Light stratification - lake ecosystem, Biology

Assignment Help:

Light Stratification - Lake Ecosystem

The penetration of light in water bodies is limited depending on the transparency of water and its ability to absorb light. On the basis of light penetration lakes become vertically stratified into two basic layers

(1) The upper trophogenic zone corresponding roughly to the photic zone in which photosynthesis dominates and the lower, and

(2) Tropholytic zone where' decomposition is most active and which corresponds to the aphetic zone.

Between these two zones is the compensation depth - the depth at which light intensity is such that the photosynthetic production is just enough to balance respiratory losses and beyond which light penetration is so low that it is no longer effective. Generally compensation depth occurs where light intensity is about 100 foot candles or approximately one per cent of full noon sunlight incident to the surface.


Related Discussions:- Light stratification - lake ecosystem

Where in leaves the photosynthetic tissue often located, Where in the leave...

Where in the leaves is the photosynthetic tissue often located? The major photosynthetic tissue is the photosynthetic parenchyma (also called as chlorenchyma, do not confuse wi

Explain about doubling earth''s human population, Identify three possible c...

Identify three possible consequences of doubling Earth's human population. Increased CO2 in the atmosphere and globalwarming; increased use of resources to producehomes, schoo

Introduction of formation of soil, FORMATION OF SOIL Evolution of Eart...

FORMATION OF SOIL Evolution of Earth took place five to eight billion years ago when it was a red hot magma (molten rock). It took millions of years for the magma to cool down

Explain about the torbed dryer, Explain about the Torbed Dryer? On the ...

Explain about the Torbed Dryer? On the other hand, is a variation of the fluidized bed dryer. This is designed for use with particulate foods. Torbed dryers are used to dry haz

What is linkage, What is linkage? Two genes are said to be under linkag...

What is linkage? Two genes are said to be under linkage, or linked, when they reside in the same chromosome. For instance, the research of the human genome discovered that t

Describe the theory of capillarity of water, a) Describe the theory of capi...

a) Describe the theory of capillarity of water translocation in plants. b) Can the theory define translocation of water in 100 m tall trees? Give one reason.

Transport of oxaloacetate, Pyruvate   carboxylase   is a mitochondrial   ma...

Pyruvate   carboxylase   is a mitochondrial   matrix enzyme whereas the other enzymes of gluconeogenesis are situated outside the mitochondrion. Thus oxaloacetate are produced by p

Write the meaning of diabetes mellitus, Q. Write the meaning of diabetes me...

Q. Write the meaning of diabetes mellitus? The word "diabetes" is from the Greek word meaning "a siphon". Diabetes patients had polyuria (passing excessive urine) and "pass it

Birth marks (naevi) and vascular naevi, Birth Marks  (Naevi): Birth Ma...

Birth Marks  (Naevi): Birth Marks  is also known  as naevi.  It  is a multiplication  of  one or more cutaneous elements within  the skin. It  is defined  as a  congenital, ci

How to prevent or overcome this nutritional deficiency, How to prevent or o...

How to prevent or overcome this nutritional deficiency?  A large number of government schemes and programmes have been launched about which we have already studied in the Publi

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd