NWT RESEARCH DATABASE

Principal Investigator: Scrimgeour, Garry J
Licensed Year(s): 2009 2008 2007
Summary: The objectives of this research are two-fold: 1) Identify an ecological indicator that can monitor changes in loadings of metals in the South Nahanni Watershed. This work is scheduled for completion in 2007-2008. 2) Establish a monitoring program that can quantify the cumulative effects of mining activities on the health of streams in the South Nahanni Watershed. This work is scheduled for compl...

Principal Investigator: Dube, Monique G
Licensed Year(s): 2006
Summary: The objectives of this research are three-fold: 1) to determine the natural variability of benthic invertebrate and fish communities at sites free of human impact; 2) to determine any changes in these due to mining activity relevant to regional variability; and 3) to establish dose response relationships and critical thresholds for stressors including mine effluent, ammonia, a hydrocarbon indicato...

Principal Investigator: Muggli, Deborah
Licensed Year(s): 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003
Summary: The main objective of the field work to be performed in 2005 is to determine if the EKATI mine is having an effect on its surrounding aquatic environment and to provide baseline data for the area. Transportation to and from site will be provided by BHP Billiton. The primary form of transportation of personnel and equipment will be via regularly scheduled Canadian North flights to site. While ...

Principal Investigator: Dyke, Larry
Licensed Year(s): 1998 1997
Summary: Field work this year will be devoted to 1) determining the maximum extent of potassium chloride migration from sumps examined in 1997, 2) examine the Mallik L-38 sump constructed in 1972 as one of the oldest sumps in the Delta, 3) examine the sumps in Parsons Lake area where topographic relief has added the potential for salt migration due to groundwater flow. Sumps along Kumak Channel, near the m...

Principal Investigator: Falkner, Kelly K.
Licensed Year(s): 1994
Summary: The researchers will be tracking the fate of Mackenzie River waters through the Delta and into the Arctic Ocean by using natural geochemical markers. Water samples will be collected by drilling through the ice at 50 locations along the main channel of the river and out over the shelf. This information is important for understanding the circulation of Arctic Ocean waters, the processes of global ...

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....

Principal Investigator: Gould, William
Licensed Year(s): 1994 1993 1992 1991 1990
Summary: Project 1: Small samples of lichens will be collected from approximately 20 sites located along the Hood River and analyzed for contaminants. Lichens are good indicators of the types of air-borne contaminants that have been carried north to the arctic since they absorb their nutrients from the air. Project 2: The researcher will examine plant communities along the Hood River in order to study th...

Principal Investigator: Gregor, Dennis J.
Licensed Year(s): 1993
Summary: Atmospheric contaminants that accumulate in the snow are released during a very short time in the spring when the snow melts and washes out through rivers and lakes into the Arctic Ocean. Contaminants can be bound to substrates, consumed by organisms or transformed so that not all contaminants deposited in the snow reach the Arctic Ocean. In this on-going study, contaminant levels and distributi...

Principal Investigator: Edwards, Thomas W.D.
Licensed Year(s): 1993
Summary: The proposed research is part of an ongoing program of hydrological studies in the north aimed at improving our understanding of how water cycles through natural drainage systems. This year, I will examine water evaporation on lakes and ponds that are located on mine sites: results from this research will aid in the design of better tailings impoundments containing mine wastes/contaminants....

Principal Investigator: Gregor, Dennis J.
Licensed Year(s): 1992 1991 1991 1990
Summary: Snow samples will be collected from approximately 30 sites across the NWT and Yukon in the spring of the year. This annual snow pack sample will allow an estimate of the quantity of organic contaminants that have been deposited over the winter season. To better understand the fate of these contaminants in the High Arctic, the researchers will undertake an intensive small basin study on Cornwallis ...