Dear MEL Topic Readers,
How do fish survive in the deep ocean?
Recently, video footage of snailfish was released by oceanographic scientists. What is surprising is that the film was recorded at a depth of 8,336 meters just above the seabed in the Izu-Ogasawara trench off Japan. Until 1977, life in the deep ocean had been thought impossible. But around hydrothermal vents, volcanic vents on the seabed, where geothermally heated water is discharged, biological communities get heat and nutrients found in the dusty chemical deposits and hydrothermal fluids. So, even in the deep ocean with complete darkness and freezing temperatures, some ocean creatures, such as snails, shrimp, crabs, and fish are found. But how can those creatures survive under extreme pressure? For every 10 meters you go down, the pressure increases by one atmosphere. So, at a depth of 8,000 meters, the pressure is approximately 800 atmospheres or 800 times greater than the pressure at sea level. It’s like putting scores of elephants standing on your head! There is some mechanism that allows fish to swim naturally under such pressure.
Enjoy reading the article and learning about the mechanism of deep-sea creatures.
https://www.bbc.com/future/article/20230404-how-do-animals-survive-in-the-deep-ocean
How do fish survive in the deep ocean?
Recently, video footage of snailfish was released by oceanographic scientists. What is surprising is that the film was recorded at a depth of 8,336 meters just above the seabed in the Izu-Ogasawara trench off Japan. Until 1977, life in the deep ocean had been thought impossible. But around hydrothermal vents, volcanic vents on the seabed, where geothermally heated water is discharged, biological communities get heat and nutrients found in the dusty chemical deposits and hydrothermal fluids. So, even in the deep ocean with complete darkness and freezing temperatures, some ocean creatures, such as snails, shrimp, crabs, and fish are found. But how can those creatures survive under extreme pressure? For every 10 meters you go down, the pressure increases by one atmosphere. So, at a depth of 8,000 meters, the pressure is approximately 800 atmospheres or 800 times greater than the pressure at sea level. It’s like putting scores of elephants standing on your head! There is some mechanism that allows fish to swim naturally under such pressure.
Enjoy reading the article and learning about the mechanism of deep-sea creatures.
https://www.bbc.com/future/article/20230404-how-do-animals-survive-in-the-deep-ocean
No comments:
Post a Comment