NWT RESEARCH DATABASE

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2022 2021
Summary: This licence has been issued for the scientific research application No.5058. The research team will conduct a study of Polycyclic aromatic hydrocarbons (PAHs) and mercury in large-bodied fish (primarily burbot, whitefish), small-bodied fish (trout perch, slimy sculpins, lake chub) to assess cumulative impacts of anthropogenic and natural disturbances on fish health with a focus on the Mackenzi...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2022 2021
Summary: This licence has been issued for the scientific research application No.5031. The study is continuing to investigate whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake which we have been studying since the early 1990s. The research team plans to collect lake trout from Great Slave Lake (Hay River area and Lutsel K’e area and also plans ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2020
Summary: This licence has been issued for the scientific research application No.4675. This study is designed to find out whether contaminant levels are changing in fish (lake trout and cisco) in Great Bear Lake. Of particular interest is mercury. It complements ongoing fish population studies being conducted by the Department of Fisheries and Oceans on Great Bear Lake and contributes to Deline's resear...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2019
Summary: This licence has been issued for the scientific research application No.4533. This study will investigate whether contaminant levels are changing in fish in Great Slave Lake which the research team have been studying since the early 1990s. The team plan to collect lake trout from the Hay River and Lutsel K’e areas. The team will also collect burbot from the Lutsel K’e and Fort Resolution areas ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2018 2016
Summary: This study is continuing to investigate whether contaminant levels are changing in fish in Great Slave Lake which the team have been studying since the early 1990s. The research team will collect lake trout from the Hay River and Lutsel K’e areas. The team will also plan to collect burbot from the Lutsel K’e and Fort Resolution areas of Great Slave Lake, and northern pike from the Fort Resolution ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2018
Summary: The objectives of this research project are to collect sediment cores from up to six sites in Great Bear Lake to investigate the temporal record of diatom and lake productivity and the deposition of mercury and other metals; to investigate spatial gradients in lake productivity as influenced by station depth, distance from shore, and river influences; and to continue to investigate mercury levels ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2023 2022 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
Summary: The objectives of this project are to: 1) continue to investigate trends in mercury, metals and persistent organic contaminants (POCs) in lake trout harvested from two locations (West Basin near Hay River, East Arm at Lutsel K’e) and burbot harvested from one location (West Basin at Fort Resolution) in Great Slave Lake in 2017 to further extend the long-term (1993-2015: POCs, 1993-2016 mercury a...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2016 2015 2014 2013
Summary: This study is designed to find out whether contaminant levels are changing in fish (lake trout and cisco) in Great Bear Lake. The research team require fall-caught fish for this study. Twenty whole lake trout and 20 whole cisco of a range of sizes are required from Great Bear Lake. The fish will be frozen immediately after capture and shipped to Environment Canada-Saskatoon. The fish will then ...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2014
Summary: The objectives of this research project are to collect a series of sediment cores in the West Basin of Great Slave Lake to investigate time trends in various chemicals of interest including mercury, mercury isotopes and persistent organic contaminants. In late-March 2014, the research team will collect sediment cores at 3-4 locations on Great Slave Lake (West Basin, offshore Slave River). An 8...

Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2010 2009
Summary: This licence is being issued for the scientific research application no. 991. The goal of this research is to conduct sediments coring and food web studies to better understand the factors affecting long-term contaminant trends in predatory fish in Great Slave Lake. For several years the researchers have been conducting studies to find out if contaminant levels are changing in lake trout and...