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Author Question: Describe how determining macroinvertebrate populations help in detecting water pollution What ... (Read 12 times)

joe

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on: Jul 21, 2018
Describe how determining macroinvertebrate populations help in detecting water pollution
 
  What will be an ideal response?

Question 2

Describe how macroinvertebrates are classified.
 
  What will be an ideal response?


isabelt_18

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Reply #1 on: Jul 21, 2018
Answer to Question 1

Sample the macroinvertebrates using a trap of some kind. Small hand-held nets (like a butterfly net) are sometimes
used. Pollution-intolerant species populations are reduced in polluted water, as compared to pollution-tolerant
species, which maintain normal levels.



Answer to Question 2

One way of classifying macroinvertebrates is in terms of their reaction to pollution. Using this system, we can
classify macroinvertebrates into three groups.
 Group 1 organisms are pollution intolerant and easily killed by impurities in the water.
 Group 2 organisms are somewhat pollution tolerant and can survive in slightly polluted water.
 Group 3 organisms are pollution tolerant and can survive in all but the most heavily polluted water.



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joe

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Reply #2 on: Jul 21, 2018
Thanks


isabelt_18

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Reply #3 on: Jul 21, 2018
Welcome :)


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