Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 24 for “"Zebra Mussels"”.
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The bioaccumulation of persistent contaminants by zebra mussels and their effects on state-endangered common terns
… pathway explored was via the biodeposits of zebra mussels which are consumed by round gobies (Neogobius melanostromus) and ultimately littoral fish (e.g. small-mouthed bass, Micropterus dolomieui) or terns. Because common terns breed in near-shore sites where concentrations of zebra mussels …
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Energy Reserves in Native Freshwater Mussels (Bivalvia:Unionidae) with and without Attached Zebra Mussels: Effects of Food Deprivation
… project evaluated the feasibility of salvaging zebra mussel-infested freshwater mussels from their native habitat by determining 1) how zebra mussel infestation affects unionid feeding and body condition, 2) how starvation in quarantine affects body condition of unionids, and 3) what feeding …
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Post-settlement processes and early life history dynamics of zebra mussels (Dreissena polymorpha) in the Hudson River estuary
… comprehend the dynamics of open populations. The zebra mussel, Dreissena polymorpha, in an estuarine habitat such as the Hudson River, provides an ideal system for examining the early life history period and the effect of early life history processes on population dynamics. My dissertation …
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Control strategies for the zebra mussel, Dreissena polymorpha, and the Asian clam, Corbicula fluminea: comparative stress responses and nontarget impact
… biofouling of water intake systems by the zebra mussel, Dreissena polymorpha, the comparative response of zebra mussels and the Asian clam, Corbicula fluminea, to a surfactant -based chemical control agent, the nontarget impact associated with the control agent, and the use of the Asian …
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Mercury concentration and aquatic food web alterations associated with zebra mussel invasion in Minnesota lakes
Zebra mussels (Dreissena polymorpha) are an invasive species documented in 299Minnesota lakes, with 231 of those lakes managed as walleye fisheries. Many ecological changes are associated with zebra mussel invasion, including increased water clarity, depleted pelagic energy resources, expanded …
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Spatially distributed bioaccumulation risk analysis: a GIS-based tool and a case study of polychlorinated biphenyls in the Great Lakes
… of PCBs is performed, based on concentrations in zebra mussels (Dreissena polymorpha). Zebra mussels have a great fi ltration capacity and high bioconcentration rates, increasing the bioavailability of contaminants for predator species. PCBs concentrations in different-level predators are …
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Foraging ecology, sexual selection, and divergence in sunfish (Lepomis spp.)
… shifts in diet following the invasion of zebra mussels (Dreissena polymorpha), consuming considerably more zebra mussels and fewer benthic invertebrates than before the invasion. These results contribute to a growing body of evidence that foraging ecology and its relationships with both …
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An investigation into Manganese(2+) interferences and retrospective dose assessment of shelled species using EPR spectroscopy
… dosimetry. This comparison found that shells of zebra mussels, grove snails, and heath snails were best suited as environmental dosimeters due to their low Mn²⁺ concentrations and Mn²⁺ EPR peaks. Dose-response curves for grove and heath snails were developed by irradiating shells to 2, 3, 5, 7, …
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Load reduction and invasive mussel effects on eutrophication dynamics in Saginaw Bay, Lake Huron
… until the proliferation of invasive dreissenid mussels. Dreissenid mussels were first documented in the Laurentian Great Lakes in the late 1980s. Zebra mussels (<italic>Dreissena polymorpha</italic>) spread quickly into shallow, hard-substrate areas; quagga mussels (<italic>Dreissena …
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Intensive sampling and comparison of methods in detection of non-indigenous species
… on a population of a newly introduced NIS, zebra mussels (Dreissena polymorpha), in Lake Winnipeg. Zebra mussel presence can be determined by the presence of their larvae (veligers). I hypothesized that veligers will be detected in the south basin where they were previously reported, but not …
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Evaluating non-point source microplastic pollution and its impact on biota in the Huron River
… I conducted manipulative experiments exposing zebra mussels (<em>Dreissena polymorpha</em>) in microcosms to microplastics and pharmaceuticals in a factorial design. On average, mussels ingested 57.5 ± 35.2 MP/individual during the 24-day experiment. Results from this experiment indicate that …
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Sediment toxicity and bioaccumulation of toxicants in the zebra mussel, Dreissena polymorpha, at Times Beach, Buffalo, New York
… followed by a biomonitoring study utilizing the zebra mussel, <i>Dreissena polymorpha</i>, at the Times Beach Confined Disposal Facility (CDF), located in Buffalo, New York. Concentrations of the selected contaminants (polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and …
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Downstream Transport of Zebra Mussel (Dreissena polymorpha) Environmental DNA and its Implications for Analysis
… transport on eDNA concentration, using invasive zebra mussels (Dreissena polymorpha) in Texas reservoirs as a case study. My objectives were 1) define the rate of eDNA decline during downstream transport and 2) evaluate how abiotic factors of the river affect eDNA concentration during transit …
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Evaluation of semi-passive treatment technologies for septic lagoon capacity expansion
… the natural water filtration capabilities of zebra mussels. Pilot-scale testing investigated the effects of each of these technologies on treatment performance under both cold and warm weather operation. This research aimed to understand the important mechanisms behind biological filtration …
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The Wandering Mussels: Analyzing the Ecological Impact of Dreissenid Mollusks Across Spatial and Temporal Scales in Eastern Ontario Using Environmental DNA
… circa 1990 catalyzed a compounding meltdown; mussels restructured the benthic microbiome by depleting historical taxa and uniquely enriching complex-polysaccharide fermenters that exploit nutrient-dense biodeposits. Spatially, I mapped the terminal, saturated stage of the hypothesis using …
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Population trends and ecological community interactions of freshwater mussels
Freshwater mussels (order Unionida) are a globally widespread taxon which have been described as ecosystem engineers due to their capacity to modify freshwater habitats and facilitate other taxa, with effects on wider biodiversity. At the same time, freshwater mussels rank among the most threatened …
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Environmental influences on particle size distribution of Dreissena polymorpha environmental DNA in a Texas reservoir
… the PSD of invasive Dreissena polymorpha (zebra mussels) by taking four weekly samples at four locations in Canyon Lake, a central Texas reservoir. I sequentially filtered replicate water samples through 12, 8, 5, 3, 1, and 0.2 μm filters followed by an ethanol precipitation to partition …
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Invasive non-native species and the management and exploitation of freshwater ecosystems
… molluscs by quantifying the impacts of quagga mussels (Dreissena rostriformis bugensis) in UK reservoirs. I identified that impacted sites demonstrated: an increase in overall reactive silica and soluble reactive phosphorus concentrations; reductions in overall diatom, cyanobacteria and …
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Functional Studies of Novel Bioactives From Complex Host-Microbiomes as Drug Leads for Cancer, Infectious Disease, Depression and Pain
… on the attachment of Dreissena polymorpha (zebra mussel). The ketone ( n-decan-2-one) inhibited attachment of the bacteria and zebra mussels. Although the aliphatic ketone alone is not a potential commercial alternative for antifouling coatings, incorporating the functionality into coating …
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