NWT RESEARCH DATABASE

Principal Investigator: Olefeldt, David
Licensed Year(s): 2024
Summary: This licence has been issued for the scientific research application No. 5892. Objective summary: To assess the effect of wildfires on changes in water quality in the Dehcho and South Slave region, which are affected by runoff from peatlands (containing e.g., organics, nutrients, and mercury/methylmercury), which are already experiencing increased permafrost thaw due to climate change. Synop...

Principal Investigator: Olefeldt, David
Licensed Year(s): 2023 2022 2021
Summary: This licence has been issued for the scientific research application No.5448. This project proposes to monitor wetlands, streams, rivers, and lakes in the Dehcho region, with a focus on understanding current and future trends in aquatic mercury and methylmercury. The region has vast stores of mercury accumulated in organic wetland soils, and there is a risk that disturbances such as permafrost ...

Principal Investigator: Low, Mike
Licensed Year(s): 2023 2021 2019
Summary: This licence has been issued for the scientific research application No.5348. The objectives of this research project are: 1) to determine why fish mercury levels vary among lakes in the Dehcho region; 2) to identify best predictors of fish mercury levels; 3) to determine with fish have the lowest levels of mercury and the highest levels of nutrients; and, 4) to collect data on parameters that ...

Principal Investigator: Droppo, Ian
Licensed Year(s): 2020
Summary: This licence has been issued for the scientific research application No.4759. The overall objective of this research is to assess the permafrost thaw slump erosion and transport of its sediment by rainfall/runoff to depositional zones within Arctic tundra lakes. To achieve this, we will link a rainfall simulator with an annular flume (to simulate lake currents) located in the Hydro-ecology Moni...

Principal Investigator: Somers, Gila L
Licensed Year(s): 2018 2017 2016 2015 2014 2013
Summary: Water quality monitoring equipment has been deployed at over 42 sites across the NWT to address community concerns. Community members were trained to use the following equipment: •YSI sondes: sit in the water and measure basic water quality parameters every 2 hours for up to 3 months. Analysis undertaken at ENR. •Grab water samples: measure basic parameters, nutrients, physicals, major ions,...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2023 2022 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
Summary: This study is continuing to investigate whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake which the research team have been studying since the early 1990s. The team plan to collect lake trout from Great Slave Lake (Hay River area and Lutsel K’e area). The team also plan to collect burbot from the Lutsel K’e and Fort Resolution areas of Gr...

Principal Investigator: Dewar, David J
Licensed Year(s): 2012
Summary: The Objectives of this research project are to: 1.) gather information in 2012 on the small-bodied and Young of Year fish in Bluefish Lake that may be available for monitoring as well as determine the most suitable methods and locations for their capture in order to finalize the proposed mercury study design, and 2.) complete monitoring between 2013 and 2015 as described in the finalized mercury ...