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Periphyton Properties, Methods, and Results

Periphyton Properties, Methods, and Results. By Cailah Carroll, Mike Daubert, Ellen Moran, Juliana Sansonetti. What is Periphyton? Periphyton are communities of algae in aquatic systems such as rivers and lakes that are attached to the sediment surface or to vegetation.

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Periphyton Properties, Methods, and Results

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  1. Periphyton Properties, Methods, and Results By Cailah Carroll, Mike Daubert, Ellen Moran, Juliana Sansonetti

  2. What is Periphyton? Periphyton are communities of algae in aquatic systems such as rivers and lakes that are attached to the sediment surface or to vegetation. Where do Periphyton live? Periphyton live in shallow clear areas of water, usually the littoral zone, and can be found attached to rocks, sediment, and the parts of plants in the water. Why do we research Periphyton? We research periphyton because it is a bioindicator of the water quality of the water it live in. Periphyton is a crucial part of the food chain and without them many animals would be impacted. If there are not many Periphyton, or no Periphyton at all we can tell that the water quality is very poor and that many animals cannot survive in this water.

  3. How to obtain Periphyton? To obtain the periphyton, our group had to pick up a submerged rock from the river and begin to scrub the surface of the rock and collect what came off in a bucket. While scrubbing, we had to continually spray water onto the surface area of the rock. After several minutes of scrubbing the rock, we then covered the rock completely with a single piece of aluminium foil so there was no overlap. To find the results, you take the weight of an 100cm2 piece of aluminum foil. You then use the average weight of the aluminum foil collected on the stones and divide it by the weight of the 100cm2 piece of aluminum foil then multiply that number by 100. This tells you the area of the stones. aluminum foil and divide the weight of the aluminium foil in the stones and times it by 100. This will give you the area of the stones. This tells you how much water to add in to dilute the substance. Our teacher then did this so we could look at the substance under the microscope and look for periphyton. 100cm2 = ? .5 8 ? = 1600cm2 so, 800ml for 1600cm2

  4. Amounts Found: Shapes Found: Autumn: Autumn: 29,211 diatoms/mLround, linear, rectangular, banana,, oval Spring: Spring: 203,536 diatoms/mL round, linear, banana, oval Conclusion: When looking for periphyton in the autumn, much fewer were found than in the spring. This is due to multiple factors. In the autumn, the students looking for periphyton were not trained well enough to be able to spot all of them. After having more experience, they were able to find more periphyton in the spring. Also, river conditions in the springtime are more conducive to the growth of periphyton. Some of these conditions include more sunlight and warmer weather.

  5. Biggs, B.J., and C. Kilroy. "Stream Periphyton Monitoring Manual." NIWA. NIWA, n.d. Web. 12 June 2013. Brown, Pamela, and Alan L. Wright. "The Role of Periphyton in the Everglades." University of Florida. U.S. Department of Agriculture, Feb. 2013. Web. 12 June 2013. Chételat, J., F.R. Pick, A. Morin, and P.B. Hamilton. "Periphyton Biomass and Community Composition." The Oklahoma Water Resources Boad. Oklahoma Water Resources Board, 1999. Web. 13 June 2013. "Periphyton Cover and Biomass." Information Center for the Environment. University of California Davis, n.d. Web. 13 June 2013. Stevenson, Jan, and Loren Bahls. "Chapter 6: Periphyton Protocols." United States Environmental Protection Agency. United States Environmental Protection Agency, n.d. Web. 12 June 2013. "What are Diatoms?" Western Diatoms. Diatoms of the United States, n.d. Web. 13 June 2013.

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