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Impacts Of River Influence And Wave Exposure On The Epipsammic Diatoms Of The Lake Superior Wave Zone, Leon R. Katona

All NMU Master's Theses

Although little is known about primary productivity in wave zone habitats of very large lakes, it is presumably dominated by microalgae that attach to mineral substrates. Watershed energetics are linked with these wave zones through river mouth habitats, which provide nutrient and organismal input to lake systems. In this study, I assessed the abundance, productivity, and community composition of epipsammic diatoms in river mouth and beach habitats along the south-central coast of Lake Superior. Chlorophyll a concentrations were more than three-fold greater in river mouths (mean ± 1SE = 1.17 ± 0.45 mg/m²), than in wave zone (0.36 …

Profile Rock, Apostle Islands

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

Castle Rock, Apostle Islands

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

La Pointe, Madeline Island

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

Drill Point, Apostle Is.

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

Anvil Rock

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

Rembrandt Arch, Apostle Islands

Orville E. Watson, D.D. Postcard Collection

No abstract provided.

"We Are The Land": Researching Environmental Repossession With Anishinaabe Elders, Joshua K. Tobias

Electronic Thesis and Dissertation Repository

Research shows that Indigenous connection to land carries important health benefits. Amongst Anishinaabe peoples, the land is the foundation for Indigenous Knowledge and central to physical, spiritual, mental and emotional health. Today, many of the most pressing health inequities experienced by Indigenous peoples are shaped by historic and on-going processes of environmental dispossession. This dissertation was framed by a community-based participatory research (CBPR) approach conducted in collaboration with two Anishinaabe communities on Lake Superior (Ontario, Canada), the greater goal being to develop strategies of environmental repossession. Developed around three manuscripts, this thesis addressed four objectives:

1) to examine the strengths …

Application Of Hydrodynamic Models In Simulating The Thermal Regime Of Lake Superior, Rasika K. Gawde

Dissertations, Master's Theses and Master's Reports - Open

In large systems, such as the Great Lakes and coastal oceans, physical processes have a significant influence on chemical and biological phenomena. Hydrodynamic modeling assists in describing these physical characteristics and in recent years, these models have been extensively applied in the Great Lakes basin to study the response of the lake ecosystem to long-term meteorological forcing conditions.

Due to its role in mediating physical, biological and chemical processes in lake environments, water temperature (and the attendant thermal regime) has been the parameter of interest in many of these mathematical modeling studies and was adopted as the primary metric for …

Climate Anomalies And Primary Production In Lake Superior, Marcel L. Dijkstra

Dissertations, Master's Theses and Master's Reports - Open

This dissertation supports the modeling of primary production in Lake Superior by offering site specific kinetics and algorithms developed from lab experiments performed on the natural phytoplankton assemblage of Lake Superior. Functions, developed for temperature, light and nutrient conditions and the maximum specific rate of primary production, were incorporated in a 1D specific primary production model and confirmed to published in-situ measured rates of primary production.

An extensive data set (supporting model calibration and confirmation), with a fine spatiotemporal resolution, was developed from field measurements taken bi-weekly during the sampling seasons of 2011, 2012 and 2014; considered to be meteorologically …