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Theses & Dissertations

Submissions

Hershey, Anne

uncg

There are 8 item/s.

TitleDateViewsBrief Description
The Effects of Restoration Structures on Nutrient Uptake and Macroinvertebrate Communities in Restored Urban Streams in Greensboro, North Carolina 2007 1079 Urban stream restoration projects have been undertaken to improve physical, chemical, and biological integrity, but there has been little assessment of the effectiveness of these projects in restoring ecological function. I looked at the effect of re...
The Importance of Biogenic Methane and Sedimentation to Benthic Chironomid Larvae in Four Reservoirs 2007 1700 The biogenic production and subsequent oxidation of methane in aquatic sediments are important microbial processes that contribute to the global carbon cycle and play a significant role in the natural flux of methane to the atmosphere. I studied the ...
Assimilation of particulate and dissolved basal carbon resources by Sphaerium nitidium and Grensia praeterita in an arctic lake 2008 800 During the summer 2006, I tested the importance of dissolved and particulate basal carbon sources to the caddisfly, Grensia praeterita, and the fingernail clam, Sphaerium nitidium, using intact sediment cores in a 1-month incubation...
Potential role of methane-derived carbon as a food source for Daphnia in a North Carolina reservoir 2010 641 Herbivorous zooplankton feed on seston, including algal, detrital, and bacterial components. However, many studies have found that Daphnia del13C is more depleted than seston del13C, and selective feeding on seston algal components has been hypothesi...
The effects of methane producers and consumers on the diet of Chironomus larvae in an Arctic lake 2010 706 Up to 40% of methane produced in aquatic systems is oxidized before it is released into the atmosphere. Microbial oxidation of methane is an important sink and potentially an important pathway for the incorporation of detrital carbon into aquatic foo...
Piscivore effect on size distribution and planktivorous behavior of slimy sculpin in arctic Alaskan lakes 2010 505 Slimy sculpin (Cottus cognatus) are known as a bottom-dwelling fish that feed primarily on benthic invertebrates. However, in arctic lakes, sculpin may also be somewhat planktivorous. Previous studies have shown that the habitat distribution of sculp...
Retention of Lake-derived Nitrogen in Arctic Streams with Different Geomorphic Settings Using a 15N Stable Isotope Tracer 2010 280 Retention of lake-derived nitrogen (N) was studied in four geomorphically distinct lake outlets located in arctic Alaska. 15N ammonium chloride tracer was experimentally added to Lakes NE-12, GTH 99, GTH 153 and GTH 114 at the beginning of the arctic...
Impact of Corbicula fluminae (Asian clam) on particulate matter transport in an urban stream. 2010 404 Wastewater treatment plant (WWTP) effluent is a significant source of anthropogenic N loading to urban streams and has been shown to impact the ability of streams to provide ecosystem services of nutrient retention and denitrification. If a stream is...