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 18 of 18 for “"Zebra mussel"”.
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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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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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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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CYTO-GENOTOXIC EFFECTS OF SOME PHARMACEUTICAL AND PERSONAL CARE PRODUCTS (PPCPS) ON THE FRESHWATER BIVALVE ZEBRA MUSSEL (DREISSENA POLYMORPHA)
… DCF – ibuprofen; IBU) on the freshwater bivalve zebra mussel (Dreissena polymorpha). This mussel was chosen as biological model because the invertebrates constitute more the 90% of living species, they play an important role in freshwater ecosystems and are particularly susceptible to …
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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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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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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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Long-term spatiotemporal water quality and phytoplankton dynamics in Severn Sound, Ontario: a delisted great lakes area of concern
… potential influences from invasive dreissenid mussels. Although an important driver of water quality changes, water temperature change was variable during the study, likely due to site-specific differences and inherent data variability. Generalized Additive Mixed Models showed decreases in …
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Mercury Transport and Fluxes in the Lake Ontario Basin
… from the river, and to assess the impacts of zebra mussel metabolism on Hg<sup>0</sup> volatilization. Elemental Hg volatilization was estimated at 1.3 ng m<sup>-2</sup> hr<sup>-1</sup> for the field season, and was positively correlated to incident solar radiation. It appears that the …
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Seasonal and lunar patterns of peach blossom jellyfish (Craspedacusta sowerbii) in Michigan
… sites with reports of C. sowerbii, particularly zebra mussel, purple loosestrife, and Eurasian watermilfoil, suggesting overlapping dispersal pathways or habitat preference. The ecological niche model showed fair predictive ability and identified high habitat suitability in the southern lower …
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Waterfront spectacular
… the sea lamprey (Petromyzon marinus) and zebra mussel (Dreissena polymorpha) and asserts that making work visible, in public, is spectacular—as noted, “a visible deviation from the norm intended to provoke a response.” In conclusion, this thesis discusses how instrumentalizing spectacle in …
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Evaluating recovery in aquatic production in the Bay of Quinte: A perspective based on changes in sedimentary diatom assemblages
… contaminants, invasive species like dreissenid mussels, and in recent years the added stressor of climate change. The Bay of Quinte is one of the most well studied regions in Canada with over 50 years of monitoring data. Using a paleolimnological approach, I tracked changes in the diatom …
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The Influence of Metacommunity Connectivity and Invasive Species on Diversity and Ecosystem Properties: Invasion, Predation by Native Species, and Genetic Diversity of Propagules
… community and ecosystem responses to zebra mussel invasion in 18 reservoirs spanning two natural metacommunities with differing levels of hydrologic and overland connectivity in Texas. Though such an observational approach provides unique insights into invader impacts, it also limits …
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Modelling and empirical approaches for predicting the invasiveness of alien species.
… resistance to the Ponto-Caspian invader zebra mussel Dreissena polymorpha has been minimal in England, and this was likely to contribute to its invasive success. In conclusion, these results suggest that a combination of modelling and empirical approaches for predicting the outcomes of …
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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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The Wandering Mussels: Analyzing the Ecological Impact of Dreissenid Mollusks Across Spatial and Temporal Scales in Eastern Ontario Using Environmental DNA
… the ecological consequences of dreissenid mussel invasions using environmental DNA (eDNA). Temporally, I tracked quantitative dynamics via qPCR and ddPCR on bloom forming cyanobacterial species and toxin producing genes using high-resolution sedimentary eDNA chronologies. Reinforced by …