Effects of Decreasing pH on Freshwater Ecosystems Inhabited by Snails and Salvinia
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document in english
biology
school essay
published 02/10/2007
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SummaryThe ecosystem of a freshwater lake, stream, and river is greatly influenced by the environment it is in. Temperature, light, nutrients, rainfall amounts, species composition and organic or inorganic pollutant levels all differ from lake to lake, depending on the circumstances of their environment. A change in any one of these factors would have a direct effect on the number of organisms that populate a lake. One way in which the contents of water changes is eutrophication. During this process, organic materials, sediment and nutrients are blown from the surrounding environment into the pond. This in turn increases the nutrient levels in the water. (Bole 56)
Table of Contents
- This experiment tests how decreasing ph affects the life in pond water. Acidification of lakes is becoming a more widespread problem, due to an increasing number of pollutants in the air that contaminate acid rain
- We believed that this experiment was important in that it related the problems facing lakes today. Acidification is a dangerous to the environment killing off many organisms in living freshwater
- Materials and Methods
- Results
- Discussion
- Our biggest error in methodology happened in the measurements of water clarity.
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