Interesting facts about the ocean Twilight Zone?

It lies 200 to 1,000 meters (about 650 to 3,300 feet) below the ocean surface, just beyond the reach of sunlight. Also known as the midwater or mesopelagic, the twilight zone is cold and its light is dim, but with flashes of bioluminescence—light produced by living organisms. The region teems with life.

1. How long is the twilight zone in the ocean?
2. How cold is the twilight zone in the ocean?
3. What animals live in the twilight zone in the ocean?
4. What percentage of sea life lives in the twilight zone?
5. How many animals live in the twilight zone?
6. Do sharks live in the twilight zone?
7. When was the twilight zone discovered?
8. Are there any plants in the twilight zone?
9. How much light does the twilight zone get?
10. Do jellyfish live in the Twilight Zone?
11. What is the biggest zone in the ocean?
12. What do fish eat in the Twilight Zone?
13. How deep can the ocean get?
14. What is the dark zone in the ocean?
15. What does it mean to be in twilight zone?

How long is the twilight zone in the ocean?

This zone contains the vast majority of commercial fisheries and is home to many protected marine mammals and sea turtles. Only a small amount of light penetrates beyond this depth. The zone between 200 meters and 1,000 meters is usually referred to as the “twilight” zone, but is officially the dysphotic zone.

How cold is the twilight zone in the ocean?

The water in the disphotic zone is cold (the temperature ranges from 41 to 39 degrees F) and decreases with depth. The pressure is high -- it can be up to 1,470 psi (pounds per square inch) and increases with depth. The amount of dissolved oxygen in the water is less than in the sunlit zone.

What animals live in the twilight zone in the ocean?

Animals that live in the twilight zone include: lantern fish, rattalk fish, hatchet fish, viperfish, and mid-water jellyfish. This murky part of the ocean begins at about 600 feet under the water and extends to the darkest part, which begins about 3000 feet down. Some squid and fish can use their bodies to make light.

What percentage of sea life lives in the twilight zone?

Although there are more species found in the sunlight zone of the ocean, approximately 90 percent of the world's marine biomass is found in the twilight zone of the ocean.

How many animals live in the twilight zone?

There are an estimated 700 different species of animals that live in the twilight zone of the ocean, also known as the mesopelagic zone. Many of these are fish species, often those that develop bioluminescence.

Do sharks live in the twilight zone?

Sharks that live in the twilight zone often have large, green eyes capable of harvesting this dim light. Whereas this habitat would appear pitch-black to the human eye, to the eye of a deep-sea shark it is perfectly lit.

When was the twilight zone discovered?

The region was initially discovered by American researchers during World War II in 1942 during anti-submarine research with sonar. Sonar at the time could not penetrate below this depth due to the large number of creatures obstructing sound waves. It is uncommon to detect deep scattering layers below 1000m.

Are there any plants in the twilight zone?

Entering the Twilight Zone

There are no plants in this zone, because there is not enough light for photosynthesis. Octopus, squid, and the hatchet fish are some of the animals that can be found in this zone.

How much light does the twilight zone get?

The area between 200 and 1,000 meters (656 and 3,280 feet) is the dysphotic zone. Also known as the twilight zone (or mesopelagic zone), light intensity in this zone is severely reduced with increasing depth, so light penetration is minimal.

Do jellyfish live in the Twilight Zone?

Most jellyfish species live in what is known as the ocean's “Twilight Zone.” Little is known about this ocean region since it is vastly underexplored, but Woods Hole Oceanographic Institution is on a mission to change that.

What is the biggest zone in the ocean?

The next deepest zone is called the bathypelagic zone (or lower open ocean). This zone starts at the bottom of the mesopelagic and stretches down to 4000 m (13,000 feet). The bathypelagic is much larger than the mesopelagic and 15 times the size of the epipelagic. It is the largest ecosystem on earth.

What do fish eat in the Twilight Zone?

Clumps of dead plankton, shells, fecal pellets, bacteria, and other carbon-rich particles also provide food for twilight zone animals.

How deep can the ocean get?

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.

What is the dark zone in the ocean?

Bthypelagic Zone - The next layer is called the bathypelagic zone. It is sometimes referred to as the midnight zone or the dark zone. This zone extends from 1,000 meters (3,281 feet) down to 4,000 meters (13,124 feet). Here the only visible light is that produced by the creatures themselves.

What does it mean to be in twilight zone?

Twilight zone is the mental state between reality and fantasy, or the lowest level of the ocean that light can penetrate. When you come home and your extremely messy teenager has cleaned the house from top to bottom, this is an example of a time when you might feel you are living in the twilight zone.