A Biological and Chemical Study of Lake Marion

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Abstract Lake Marion, located on Saint Xavier University, is home to a very important ecosystem which includes algae, zoo- and phytoplankton, ducks, geese, waterfowls, as well as many other plants and animals. The purpose of the experiments is to observe and analyze how the ecosystem of Lake Marion is being negatively impacted with avian botulism and invasive species of plants. The location where all the environmental tests were done was at -87.72 longitude and 41.709 latitude. The temperature was 21.5°C. The conductivity was 365 Ω. The turbidity was 32.9 NTU. The amount of O2 dissolved in the water was 22.3 mg/L. Test results supported our hypothesis, confirming Lake Marion is severely polluted. Small lakes are a delicate ecosystem, and continued biological and chemical monitoring is imperative to create restoration plans. The lake is an invaluable asset to the Saint Xavier University community, providing both a peaceful, natural oasis, and as an interactive classroom to science students. Introduction The area of which is present day Lake Marion was once swampland. In the 1950’s, construction workers needed a dumping location from the construction of the future residence halls. As the crew dug, they hit a natural underground spring and the school officials allowed the spring to fill up (Bara, 2013). Lake Marion is located north of the Andrew Conference Center and east of the football fields on campus. The small lake, Lake Marion, is surrounded by a lighted walking trail in the center of the campus and provides a scenic backdrop to many campus activities. The surrounding area of Lake Marion features grassland with trees and bushes planted around the lake itself. The plants play an important role for shade in the summer and for the ducks to hide in. There are benches on most areas around the lake for students or neighboring folk to rest. The purpose of

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