Characteristics of lake ecosystems, Biology

Characteristics of Lake Ecosystems

The environment of static waters of lakes and ponds sharply contrasts with those of lotic ecosystems. Light penetration in lakes is usually up to a certain depth which as you knows is affected by turbidity. Temperature and dissolved oxygen also vary with depth. Dissolved oxygen in stagnant water is generally less compared to lotic systems because only a relatively small surface of the water body is indirect contact with air. Decomposition of organic matter usually takes place at the bottom of the lake.

The oxygen content usually decreases with depth. The gradations of temperature, sunlight and oxygen are directly responsible for vertical zonation or stratification occurring in lakes. They are also responsible indirectly for horizontal zonations of lakes as they profoundly influence the distribution of lake organisms which contribute to the characteristic horizontal zonations.

Posted Date: 1/19/2013 4:25:47 AM | Location : United States







Related Discussions:- Characteristics of lake ecosystems, Assignment Help, Ask Question on Characteristics of lake ecosystems, Get Answer, Expert's Help, Characteristics of lake ecosystems Discussions

Write discussion on Characteristics of lake ecosystems
Your posts are moderated
Related Questions
Homologous Recombination is the exchange of the sequence between two associated but different DNA (or RNA) molecules, with the result that a new "chimeric" molecule is obtained. S

Competition - Processes in Succession The aggregation of individuals in an area leads to inter specific and intra specific competition. The competition is usually for

A female frog has a genetic trait that stops it from producing eggs. How likely is it that this trait will spread by the frog population? Explain your answer. This trait will

Q. Pathology of mitral regurgitation? During left ventricular systole as the pressure rises in left ventricle, blood is pumped simultaneously both into aorta and left atrium. T

Describe about the Argyll Robertson Pupil (ARP) Argyll Robertson Pupil (ARP) occurs in patients who have tertiary syphilis. There is a "light-near dissociation" because pupils

What is Oogenesis ? The female sex cells, or eggs, are formed in the ovaries, the primary sex organs of the female. The precursor of the egg cells, or oogonia, are formed duri

A human is better able to ride a bike because individual neurons communicate information faster than modern computer chips. true or false

Q. Describe about Cardiomyopathy due to Persistent Tachycardia? In occasional cases, particularly in children recurrent or incessant episodes of supraventricular or ventricular

Define Role in protein metabolism and growth? Severe vitamin A deficiency results in abnormal RNA metabolism and protein synthesis and hence interferes with growth. Hence vitam

Explain Alternate Photosynthetic Pathways? An alternate photosynthetic pathway is the C4 pathway, where plants incorporate carbon into four-carbon compounds instead of 3PG. Thi