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
20222021 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):2024
2023
20212019 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:Low, Mike Licensed Year(s):
2021
201920182017 Summary:
This licence has been issued for the scientific research application No.4844.
The objectives of this study are to:
1) establish a population estimate of walleye in Sanguez Lake;
2) establish an additional estimate of fish mercury concentrations in walleye and pike. In 2013, mean mercury concentration in walleye was 0.71 mg/kg wet weight, and in pike was 1.09 mg/kg wet weight;
3) reduce the n...
Principal Investigator:Laird, Brian D Licensed Year(s):
2018
2016 Summary:
The overall objective of this research is to promote country foods in the Dehcho Region in a way that balances contaminant risks and nutrient benefits in order to maximize nutrient status while minimizing mercury exposure. The research team will work towards this objective through the implementation of research that will consist of the biomonitoring study to evaluate country food usage patterns, c...
Principal Investigator:Laird, Brian D Licensed Year(s):
2017
20152014 Summary:
The overall objective of this research is to promote country foods in the Dehcho Region in a way that balances contaminant risks and nutrient benefits in order to maximize nutrient status while minimizing mercury exposure. The research team will work towards this objective through the implementation of research that will consist of the biomonitoring study to evaluate country food usage patterns, c...
Principal Investigator:Laird, Brian D Licensed Year(s):
2016
2015 Summary:
The overall objective of this research is to promote country foods in the Dehcho Region in a way that balances contaminant risks and nutrient benefits in order to maximize nutrient status while minimizing mercury exposure. The research team will work towards this objective through the implementation of research that will consist of the biomonitoring study to evaluate country food usage patterns, c...
Principal Investigator:Evans, Marlene S. Licensed Year(s):
2003
1998 Summary:
This study is based on earlier research conducted by the Department of Fisheries and Oceans which found that fish in many lakes in the Mackenzie River Basin had high mercury concentrations. This study examines the environment in which the fish live in o...