|
|
June 5, 2004 I am one of Ms. Sheild's seventh grade students in Lexington, MA. I was wondering, how many submersibles like the ALVIN are there? William Currently there are five deep-diving subs worldwide: ALVIN, Russia's MIR 1 and 2, France's NAUTILE and Japan's SHINKAI 6500. Rick Chandler
I am a 10th grade student of Mrs. Steffens. We have been studying about evolution, and how one of the oldest organisms that existed was living deep beneath the ocean living on the heat of hydrothermal vents. My question is through past exploration, and recent explorations in deep sea research, have you noticed any signs of evolution occurring with the organism living near the hydrothermal vents? Scientists have seen evolutionary changes in the ancient high-temperature organisms found at the vents. These differences are found when we compare organisms within the same genus from completely different locations. Since these organisms have been separated from each other, they have started to change from one another. We have also found that over the years these organisms change even in the lab from their original form. Jim Holden
Hi. I'm from Ms. Langmuir's seventh grade class and I was wondering how you keep organisms alive when you bring them up from the ocean floor. Do you have to depressurize them? How do you maintain the conditions they live in? Many of the organisms found at the vents like cold temperatures and high pressure. Therefore, some scientists who want to keep the animals alive for study have built special chambers that keep the animals cold and under pressure. These chambers are made of stainless steel and have a small glass window to see the organisms. The chamber is pressurized by pumping extra water into the chamber. Jim Holden
|
||||||||||||||
© 2010 Dive and Discover™. Dive and Discover™ is a registered trademark of
Woods
Hole Oceanographic Institution
