Isis Nelson
Dr. McCulloch
BIOL 203
March 8, 2013
Abstract
Title: Multiple comparisons between different locations with dissolved oxygen.
Is there a difference in the dissolved oxygen in the wetlands, woods, lake, and water area near the succession plots? Dissolved oxygen is the amount of oxygen that appears inside water. This experiment was tested over Winthrop University’s school ground wetlands. The wetlands are proximately about 1.1 acres in length. Also the amount of dissolved oxygen in the wet area that is close to the succession plot may have been influenced by the bug’s activity. …show more content…
If the surface area is greatly decreased then the amount of oxygen will be less in the body of water. Also the hotter the temperature of water, the less dissolved oxygen it will have. An organization called APEC, implied, “Dissolved oxygen (DO) refers to the amount of oxygen dissolved in water and is particularly important in limnology (aquatic ecology). Oxygen comprises approximately 21% of the total gas in the atmosphere; however, it is much less available in water. The amount of oxygen water can hold depends upon temperature (more oxygen can be dissolved in colder water), pressure (more oxygen can be dissolved in water at greater pressure), and salinity (more oxygen can be dissolved in water of lower salinity). Many lakes and ponds have anoxic (oxygen deficient) bottom layers in the summer because of decomposition processes depleting the oxygen …show more content…
This experiment was tested in Rock Hill, South Carolina at The Winthrop Recreational Research Complex location. Using a dissolved oxygen probe connected to a LabQuest Vernier with the software Logger Pro, the experiment was tested in the woods, wetlands, lake, and a water area near the woods. In each location there were five samples taken to be tested. Every location had the samples taken in different positions inside the area. Within each water location tested, the first sample of water was taken half a meter (19.69 inches) away from the shore line, then another half a meter from that area and so until you got five test results in each space. There should be more than one person recording results, another holding the LabQuest Vernier to tell the others what their results were, and another person actually using the dissolved oxygen probe to test the experiment. When using the dissolved oxygen probe, the correct way of using it is to have distilled water close at hand to clean the probe after each use. Make sure that when putting probe in water you move it in a clockwise motion at a medium speed. All of the data for this dissolved oxygen experiment was analyzed using the t-test calculator provided by Winthrop University blackboard. Results
The day that the data was collected the temperature, was about 67 degrees Fahrenheit and the wind speed was about 2amp. The average dissolved oxygen