13 record(s) found for principle investigator "Evans, Marlene" (multi-year projects are grouped):
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Sediment core studies in Great Slave Lake
Principal Investigator: Evans, Marlene
Licenced 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...


Monitoring of mercury, flame retardants and other chemicals in lake trout and cisco from Great Bear Lake
Principal Investigator: Evans, Marlene
Licenced 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 a batch of spring-caught fish and a batch of summer/fall-caught fish for this study. Twenty whole lake trout and 20 whole cisco of a range of sizes are required from each collection period. The fish will be frozen immediately after capture and s...


Enhanced Investigations of the Factors affecting Long-term Contaminant Trends in Predatory Fish in Great Slave Lake, the Northwest Territories
Principal Investigator: Evans, Marlene
Licenced 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...


Biological Studies of Waters Along the Proposed Mackenzie Gas Project Pipeline Route - Deh Cho and South Slave Settlement Regions
Principal Investigator: Evans, Marlene
Licenced Year(s): 2008
Summary: This licence is issued for the scientific research application #861. This study is designed to examine streams possibly affected by the proposed Mackenzie Gas Project pipeline and streams that can serve as future control/reference sites. The researcher will measure the following: nutrients and metals in stream water, stream water quality (DO, pH, conductivity, etc.), and aquatic invertebrate ab...


Biological Studies of Waters Along the Proposed Mackenzie Gas Project Pipeline Route - Inuvialuit Settlement Region
Principal Investigator: Evans, Marlene
Licenced Year(s): 2009 2008 2007 2006
Summary: This license has been issued for the scientific research application #837. This study is designed to examine lakes possibly affected by the proposed Mackenzie Gas Project pipeline, and lakes that can serve as future control/reference sites. The researchers will measure the following: nutrients and metals in lake water and sediments, lake water quality (DO, pH, conductivity, etc.), and benthic i...


Biological Studies of Waters Along the Proposed Mackenzie Gas Project Pipeline Route - Sahtu Settlement Region
Principal Investigator: Evans, Marlene
Licenced Year(s): 2008
Summary: The research will examine streams possibly affected by the proposed Mackenzie Gas Project pipeline, and streams that can serve as future control/reference sites. Measurements of stream nutrients, metals in stream water, water quality (DO, pH, conductivity, etc.), stream characteristics (flow, width, depth, etc.) and aquatic invertebrate abundance/species composition will be completed. Possible t...


Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot from the Northwest Territories
Principal Investigator: Evans, Marlene
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Summary: This research will examine changing contaminant levels in lake trout and burbot in the Great Slave Lake, Trout Lake and Stark Lake. Lake trout will be collected from Great Slave Lake (Lutsel K'e and Hay River), Trout Lake and Stark Lake, and burbot from Great Slave Lake (Fort Resolution). These fish will be captured using gill nets or by angling. Length, age, weight, lipid (fat) content, and se...


Temporal trends and spatial variations in persistent organic pollutants and metals in sea-run char from the Canadian Arctic
Principal Investigator: Evans, Marlene
Licenced Year(s): 2007 2006
Summary: This study is designed to determine what the levels of contaminants are in char when these fish return from feeding in the ocean in the summer. This is the fourth year of a study investigating the contaminant levels in sea-run Arctic char as they return from feeding in the ocean. The reason this study is being conducted is to provide communities with more information on the chemical levels in t...


Biological Studies of Waters Along the Proposed Mackenzie Gas Pipeline Route - Gwich'in Settlement Region
Principal Investigator: Evans, Marlene
Licenced Year(s): 2009 2008 2007 2006
Summary: This study is designed to fill science gaps in Environment Canada’s understanding of the structure and functioning of the aquatic environment potentially impacted by various aspects of the Mackenzie Gas Project. While data collected during the Environmental Impact Assessment studies (carried out in conjunction with the proposed construction and operation of the Mackenzie Gas Pipeline) are relative...


Aquatic Studies along the Mackenzie River and its Tributaries
Principal Investigator: Evans, Marlene
Licenced Year(s): 2005
Summary: This study is designed to investigate various measures of small fish health at a number of locations along the Mackenzie River. The researchers want to find out if small fish health is different near oil seepages and the islands at Norman Wells than in other parts of the river. Also, the researchers will investigate fish and benthic invertebrate abundance and species composition at selected strea...


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