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Physical Sciences and Mathematics Commons

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Environmental Sciences

School of Natural Resources: Dissertations, Theses, and Student Research

Nutrients

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Articles 1 - 3 of 3

Full-Text Articles in Physical Sciences and Mathematics

Benthic Macroinvertebrate Response To The Restoration Of A Hypereutrophic Midwestern Reservoir, Jennifer L. Swanson May 2011

Benthic Macroinvertebrate Response To The Restoration Of A Hypereutrophic Midwestern Reservoir, Jennifer L. Swanson

School of Natural Resources: Dissertations, Theses, and Student Research

Eutrophication has been the most challenging global threat to the quality of our freshwater resources (Likens, 2010). Reversing the effects of eutrophication can be difficult and takes a great deal of time and money. A hypereutrophic Midwestern reservoir underwent a restoration from 2000-2002, which added a sediment basin at the inlet, three islands, five rock jetties, and the removal of rough fish. The primary objective of this study was to determine changes in the benthic macroinvertebrate community in response to the restoration. Water quality and benthic macroinvertebrate samples were collected once per month in June, July, August, and September in …


Influence Of Canopy Cover, Nutrients, And Season On Stoichiometric Variation Of Epilithon In Neotropical Streams., Tyler J. Kohler Apr 2010

Influence Of Canopy Cover, Nutrients, And Season On Stoichiometric Variation Of Epilithon In Neotropical Streams., Tyler J. Kohler

School of Natural Resources: Dissertations, Theses, and Student Research

Light and nutrient availability are strong factors determining the nutrient composition of epilithon in temperate stream ecosystems. However, little work has been performed regarding this association in tropical streams. In our study, we investigated 1) how gradients of canopy cover and nutrients and 2) wet/dry seasonality influence epilithon standing stocks and nutrient quality. We surveyed 18 stream locations within six watersheds that varied in nutrient and light conditions during both the wet and dry seasons on the island of Trinidad to test these questions. Additionally, we sampled four stream reaches bimonthly for three years, thinning the canopy of two of …


Influence Of Light And Nutrients On Atrazine Toxicity To Freshwater Algae, Crystal J. Hansen Aug 2002

Influence Of Light And Nutrients On Atrazine Toxicity To Freshwater Algae, Crystal J. Hansen

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.