Sunlit Zone Of The Ocean

Calorie-free Zones

T he ocean can be divided from its surface to its depth into iii zones based on the corporeality of light received. They are:

Sunlight Zone 1. Sunlit Zone: This is the top layer, nearest the surface. It is as well chosen the euphotic zone . Here there is enough light penetrating the water to support photosynthesis.

Because photosynthesis occurs here, more than xc percent of all marine life lives in the sunlit zone.

The sunlit zones goes downward about 600 feet. Many animals inhabit this zone. Nigh fish alive in this zone. Plankton occurs in this zone. Plankton are free-floating aquatic organisms. They are usually microscopic and form the basis of the food chain in the ocean.

2. Twilight Zone: Only a small amount of light tin can penetrate the water at this depth. Equally the water becomes deeper, the pressure increase, too. Plants do not abound here. Only animals that have adapted to little light survive.

The twilight zone is also known as the disphotic zone .

Animals that live in the twilight zone include: lantern fish, rattalk fish, hatchet fish, viperfish, and mid-h2o jellyfish.

This murky role of the ocean begins at most 600 anxiety under the water and extends to the darkest role, which begins about 3000 anxiety down.

Some squid and fish can use their bodies to make light. These creatures are said to take bioluminescence.

(external link): Biolumenescence

3. Midnight Zone: Ninety percent of the ocean is in the midnight zone. It is entirely dark�at that place is no lite. The h2o pressure level is extreme. The temperature is virtually freezing.

The midnight zone is besides called the aphotic zone .

What can live in the midnight zone? The living things found here live close to cracks in the Earth'south chaff. These cracks requite off mineral-rich materials from the Earth itself. Special forms of bacteria utilize hydrogen sulfide from the cracks for energy to make food. All other living things in the midnight zone are nourished by these bacteria.

Living things in the midnight zone include: angler fish, tripod fish, sea cucumber, snipe eel, opposom shrimp, black swallower, and vampire squid.

Disclaimer