Depth finder, also called echo sounder, device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body of water.
The aphotic, or “midnight,” zone exists in depths below 1,000 meters (3,280 feet). Sunlight does not penetrate to these depths and the zone is bathed in darkness.
Only two have the distinction of visiting the very deepest spot on Earth, the Challenger Deep in the Mariana Trench , which lies 36,200 feet (11,030 meters, or nearly seven miles) beneath the surface of the western Pacific Ocean.
Animals That Live in the Deep Ocean
- Barreleye Fish. The deep sea is known for its “weird-looking” residents, and the barreleye fish is no exception to that.
- Zombie Worms. Zombie worms or osedax are known for their extreme feeding habits.
- Deep-sea Dragonfish.
- Deep-sea Octopus.
- Goblin Shark.
- Deep-sea Jellyfish Benthocodon -
- Pelican Eel.
- Seadevil Anglerfish.
Scientists now think there may be more species in the deep sea than in all the other environments on Earth combined - by some estimates, as many as 100 million species may live there.
Red light does not reach ocean depths, so deep-sea animals that are red actually appear black and thus are less visible to predators and prey. As light wavelength decreases from red to blue light, so does the ability of light to penetrate water.
Seas are usually smaller and less deep than oceans. An ocean is a vast and a continuous frame of salty water that shelters almost 70 percent of the total earth's surface while a sea is a large body of saline water that occupies a greater part of the world's surface but is smaller than an ocean.
Large creatures that exist in the deep oceans normally depend on food that drops from above them. It means that there is scarce food at this level. Thus, these deep swimming animals are more efficient and therefore become larger.
Here are some adjectives for ocean: shallow turquoise, little but smooth, vast and furious, legendary dehydrated, massive shallow, endless choppy, wide, alien, tempestuous and variable, turbulent and foggy, hungry and relentless, entire warm, gray nighttime, majestic, everlasting, supernatural red, white and
It's dark down there at the bottom of the sea—darker than you can probably even imagine! Let me explain The ocean is very, very deep; light can only penetrate so far below the surface of the ocean. As the light energy travels through the water, the molecules in the water scatter and absorb it.
Many species of deep water fish have massive eyes, they have evolved to function in low light, or to spot the bioluminescence of other deep see creatures. Even at extreme depth, eyes are useful for survival, and they have evolved into new forms to survive in different environments.
Salt in the ocean comes from rocks on land. The rain that falls on the land contains some dissolved carbon dioxide from the surrounding air. This causes the rainwater to be slightly acidic due to carbonic acid (which forms from carbon dioxide and water). Sodium and Chloride are 'salty.
The ocean has three main layers: the surface ocean, which is generally warm, and the deep ocean, which is colder and more dense than the surface ocean, and the seafloor sediments. The thermocline separates the surface from the deep ocean.
The 5 Layers of the Ocean
- Epipelagic Zone (Sunlight Zone)
- Mesopelagic Zone (Twilight Zone)
- Bathypelagic Zone (Midnight Zone)
- Abyssopelagic Zone (Abyss)
- Hadalpelagic Zone (The Trenches) The Hadalpelagic zone is also called the Trenches and is found from the ocean basin and below.
There are four ocean zones. The sunlight zone, twilight zone, midnight zone, and abyssal zone.
A: It's a form of decompression sickness initially observed in deep sea divers. At great depths under water the excess pressure causes nitrogen gas to be absorbed into the blood. If the diver surfaces too quickly the nitrogen forms bubbles in the blood which raise havoc in the body.
As it turns out, not very much. 95% of the ocean remains unexplored, most of which is considered the deep ocean. Ocean Today is an interactive exhibit that plays short videos on ocean related themes.
Answer and Explanation: Most of the time great white sharks live in the sunshine zone, or Epipelagic zone. This is the topmost of the ocean zones.
The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam. Challenger Deep is approximately 36,200 feet deep.
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. "Abyss" derives from the Greek word ?βυσσος, meaning bottomless. At depths of 3,000 to 6,000 metres (9,800 to 19,700 ft), this zone remains in perpetual darkness. It alone makes up over 83% of the ocean and covers 60% of the Earth.
Published on Jan 13, 2009. From filmmakers Howard and Michele hall, Under the Sea brings audiences face-to-face with the most mysterious and unusual creatures ever caught on film, while also offering an inspirational and entertaining way to explore the impact that global climate change has had on our ocean wilderness.
