8 record(s) found with the tag "physical sciences" (multi-year projects are grouped):
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Nutrient and contaminant status in the wetlands of the Slave River Delta
Principal Investigator: Doig, Lorne
Licensed Year(s): 2021
Summary: This licence has been issued for the scientific research application No.4988. The objectives of this project are to determine: 1) From the outer Slave River Delta (SRD) (river-water dominated) to the apex of the SRD (runoff dominated), what the current status of nutrients and contaminants in SRD wetland ecosystems are; 2) How trace elements (e.g., mercury) move through SRD wetland food webs; an...


Bioavailability and toxicity of heavy metals in the Slave River Delta, NWT
Principal Investigator: Stone, Michael
Licensed Year(s): 2004
Summary: Currently, there is no information about the bioavailability and toxicity of metals in the Slave River delta. The goal of this research is to examine metal cycling pathways in the delta and to assess the role of aquatic vegetation for metal accumulation...


Investigation of factors affecting high mercury levels in fish in lakes in the Mackenzie River Basin (2002-2003)
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2003 1998
Summary: This study is based on earlier research conducted by the Department of Fisheries and Oceans which found that fish in many lakes in the Mackenzie River Basin had high mercury concentrations. This study examines the environment in which the fish live in o...


I. Hydrologic and hydraulic aspects of northern hydrocarbon development; II. Sediment-related aspects of northern hydrocarbon development.
Principal Investigator: Jasper, Jesse
Licensed Year(s): 1993
Summary: The researchers will work in collaboration with other scientists to study water and sediment characteristics at certain Inland Water Directorate sites in the Mackenzie Delta. This study will be useful for evaluating impacts of hydrocarbon development as well as delta flooding on water flow, wildlife and vegetation in the delta. In addition, contaminants in water and sediments will be measured....


An Assessment of the Environmental Impacts on Strathcona Sound from the Nanisivik Mine
Principal Investigator: d'Entremont, Andre
Licensed Year(s): 1992
Summary: The researcher will assess the extent of trace metal migration in Strathcona Sound, to determine if this contamination could result in any toxic effects on biota, and to assess the effectiveness of environmental monitoring methods in the high Arctic....


Study of Contaminants and Bio-indicators of Environmental Change in Arctic Lakes
Principal Investigator: Smol, John P
Licensed Year(s): 1994 1993 1992
Summary: The Researchers will sample lakewater and lake sediments from several study sites near Resolute and in the High Arctic near Alert. At each lake they will analyze the water chemistry and collect lake muds. The lake muds contain a historical record of past pollution (black carbon particles) as well as biological indicators (for example, diatom algae) of environmental change....


Influence of the Slave River on Great Slave Lake
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 1992
Summary: The Researchers will collect a series of sediment and water samples. These will be analyzed for plant nutrients, concentration of microscopic plant cells, bacteria, suspended solids, dissolved oxygen and organic contaminants. Microscopic animals will also be netted. They will determine the abundance and composition of the animals and conduct experiments to measure their feeding rates and fat cont...


Licence #2447
Principal Investigator: Stich, H.F.
Licensed Year(s): 1979
Summary: To collect samples of sediments, muds and small organisms for subsequent laboratory analysis to determine the geographic distribution and occurrence of cancer causing substances in Arctic waters. The purpose of the study is to find out if there is a possible health hazard to animals and local populations....


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