Animals may survive of the remains of other organisms which have fallen to the ocean floor. Hadalpelagic -Deep sea trenches are in the hadalpelagic zone. By this depth, the temperature is close to freezing and the pressure is immense.
Giant squid and angler fish are found at this depth, and whales may dive this deep for prey.Ībyssopelagic -Even fewer animals live in this zone. Many of the animals found in this zone have special adaptations for living in low light, such as the lantern fish.īathypelagic -No light reaches this depth. Mesopelagic - Some light reaches this zone but not enough for photosynthesis to occur.
Photosynthesis is possible, hence marine plant life is found at this depth as is most of the life in the ocean. Each zone is characterized by depth, with the hadalpelagic zone being the deepest.Įpipelagic -Sunlight reaches this zone. It is in this region that we start to see bioluminescent fish and all sorts of bizarre looking fish.The epipelagic zone, mesopelagic zone, bathypelagic zone, abyssopelagic zone, and the hadalpelagic zone are the major marine life zones. Larger fish like, whales and giant squid dive to these depths to feed. The light that reaches this zone is pretty faint. This zone extends from 700 feet down to about 3,280 feet. This zone is located 13,000 feet to 20,000 feet (4,000- 6,000 meters) below the surface of the ocean and is characterized by high pressure, near-freezing temperatures, and no sunlight. Photoplankton is responsible for almost half of the earth’s oxygen released in the atmosphere. Most marine animals live in this zone and feed off of photoplankton (the basis of the ocean food chain) and smaller fish. This is where the wide range of temperatures occur. This is where most of the visible light is and with light comes heat. This zone extends from the surface down to about 700 feet. The sunlight zone, the twilight zone, the midnight zone, the abyss and the trenches. The ocean water column is made up of 5 zones. In this blog, we will explore the layers of the ocean and what types of marine life resides in those layers. It is because of these elements that certain sections of the ocean only contain certain marine animals. In fact, sections of the water column in the ocean are differentiated by pressure, light, temperature, oxygen and mineral nutrients. Since the ocean is on average 3 miles deep, it may not surprise you that the water column is not uniform. In a previous blog, we talked about the depth of the ocean.
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