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

Functions of respiratory pigments, Functions of Respiratory Pigments A...

Functions of Respiratory Pigments As you have learnt in the preceding sub-sections, the pigments are the carrier of oxygen. In the nonexistence of respiratory pigments the blo

Alkaloids, Miscellaneous antinutritional substances Alkaloids: Alkal...

Miscellaneous antinutritional substances Alkaloids: Alkaloids represent a large and structurally diverse group of compounds present within angiosperm plants; the majority of

Explain about the stilbenes, Explain about the Stilbenes? Stilbenes con...

Explain about the Stilbenes? Stilbenes contain 3 phenyl compounds connected by a 2-carbon methylene bridge and occur in nature in restricted distribution. In plants, they act a

Determine the bony walls of the maxillary sinus, Determine the bony walls o...

Determine the bony walls of the Maxillary sinus: The Anterior wall of the sinus has thin compact bone above the apex of the canine teeth which may extend to the lateral pirifor

Botany, subject for botany assignment

subject for botany assignment

What are the nine phyla of the kingdom animalia, Q Which are the beings tha...

Q Which are the beings that form the kingdom Animalia? What are the two big groups into which this kingdom is divided? The kingdom Animalia is the animal kingdom. usually the k

Explain the importance the relationship of structure, Explain the importanc...

Explain the importance of understanding the relationship between structure and function?

What are the advantages of panoramic x-ray, Advantages of Panoramic X-Ray ...

Advantages of Panoramic X-Ray  Opposing landmarks are easily identified  The vertical height of the bone initialy can be assessed  The procedure is performed with conveni

Sex determination - reproduction, Sex Determination - Reproduction Se...

Sex Determination - Reproduction Sex, whether an individual will be a male or a female is determined at fertilisation, and this directs and controls all the later processes i

Explain reproduction rates variation in bacterial gene, Antibiotic resistan...

Antibiotic resistance is the result of natural selection mutations, the only source of new genetic information available for bacteria. Rapid reproduction rates variation in bacteri

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