Browsing Biology by Title
Now showing items 21-40 of 597
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Antioxidant Defence Response in Non-Target Fishes Following Pharmaceutical Wastewater Effluent Exposure
(University of Waterloo, 2022-05-05)The Grand River watershed extends throughout the majority of Southern Ontario with its final outlet at Lake Erie and accommodates thirty wastewater treatment plants (WWTP) with varying types and degrees of treatment. ... -
Antiviral responses of Xela DS2 and Xela VS2, two newly established Xenopus laevis skin epithelial-like cell lines, to viral dsRNA and Frog Virus 3
(University of Waterloo, 2019-09-27)There is a current decline in amphibian populations, wherein the emerging pathogen Frog Virus 3 (FV3) is believed to be a proximate cause. The conservation of frog species is thus important as population declines would ... -
The Apparent Partitioning Behaviour of SARS-CoV-2 RNA in Municipal Wastewater
(University of Waterloo, 2023-04-10)The use of wastewater-based surveillance (WBS) has experienced rapid expansion and development since the onset of the coronavirus disease (COVID-19) pandemic that is caused by the virus severe acute respiratory syndrome ... -
Application and assessment of multi-wavelength measurements of variable chlorophyll a fluorescence for analysis of irradiance stress, physiological state and community composition in freshwater phytoplankton
(University of Waterloo, 2018-04-24)Phytoplankton are a diverse group of organisms of fundamental importance in aquatic ecosystems. Exposure to high levels of photosynthetically active and ultraviolet radiation (PAR and UVR) is unavoidable for most phytoplankton ... -
Application of artificial substrate samplers to assess enrichment of metals of concern by river floodwaters to lakes across the Peace-Athabasca Delta
(University of Waterloo, 2021-05-19)Potential for downstream delivery of contaminants via Athabasca River floodwaters to lakes of the Peace-Athabasca Delta (PAD), northeastern Alberta (58.6°N, 111.8°W), has raised local to international concern. Prior ... -
Application of Different Measures of Bioavailability at Contaminated Sites
(University of Waterloo, 2009-05-14)Contaminated areas resulting from anthropogenic activities have, for the most part, concentrations of contaminants that exceed Tier 1 standards below which the risk is considered acceptable. However, contaminants that have ... -
Application of Environmental Metabolomics for Assessment of Aquatic Invertebrate Sensitivity to Naphthenic Acids
(University of Waterloo, 2023-12-14)Naphthenic acids (NAs) are a class of chemicals found in oil sands process waters (OSPW) from the extraction of bitumen from surface mined oil sand. In Alberta, Canada, OSPW is currently stored indefinitely in tailing ponds ... -
Aquatic macroinvertebrate communities and diversity patterns in the Northern Prairie Pothole Region
(University of Waterloo, 2017-04-26)The Northern Prairie Pothole Region (NPPR) of Alberta, Canada contains numerous shallow marshes that serve as important habitat for wildlife and provide many essential ecosystem services. Many of these pothole wetlands ... -
Assessing reasons for changes in the condition of Deception Bay Arctic charr (Salvelinus alpinus)
(University of Waterloo, 2019-01-24)The Raglan Mine sport fishing program has collected biological fish data in Deception Bay, Nunavik, Québec, Canada since 1998 in collaboration with local committees, small scale sampling programs, and government agencies ... -
Assessing relations among multiple environmental gradients for shallow lakes in Old Crow Flats, Yukon, using hydrological, limnological and community-collaborative research approaches
(University of Waterloo, 2018-01-09)Shallow freshwater ecosystems are undergoing marked hydrological changes associated with a warming Arctic, which causes concern for remote northern communities that access these regions to maintain their traditional ... -
Assessing Taxonomic Issues with the Genera Anabaena, Aphanizomenon and Nostoc Using Morphology, 16S rRNA and efp genes
(University of Waterloo, 2009-01-08)Cyanobacteria are an ancient lineage of gram-negative photosynthetic prokaryotes that play an important role in the nitrogen cycle in terrestrial and aquatic systems. Widespread cyanobacterial blooms have prompted numerous ... -
Assessing the Sampling Design of the Community Aquatic Monitoring Program (CAMP)
(University of Waterloo, 2017-08-16)The Community Aquatic Monitoring Program (CAMP) is a community based monitoring program that involves local stakeholders to monitor estuaries and bays in the southern Gulf of St. Lawrence (sGSL). Implemented in 2003, CAMP ... -
Assessing the use of δ18O-PO4 analysis for tracing source inputs and the cycling of phosphorus: Applications to the Grand River
(University of Waterloo, 2014-05-01)The use of δ18O- PO4 analysis was assessed for the Grand River, a highly impacted river in Southern Ontario that receives inputs from 30 WWTPs. Significant nutrient inputs within the watershed have led to prolific aquatic ... -
Assessing the utility of passive sampling for building-scale SARS-CoV-2 wastewater-based surveillance to inform public health action
(University of Waterloo, 2023-12-21)Wastewater-based surveillance (WBS) is an effective public health tool that has been used to detect human viruses for decades. Most recently it has been applied to monitor SARS-CoV-2 RNA in municipal wastewater to track ... -
An assessment of genomic sequence restoration in Arabidopsis thaliana
(University of Waterloo, 2009-08-27)A fundamental tenet of classical Mendelian genetics is that allelic information is stably transmitted from parent to progeny. Work in our laboratory has revealed a novel exception to this law where Arabidopsis thaliana ... -
An Assessment of Hydro-ecological Changes at Two Closed-drainage Basins in the Peace-Athabasca Delta, Alberta, Canada
(University of Waterloo, 2006)Diatom analyses were carried out on sediment cores collected from two low-lying, closed-drainage basins (PAD 9 - 58º46. 46?N, 111º19. 48?W; PAD 12 - 58º57. 29?, 111º19. 74?) in the Peace sector of the Peace-Athabasca ... -
Assessment of hydroecological changes at the Slave River Delta, NWT, using diatoms in seasonal, inter-annual and paleolimnological experiments
(University of Waterloo, 2007-09-27)Relationships between hydrology, limnology and ecology are analyzed in a comprehensive study of water bodies in the Slave River Delta, Northwest Territories, Canada, at a variety of temporal and spatial scales, including ... -
An Assessment of Pyridoxine as a Biological Response Modifier During Colon Carcinogenesis
(University of Waterloo, 2007-10-05)The main objective of this proposal was to investigate the effect of vitamin B6 on colon carcinogenesis in vivo. Two in vivo studies were conducted to determine the role of vitamin B6 as a biological modifier of colon ... -
Assessment of remote Patagonian riverine fish using environmental DNA
(University of Waterloo, 2022-04-26)Freshwater systems and fish communities face many anthropogenic threats such as climate change, pollution, and invasive species, causing a rapid loss of biodiversity. To protect freshwater fish basic knowledge of their ... -
Assessment of the cell cycle proteins Cdc7 and PCNA as markers of colon carcinogenesis in obese and lean rats
(University of Waterloo, 2009-11-23)Obesity increases the risk of colon cancer as well as the expression of many cancer markers, ostensibly due to the interaction between insulin resistance and adipocyte production of hormones, mitogens and cytokines which ...