Benthic zone - organisation of the marine ecosystem, Biology

Benthic Zone - Organisation of the Marine Ecosystem

The benthic zone is divisible into sub zones horizontally. These are depicted in a cross section portion of the marine habitat, adjacent to a continent.

The shape of the benthic zone is roughly the form of an inverted hat. The upper most portion is called the,

  • Supra littoral zone, comprising the beach down to the edge of the ocean.
  • Littoral zone which represents the area between the upper and lower tide levels and is, therefore, also known as intertidal zone. Littoral zone is the shore of the ocean.
  • Sub littoral or continental shelf which extends from the littoral zone to the beginning of the continental slope. The continental shelf is the underwater extension of the continent and extends to a depth of 125 to 200 metres.
  • Continental slope. The continental slope after some distance forming the
  • Continental rise which may be geologically active. This region has canyons and trenches which are subject to underwater eruptions and avalanches. The region of the continental slope and rise together comprise the bathyal zone. The bathyal zone which is 200 metres deep descends rapidly to a depth of 3,000 or 4,000 m. From this the bottom drops for further several thousand metres and levels, off around 6,000 m to form the broad flat
  • Abyssal plains where temperature is never above 4°C.
Posted Date: 1/19/2013 6:14:08 AM | Location : United States







Related Discussions:- Benthic zone - organisation of the marine ecosystem, Assignment Help, Ask Question on Benthic zone - organisation of the marine ecosystem, Get Answer, Expert's Help, Benthic zone - organisation of the marine ecosystem Discussions

Write discussion on Benthic zone - organisation of the marine ecosystem
Your posts are moderated
Related Questions
Diagnostic Clues 1) When pallor, decrease in temperature, and numbness are the only complaints, viability of the limb usually not threatened. A condition of pain, pallor,

what are the unique characteristics of a flatworm

Write briefly on neural mechanism of learning?

Water is widely used in various process applications in industry. Other major industrial uses are boiler feed water and cooling water. The king and degree of treatment of water in

Q. What are hormones? Hormones are substances collected by the circulation and secreted by the endocrine glands that act to produce effects upon specific tissues and organs and

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Ultrasonography: Ultrasounds are sound waves with a frequency of higher than the upper range of human hearing i.e., approximately 20,000 cycles per second (20 kilohertz).

Ventricular Arrhythmias :  These include premature ventricular contractions (PVC), ventricular tachycardia (VT) and ventricular fibrillation (VT). At times they may be respon

Biochemistry : The chemistry  of  living organisms that covers all  the chemical reactions occurring  in our body.