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10 record(s) found with the tag "fish health" (multi-year projects are grouped):
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Temporal trend studies of trace metals and halogenated organic contaminants (HOCs) including new and emerging persistent compounds, in Mackenzie River burbot, Fort Good Hope, NWT (2024-2025)
Principal Investigator: Stern, Gary
Licensed Year(s): 2024
Summary: This licence has been issued for the scientific research application No. 5906. Short-term goals are to determine if burbot contaminant concentrations: • Are above or below Health Canada guidelines (i.e. <0.5 ppm mercury per gram fish). Annual data will be provided to NWT Health and Social Services for evaluation; • Are associated with dietary indicators, i.e. stable isotope ratio data (15N, 1...
Licensed Year(s): 2024
Summary: This licence has been issued for the scientific research application No. 5906. Short-term goals are to determine if burbot contaminant concentrations: • Are above or below Health Canada guidelines (i.e. <0.5 ppm mercury per gram fish). Annual data will be provided to NWT Health and Social Services for evaluation; • Are associated with dietary indicators, i.e. stable isotope ratio data (15N, 1...
Further Examination of the Bio- Magnification of Mercury within Fish Species and watersheds of the Deh Cho and Their Varying Levels Among Lakes
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 ...
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 ...
Contaminants (PAHs, mercury) in the Mackenzie River and fish health assessments: implementation of classic and new molecular screening tools for environmental monitoring and stressor assessment
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2022 2021
Summary: This licence has been issued for the scientific research application No.5333. This study will determine the concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in small-bodied fish in the Norman Wells/Imperial area near nature oil seeps and industrial activities with comparisons to be made with upstream (Tulita area) and downstream (Fort Good Hope) areas. The research team will also asses...
Licensed Year(s): 2022 2021
Summary: This licence has been issued for the scientific research application No.5333. This study will determine the concentrations of Polycyclic Aromatic Hydrocarbons (PAHs) in small-bodied fish in the Norman Wells/Imperial area near nature oil seeps and industrial activities with comparisons to be made with upstream (Tulita area) and downstream (Fort Good Hope) areas. The research team will also asses...
Spatial and long-term trends in persistent organic contaminants and metals in fish from the Northwest Territories
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 ...
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 ...
Metal levels in large-bodied fishes near communities along the Mackenzie River compared to impacted lakes near Yellowknife, NWT
Principal Investigator: Somers, Gila L
Licensed Year(s): 2016
Summary: The objectives of this project are to collect fish tissue samples from species of subsistence importance to (1) establish a long-term community monitoring program for contaminants in fish within the Gwich’in Settlement Area; and (2) to monitor potential spatial and temporal trends in metal concentrations (including mercury) in fish tissues within the Mackenzie River watershed and the Yellowknife r...
Licensed Year(s): 2016
Summary: The objectives of this project are to collect fish tissue samples from species of subsistence importance to (1) establish a long-term community monitoring program for contaminants in fish within the Gwich’in Settlement Area; and (2) to monitor potential spatial and temporal trends in metal concentrations (including mercury) in fish tissues within the Mackenzie River watershed and the Yellowknife r...
Updating data on mercury levels in food fish species in lakes used by Deh Cho communities
Principal Investigator: Low, George
Licensed Year(s): 2016 2015 2014 2012 2011
Summary: The objectives of this project are: 1) To determine which lakes are important as food sources in four Dehcho communities and which fish species are used for human food from these lakes using Traditional Knowledge. 2) To train community monitors to collect fish and other samples according to Environment Canada and Department of Fisheries and Oceans protocol. 3) To involve local school children i...
Licensed Year(s): 2016 2015 2014 2012 2011
Summary: The objectives of this project are: 1) To determine which lakes are important as food sources in four Dehcho communities and which fish species are used for human food from these lakes using Traditional Knowledge. 2) To train community monitors to collect fish and other samples according to Environment Canada and Department of Fisheries and Oceans protocol. 3) To involve local school children i...
Monitoring of mercury, flame retardants and other chemicals in lake trout and cisco from Great Bear Lake
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 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...
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 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...
Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot from the Northwest Territories
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 2023 2022 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
Summary: The Northern Contaminants Program (NCP) calls for monitoring of contaminant trends. Lake trout are the fish most commonly consumed and harvested. Studies are showing that contaminants such as PCBs and DDT are declining in lake trout in Great Slave Lake. Burbot liver will also be examined as part of this study because contaminant levels can be high in this organ, and contaminant levels are not decl...
Licensed Year(s): 2023 2022 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
Summary: The Northern Contaminants Program (NCP) calls for monitoring of contaminant trends. Lake trout are the fish most commonly consumed and harvested. Studies are showing that contaminants such as PCBs and DDT are declining in lake trout in Great Slave Lake. Burbot liver will also be examined as part of this study because contaminant levels can be high in this organ, and contaminant levels are not decl...
Investigating the Importance of Water Chemistry on Mercury Concentration in Fish from Mackenzie River Basin Lakes
Principal Investigator: Stephens, Glen
Licensed Year(s): 1998
Summary: The objective of the work is to characterize the water chemistry of lakes with reported elevated concentrations of mercury in fish from the Mackenzie River Valley, which were sampled as part of the Department of Fisheries & Oceans (DFO) fisheries management plan. This would help to establish if there is any relationship between basic lake water chemistry and mercury levels in fish which could be u...
Licensed Year(s): 1998
Summary: The objective of the work is to characterize the water chemistry of lakes with reported elevated concentrations of mercury in fish from the Mackenzie River Valley, which were sampled as part of the Department of Fisheries & Oceans (DFO) fisheries management plan. This would help to establish if there is any relationship between basic lake water chemistry and mercury levels in fish which could be u...
Mercury Concentration of Two Lakes on the Yellowknife River System Affected by the Bluefish Hydrodam
Principal Investigator: Puznicki, Wayne
Licensed Year(s): 1997
Summary: The objective of the study is to assess the concentration of mercury in fish, water and sediment in Bluefish and Duncan Lakes; to provide information to the Yellowknives Dene First Nation to make decisions relating to the use of fish and water from these lakes; and to correlate traditional knowledge with scientific data. Bluefish & Duncan Lakes are about 50 km to the northeast of Yellowknife. Tr...
Licensed Year(s): 1997
Summary: The objective of the study is to assess the concentration of mercury in fish, water and sediment in Bluefish and Duncan Lakes; to provide information to the Yellowknives Dene First Nation to make decisions relating to the use of fish and water from these lakes; and to correlate traditional knowledge with scientific data. Bluefish & Duncan Lakes are about 50 km to the northeast of Yellowknife. Tr...
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