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Terrestrial and Aquatic Ecology

Grand Valley State University

Theses/Dissertations

Lake Superior

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An Assessment Of Periphyton Communities In Five Upper Peninsula Streams, Mi, Aaron Jeffrey Christiansen Aug 2019

An Assessment Of Periphyton Communities In Five Upper Peninsula Streams, Mi, Aaron Jeffrey Christiansen

Masters Theses

This project quantified lotic periphyton community change from May 2018-October 2018 in five, first and second-order Lake Superior tributary streams. Using periphyton communities, land use, geology, and abiotic factors pertinent to stream ecosystems we evaluated periphyton community succession. Using periphytometers, periphyton communities were collected and identified monthly to quantify community succession. Total phosphorus and total Kjeldahl nitrogen were measured monthly during the study. Depth, velocity, specific conductivity, and canopy cover were measured to quantify some of the physical factors within the streams. Nonmetric multidimensional scaling analysis indicated that the periphyton communities were similar between streams (ADONIS p-value =0.73) but was …