Lotic ecosystems rivers, Biology

Assignment Help:

Lotic Ecosystems Rivers

The lotic or flowing water habitats include rivers streams, brooks etc. The most outstanding features of such habitats is the continuously flowing water which moulds the characteristics of the water bed and influences the distribution of organisms within.

In order to differentiate between the lotic and lentic habitats let us see how rivers (lotic habitats), differ from lakes that represent the Lentic habitat.

  • The rivers have a continuous - one directional flow with the entire volume of water flowing uni directionally. In large rivers the flow may be from one climatic zone to another.
  • The volume of river water keeps changing, causing variation in its velocity.
  • The water level of the rivers exhibit wide range of fluctuations.
  • Generally as a rule the depth of rivers is small as compared to lakes.
  • River waters usually flow in a narrow channel, though occasionally their channels may expand, to form river lakes.
  • The physical, chemical and biological conditions of the river gradually change with distance along the main channels in a definite direction.
  • The material transported or eroded by the rivers at any point transported by them downstream with no supporting for return, thus causing their permanent removal.
  • In rivers prolonged stagnation is absent. Rivers in comparison to lakes depend more on the surrounding land for nutrients, manufacturing little basic food materials themselves.

Related Discussions:- Lotic ecosystems rivers

What are the substances that are constitute the chromatin, Q. What are the ...

Q. What are the substances that are constitute the chromatin? What is the difference between chromosome and chromatin? The chromatin, dispersed in the nucleus, is a set of fila

What is the genotype of each parent cat, Long-hair in cats is due to a rece...

Long-hair in cats is due to a recessive long allele, l. Black cats are due to a recessive agouti allele, a. A short-haired tabby cat is crossed to a long-haired tabby cat, and they

What is yellow fever, What is yellow fever? Yellow fever is a viral inf...

What is yellow fever? Yellow fever is a viral infection that happens mainly in Central Africa and in the Amazon region of South America. It is prevented through vaccination and

Agro industrial-mineral supplements, Mineral supplements There are two...

Mineral supplements There are two major classes of mineral sources: inorganic and organic. Organic complexes, however, have been shown to be more effectively absorbed by the a

What are analogies for mitochondria, What are analogies for mitochondria? ...

What are analogies for mitochondria? Well, as you know, the mitochondria are the producers of most of a cell's energy and the nucleolus makes ribosomes. The cell wall is only i

How is gas exchange done in flatworms, How is gas exchange done in flatworm...

How is gas exchange done in flatworms? Platyhelminthes exchange gases exclusively by diffusion by their body surface. This is only possible because all cells are localized rela

Retain the tooth there are two ways-endodontics principles, Once the decisi...

Once the decision has been made to retain the tooth there are two ways for ttt: •     Non surgical retreatment :             -  guided access to apex via coronal access

Explain the process of nucleotide catabolism, Question 1 Write a short not...

Question 1 Write a short note on the following Free Energy Cori cycle Fermentation Pentose phosphate pathway Transamination Allosteric Regulation Qu

What does s-shaped pattern of population growth show, What does S-shaped pa...

What does S-shaped pattern of population growth show? How is J-shaped pattern dissimilar from it and why?

Why soybean protein used as stabilized dispersions, Soybean protein used as...

Soybean protein used as stabilized dispersions Soybean protein concentrates have been used as stabilized dispersions in milk-like beverages and simulated dairy products, such a

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