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

Difference between ectoparasite and endoparasite, Q. What is the difference...

Q. What is the difference between ectoparasite and endoparasite? The Ectoparasites are parasites that explore the external surface of the host (like, for instance, mites that p

Mechanism of fertilization, MECHANIS M OF FERTILIZATION - The process ...

MECHANIS M OF FERTILIZATION - The process of fertilization complete into 5 steps - 1 .      APPROACH OF SPERM TO OVUM For fertilization sperm & ova interaction is

What is joints in human biology, What is Joints Joints are locations...

What is Joints Joints are locations where two or more bones come together, or articulate. Bones are joined with varying degrees of rigidity. Joints may be fixed, as in the s

Explain the stages of alzheimer''s disease, Explain the Stages of alzheimer...

Explain the Stages of alzheimer's disease? Stage I - There is an increased forgetfulness, anxiety and depression. Associated nutrition related changes include difficulty in

Define sample collection and estimation of blood glucose, Define Sample col...

Define Sample collection and estimation of blood glucose? The aim of blood glucose estimation is to diagnose or to exclude or to monitor the anti-diabetic therapy. For blood gl

Define the term - magnetoencephalography, Define the term - magnetoencephal...

Define the term - magnetoencephalography A variant ERP known as magnetoencephalography (MEG) has been developed. MEG, which is still in its infancy, requires upward of 60 elect

Muscle, names and locatio

names and locatio

Why we not inundated with bacterial infections, We are told that every surf...

We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, the water we wash with, and on the hands of friends. Why ar

Are coloured bodies composed of proteins and dna, Chromosomes, coloured bod...

Chromosomes, coloured bodies, are composed of proteins and DNA; so are chromatids. At metaphase I there are 46 chromosomesaligned in pairs along the human cells equatorial plate. A

Rassenkreis and speciation, According to the current concept of speciation,...

According to the current concept of speciation, a widely distributed species should break up into partially isolated rule species. The different subspecies become differentiated fu

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