Biological Diversity Lab

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The purpose of the lab is to measure the biological diversity to assess the overall health of local streams. The more diverse the stream is with insects the healthier it is. Benthic macro-invertebrates are organisms that live underwater in streams. The Shannon diversity index is another index that is commonly used to characterize species diversity in a community. We also used an EPT index which ultimately measures the quality of the water based on the absence or presence of certain benthic macroinvertebrates. The benthic zone is the ecological region at the lowest level of a body of water. The Hester-Dendy sampler where aquatic macro-invertebrates will colonize the spaces between the rough textured plates of the sampler. The National …show more content…

Peters Creek is a 16.8-mile-long tributary of the Monongahela River and part of the Ohio River and Mississippi River watersheds, flowing through southwestern Pennsylvania. The Peters Creek watershed is a diverse fifty square miles in southwestern Allegheny County and northeastern Washington County. From the heavy industry in the east where Peters Creek enters the Monongahela River, to the commercial northeast, the suburban northern communities, and the still rural and farming south, the watershed is a veritable patchwork of land use types. There is also a county park, a turnpike, a landfill, and a coal mining legacy to add to the mix. Some communities are relatively stable while others are undergoing rapid development. Peters Creek and its tributaries provide utility to them all in a myriad of …show more content…

The stream sits approximately 1,257 feet (383 meters) above sea level. Little Salmon Creek is a small fourth order trout stream located in Forest County, Pennsylvania that is part of the Tionesta Watershed and ultimately part of the Allegheny, Ohio, and Mississippi River watershseds. The headwaters of this creek is fed by mountain springs and is void of anthropogenic pollutants with the exception of some logging roads that litter the surrounding area. This watershed is located in the heart of the Allegheny National Forest and its mouth empties into the Tionesta creek just below the small town of Kelletville, PA. This stream will serve as a baseline for our study primarily because we are already familiar with its high biodiversity and abundance of EPT's living within all stretches of the watershed. It is a great creek to drink from if you ever get

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