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Basically, putting a low-pressure adapted animal into high pressures will often kill it but deep-sea animals often seem immune to the release of pressure.
Basically, the release of pressure does not make any of these adaptations or animals stop working. Each time at the surface when I pull the collection canister off the ROV the canister is filled with a thick red Kool-Aid, which I presume is the remains of said red, sea cucumber.
He has conducted deep-sea research for 20 years and published over 50 papers in the area. He has participated in and led dozens of oceanographic expeditions taken him to the Antarctic and the most remote regions of the Pacific and Atlantic.
Additionally, Craig is obsessed with the size of things. Sometimes this translated into actually scientific research. Which are in shallower fish, but not deep-sea fish, as noted. Within the diving range of cetaceans there are plenty of fish species that possess gas-filled swim bladders.
For example, the rattails Macrouridae have gas-filled swim bladders and are one of the most specious deep-sea fish families. The barotrauma caused by capture is one of the reasons that working on deep-sea ecosystem structure is challenging, as many fishes have their stomachs everted out through the mouth by the expanding swim bladder a particularly gruesome way to die I would imagine.
This eversion voids the stomach contents and as a result there are many relatively common deep-sea fishes for which little is known regarding diet and ecology.
I would love to know how many people have played the song and then read this article: Great post! Now some more specifics. Cell membranes: As you may remember from high school or college biology, a cellular membrane consists of lipid bilayer. More Curious Kids articles, written by academic experts:.
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Become an author Sign up as a reader Sign in. Claire Lacey , University of St Andrews. Hi Torben, This is a great question — thank you so much for asking it. Such collapse has been observed radiographically and confirmed with blood nitrogen analyses in the deep-diving Weddell seal. Collapse of the lungs forces air away from the alveoli, where gas exchange between the lungs and blood occurs. This blunting of gas exchange is important in the deep diver because it prevents the absorption of nitrogen into the blood and the subsequent development of high blood nitrogen levels.
High blood nitrogen pressures can exert a narcotic effect so-called nitrogen narcosis on the diver. It may also lead to nitrogen bubble formation during ascenta phenomenon known as decompression sickness or "the bends. Loss of gas exchange at depth has another important implication: the lungs of the deep diver cannot serve as a source of oxygen during the dive.
Instead deep-diving whales and seals rely on large oxygen stores in their blood and muscle. Several adaptations enable this. First, these animals have mass specific blood volumes that are three to four times those found in terrestrial mammals i.
Second, the concentration of hemoglobin the oxygen-transport protein in blood is also elevated to a level about twice that found in humans.
Third, the concentration of myoglobin, the oxygen storage protein in muscle, is extremely elevated in these animals, measuring about 10 times that in human muscle. In summary, the primary anatomical adaptations for pressure of a deep-diving mammal such as the sperm whale center on air-containing spaces and the prevention of tissue barotrauma. Air cavities, when present, are lined with venous plexuses, which are thought to fill at depth, obliterate the air space, and prevent "the squeeze.
Lack of nitrogen absorption at depth prevents the development of nitrogen narcosis and decompression sickness. In addition, because the lungs do not serve as a source of oxygen at depth, deep divers rely on enhanced oxygen stores in their blood and muscle.
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