Monday, 23 March 2015




Zonation of lake based on temperature:

-Epilimnion- warm & rich O2

-thermocline- rapid decrease of temp

-Hypolimnion- low temp, low O2, poor light penetration


Factors affecting growth of microorganisms in ponds and lakes
·       -   Temperature  (0-100⁰C)
·        -    pH
·        - Oxygen ( Limiting factor)
·       - Sunlight Penetration

·        -   Nutrients



1 comment:

  1. good job :D
    just want to know.. what is the different in microbial growth in this 2 types of lakes??? are the oligotrophic have less microorganisms in the lake compared to eutrophic??

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