Browsing Biology by Title
Now showing items 154-173 of 599
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Development and application of plant macrofossils for paleolimnological reconstructions in the Slave River Delta, N.W.T.
(University of Waterloo, 2007-08-29)This thesis combines detailed analyses of living plant communities with paleolimnological methods to develop the use of plant macrofossils as an effective tool to track hydroecological changes in ponds of the Slave River ... -
Development and Evaluation of a Periphytic Diatom Biomonitoring Platform of the Assessment of Cumulative Effects in Lakes of the Muskoka River Watershed, Ontario, Canada
(University of Waterloo, 2014-09-19)Anthropogenic stressors such as urban development, agricultural practices and industrial activities are a growing concern throughout the Muskoka River watershed of Ontario, Canada, because they can alter physical, chemical ... -
Development of an Assay System for the Determination of Transketolase and Transaldolase Activities in Hyperthermophilic Bacteria and Archaea
(University of Waterloo, 2012-03-01)Only a few hyperthermophilic archaea are found to have a complete nonoxidative stage of pentose phosphate pathway (NOPPP), which indicates that most archaeal hyperthermophiles are partially missing pentose metabolizing ... -
Development of an endothelial-like cell line from the brain of the American eel and its use to study the effects of selenium
(University of Waterloo, 2017-02-14)A cell line, eelB, has been developed in this thesis from the brain of the American eel, Anguilla rostrata (Lesueur), an endangered species and belonging to a group of fish that for unknown reasons appear to be in worldwide ... -
Development of Models for the Prediction of Short-term and Long-term Toxicity to Hyalella azteca from Separate Exposures to Nickel and Cadmium
(University of Waterloo, 2008-04-30)This study investigated whether principles of the Biotic Ligand Model (BLM), originally developed to predict acute metal toxicity to fish, may be applied to metal accumulation and toxicity in short-term and long-term ... -
Development of protein level cytokine assays and assessment of the impact of implanted Acoustic Telemetry Tags on the Rainbow Trout (Oncorhynchus mykiss) immune system
(University of Waterloo, 2023-04-06)Telemetry tags are a widely used technology for tracking animals that are difficult to observe in their natural environment. This technology has been increasingly used to monitor and study populations of high value salmonid ... -
Development of RTgutGC as a Tool for Fish Feed Development
(University of Waterloo, 2017-08-15)A rainbow trout intestinal epithelial cell line, RTgutGC, has been used in this thesis to investigate the effects of various stresses in aquaculture on the gastrointestinal (GI) tract and for identifying possible beneficial ... -
Development, Assessment and Application of Benthic Algal Biomonitoring Protocols for Canadian Waters
(University of Waterloo, 2014-01-24)Stressors such as residential and industrial development and climate warming are escalating in North America, which increases stress to aquatic ecosystems. In the face of this, monitoring biologists must continually improve ... -
Differential Gene Expression Analysis using Resampling
(University of Waterloo, 2024-05-09)The primary objective in high-throughput sequencing is to identify differentially expressed genes, which provides substantial information of gene expression and regulation. A persistent challenge in this field is the bias ... -
Discovering new viral lineages and estimating their abundance in wastewater
(University of Waterloo, 2022-09-27)Wastewater surveillance of SARS-CoV-2 has emerged as a critical tool for tracking the spread of COVID-19. In addition to estimating the relative case numbers using qPCR, SARS-CoV-2 genomic RNA can be extracted from wastewater ... -
Dissolved Oxygen Dynamics in the Dunnville Marsh on the Grand River, Ontario, Canada
(University of Waterloo, 2009-02-19)Dissolved oxygen (DO) is one of the most important environmental factors necessary to sustain aquatic life. The Southern Grand River is characterized with extensive marshes. This study focuses on the Dunnville Marsh in ... -
Distribution and Function of Soil Thaumarchaeota
(University of Waterloo, 2018-08-17)Despite the importance of ammonia-oxidizing archaea (AOA; Thaumarchaeota) to soil nitrification (Chapter 1), their biogeography in terrestrial environments and relative contributions to nitrification remain unclear. ... -
The distribution of Dreissena and other benthic invertebrates in Lake Erie, 2002.
(University of Waterloo, 2012-02-22)A lake-wide benthic survey of Lake Erie during summer 2002 indicated that Dreissena bugensis is the dominant dreissenid in Lake Erie, especially in the east basin where this species was found at every station but no Dreissena ... -
Distribution, diversity and antimicrobial resistance of Salmonella enterica isolated from urban and rural streams
(University of Waterloo, 2011-08-10)This study presents the spatial and temporal variability of Salmonella enterica in urban and rural streams in a model watershed (Grand River watershed, Ontario, Canada), and examines the antimicrobial resistance (AMR) and ... -
The diversity and composition of benthic macroinvertebrate assemblages in streams in the Mackenzie River system, Northwest Territories
(University of Waterloo, 2010-01-22)Impending natural resources development and concern about the effects of climate change have spurred increased efforts to study and monitor aquatic habitats in the Mackenzie River system. As part of Environment Canada’s ... -
Diversity of Viral Communities in a Northern Temperate Lake through Metagenomics
(University of Waterloo, 2023-04-05)Viruses in oceanic environments play pivotal roles in regulating nutrient transfer and increasing rates of carbon transport. They have also been implicated in the regulation of micro-organism community dynamics through ... -
Does intersex matter? A case study of rainbow darter in the Grand River
(University of Waterloo, 2016-12-21)Endocrine disrupting compounds (EDCs) are present in the environment and can have negative effects on the health of wildlife. Aquatic organisms residing near the outfalls of municipal wastewater effluent (MWWE) are chronically ... -
Domain II (S5-P) region in Lymnaea T-type calcium channels and its role in determining biophysical properties, ion selectivity and drug sensitivity
(University of Waterloo, 2014-05-27)Invertebrate T-type calcium channels cloned from the great pond snail, Lymnaea Stagnalis (LCav3) possess highly sodium permeant ion channel currents by means of alternative splicing of exon 12. Exon 12 is located on the ... -
Dreissenid Mussels and Large Lakes: Effects on Littoral Ecology
(University of Waterloo, 2010-10-28)Invasive organisms are one of the major threats to the ecological integrity of aquatic systems in the 21st century. Among the most notorious and important aquatic invasive organisms are the dreissenid mussels, Dreissena ... -
DsRNA-mediated antiviral immunity in fish cells: visualization, sensors, and innate immune responses
(University of Waterloo, 2018-06-15)The global aquaculture industry is a multibillion dollar business that is threatened by pathogens, including a wide array of aquatic viruses. Currently there are no antiviral treatments available to combat viral outbreaks, ...