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

How a glycosidic bond would be present, A glycosidic bond would be present ...

A glycosidic bond would be present in: Select one: a. acetone. b. methyl-alpha-D-glucose. c. 2-deoxy-beta-D-ribose. d. glucose-6-phosphate. e. fructose-1, 6-bisph

What is the heterophagic intracellular digestion, Q. What is the heterophag...

Q. What is the heterophagic intracellular digestion and How is this process accomplished? Heterophagic intracellular digestion is the breaking into smaller substances of extern

Eye drops, Eye Drops Medication is instilled in the form of drops or ...

Eye Drops Medication is instilled in the form of drops or ointment.   Purpose To dilate pupil e.g. Atropine 1 per cent, drosyn 5 per cent or 10 per cent  To c

Explain the term fasb and iasb, Discuss FASB and IASB. Comment on at least ...

Discuss FASB and IASB. Comment on at least two specific aspect of the two standard setting boards and their role in setting accounting.

Define heart rate (hr) method - aerobic capacity, Define Heart Rate (HR) M...

Define Heart Rate (HR) Method -  aerobic capacity? An alternative method for determining aerobic capacity involves the measurement of heart rate. Heart rate is linearly associa

Which areas of the globe is gymnosperm abundance noteworthy, Q. In which ar...

Q. In which areas of the globe is gymnosperm abundance noteworthy? These plants are the typical vegetation of cold regions like the boreal forest or taiga of the northern hemis

Respiratory gases -respiration, Respiratory Gases -Respiration Physio...

Respiratory Gases -Respiration Physiologically the most important gases are oxygen, carbon dioxide and nitrogen. Molecular oxygen comprises 21% of the atmosphere; carbon diox

What do you mean by overgloves, Q. What do you mean by Overgloves? The ...

Q. What do you mean by Overgloves? The purpose of these gloves is to use time more efficiently and to protect the skin on the hands through minimizing the number of times that

Unified cell theory, Unified Cell Theory The present unified cell theo...

Unified Cell Theory The present unified cell theory states that All living things are composed of either a single Cell or of the cells and cell products. The cell is a m

Define the stages of convaiescenca - nutrition during stress, Define the St...

Define the Stages of ConvaIescenca - Nutrition during Stress? This period of catabolism and alteration of the hormonal environment is known as the 'adrenergic - corticoid phase

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