Marine Review 3 - I. Terms to Know 1) Pelagic Zone- Largest...

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I. Terms to Know 1) Pelagic Zone- Largest division of marine world. It is composed of all the oceans water. It has large influence on all life in food and oxygen production and weather and climate. Subdivided into the Neritic and Oceanic Zone. 2) Neritic Zone- Overlies continental shelf. It is very productive part of ocean. All of it is shallow-not subdivided. 3) Oceanic Zone- Deep water in the open sea. It is beyond the continental shelf break. Its not as productive because their aren’t as many nutrients. It is subdivided into the Epipelagic, Mesopelagic, Bathypelagic, Abyssopelagic, and Hadalpelagic Zones. 4) Epipelagic Zone- Top layer of the ocean (surface layer). Depth is 200 meters. It receives the most sunlight and is most productive. 5) Photic Zone- It is 0-200 meters in depth. Photosynthesis occurs in this zone. 6) Mesopelagic Zone- It is 200-1000 meters deep with no photosynthesis and has a constant environment. Many organisms migrate to surface for feeding. Many bioluminescent organisms. 7) Twilight Zone- also known as Disphotic Zone. It is 200-1000 meters deep, but not 100% dark. Not enough light for photosynthesis. 8) Photosynthesis-
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This note was uploaded on 04/19/2011 for the course MAR 1011 taught by Professor Currie during the Spring '10 term at Florida State College.

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Marine Review 3 - I. Terms to Know 1) Pelagic Zone- Largest...

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