete worm (a multi-legged predator) about an inch long. Most of the organisms collected were simple, soft-shelled foraminifera.
Giant Single-celled Xenophyophores: Recent footage from National Geographic Dropcams deployed in the Mariana Trench revealed these incredible creatures, which can reach 4 inches (10 centimeters) in length and which each have many nuclei but just one enormous cell. They can take various forms, from disclike to wildly undulating, and they consume food by surrounding and absorbing it, similar to more familiar microscopic single-celled creatures such as amoebas.
Fish: Snailfish (Pseudoliparis amblystomopsis) currently hold the record as the deepest living fish ever photographed, having been filmed 4.8 miles (7.7 kilometers) beneath the surface of the Pacific Ocean in 2008. But Jacques Piccard and Don Walsh of the Trieste bathyscaphe mission reported seeing a flatfish when on the bottom of the trench in the 1960s. Since they had no underwater cameras and didnât collect the fish as a sample, many have dismissed the sighting as a trick of the eye. Walsh says heâs certain that what they saw was a fish. The DEEPSEA CHALLENGE expedition could potentially confirm the Trieste pilotsâ story half a century after their sighting.
Crustaceans: Amphipods are some of the most commonly encountered deep-sea creatures living on and above the seafloor. Related to shrimp, these armadillo-like crustaceans will devour almost anything they can find, from bacteria, phytoplankton, and fish to the remains of large animals that have come to rest on the ocean bottomâand theyâve even been known to prey on each other.
Echinoderms: Sea cucumbers (holothurians) are relatives of starfish and are found at all depths in the ocean. They amble across the deep seafloor, vacuuming up mud and digesting the minute organic particles found within. This strategy serves the sea cucumber wellâin places they can make up 90 percent of the biomass in the deep sea, making them one of the dominant forms of life on Earth. Strange shapes, patterns, and forms of motion continue to surprise and intrigue scientists with each discovery.
Mollusks: Water pressure at the bottom of the Mariana Trench makes growing a shell a challenge. At great depths calcium carbonate, the material that makes seashells hard and strong, is slowly corroded by seawater. But this hasnât stopped snails and bivalves from colonizing the trenches. Snails with soft shells have been discovered in the Japan Trench, and dense communities of clams inhabit trench sites where methane-rich fluids percolate through geological faults in the seafloor.
Cnidarians (Sea Anemones, Coral, and Jellyfish): Cnidarians could be encountered on the DEEPSEA CHALLENGERâs journey to the depths, on or above the trench floor and on the steep, rocky walls of the trench. Jellyfish and their relatives have been photographed drifting at great depths, but none have ever been collected, and itâs unknown if they belong to a species new to science. Rocky outcrops deep in the trench may also harbor undiscovered corals, anemones, and other organisms that need a hard surface to grow upon.
http://deepseachallenge.com/the-science/biology/
Adaptations to:
Pressure increases with depth.
Temperature decreases with depth.
Nutrient levels tend to be low in the open ocean.
Light only penetrates into the upper 100 - 200 m of the oceans (depending on how clear the water is).
http://www.smarterscience.com/marianatrenchbiology.html
As small organisms with hard, calcareous shells have trouble growing at extreme depths because of the high solubility of calcium carbonate in the pressurized water, scientists theorize that the preponderance of soft-shelled organisms may have resulted from the typical biosphere present when the Challenger Deep was shallower than it is now.
http://en.wikipedia.org/wiki/Challenger_Deep#Lifeforms
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC106178/ (more technical)
http://en.wikipedia.org/wiki/Mariana_Trench#Life
http://www2.macleans.ca/2012/03/07/oceans-11-km-deep-that-is/
What Japanese movies or TV shows do you recommend me to watch?
Jim G
I want to watch some Japanese movies or TV shows. What do you recommend me to watch?
Answer
Japanese shows can be very funny but they are very odd since they are based on embarrassing and torturing people. One of my favorite shows took place in a marine park where they had a small shack overlooking the Piranhas. They were showing people the pictures of what could happen to a cow if it got eaten then they dropped a big fish into the water. The water boiled up for about a minute then they pull the fish bones out. Just then, the guy doing the demonstration gets a phone call and steps outside.
Now we see what is really happening. They have a giant speaker under the shack and six Japanese body builders. They speaker starts playing a rumbling sound and the body builder tip the shack into the pond. The floor is waxed so the person inside is dumped into the pond screaming. Then we see the underwater camera and there is a guy in a wet suit(who switched the fish for the bones on the fishing line) and he starts pinching the guy who fell into the water. The guy is screaming in fear thinking he is being eaten alive. Then he finally figures out it's all a prank and has to be polite and say "oh you got me good, very funny!"
I saw them do this to about six celebrities and I was laughing so hard I could hardly breath. This is pretty typical of a Japanese show though. In another one, they had a contest to see who would keep their legs in a box full of bees and someone underneath was putting clothes pins on their legs. Seeing how long someone can suffer is big in Japan.
As for movies, Sanjuro is good as well as Tampopo. Tampopo is only about 20 years old and set in modern Tokyo. It's very funny. Most of the films I know are Samurai though. The Hidden Fortress, Seven Samurai, Yojimbo, Samurai Banners.
Japanese shows can be very funny but they are very odd since they are based on embarrassing and torturing people. One of my favorite shows took place in a marine park where they had a small shack overlooking the Piranhas. They were showing people the pictures of what could happen to a cow if it got eaten then they dropped a big fish into the water. The water boiled up for about a minute then they pull the fish bones out. Just then, the guy doing the demonstration gets a phone call and steps outside.
Now we see what is really happening. They have a giant speaker under the shack and six Japanese body builders. They speaker starts playing a rumbling sound and the body builder tip the shack into the pond. The floor is waxed so the person inside is dumped into the pond screaming. Then we see the underwater camera and there is a guy in a wet suit(who switched the fish for the bones on the fishing line) and he starts pinching the guy who fell into the water. The guy is screaming in fear thinking he is being eaten alive. Then he finally figures out it's all a prank and has to be polite and say "oh you got me good, very funny!"
I saw them do this to about six celebrities and I was laughing so hard I could hardly breath. This is pretty typical of a Japanese show though. In another one, they had a contest to see who would keep their legs in a box full of bees and someone underneath was putting clothes pins on their legs. Seeing how long someone can suffer is big in Japan.
As for movies, Sanjuro is good as well as Tampopo. Tampopo is only about 20 years old and set in modern Tokyo. It's very funny. Most of the films I know are Samurai though. The Hidden Fortress, Seven Samurai, Yojimbo, Samurai Banners.
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Title Post: What are five benthos of marianas trench and what are their adaptations?????? PLease?
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Rating: 100% based on 99998 ratings. 5 user reviews.
Author: Unknown
Thanks For Coming To My Blog
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