Base de données de recherche des TNO

chercheur principal: Low, Mike
Année(s) de permis: 2024 2023 2021 2019
Résumé: 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 ...

chercheur principal: Evans, Marlene S.
Année(s) de permis: 2022 2021
Résumé: 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 ...

chercheur principal: Low, George
Année(s) de permis: 2021 2019 2018 2017
Résumé: This licence has been issued for the scientific research application No.4573. 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...

chercheur principal: Evans, Marlene S.
Année(s) de permis: 2023 2022 2017 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005
Résumé: 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...

chercheur principal: Low, George
Année(s) de permis: 2016 2015 2014 2012 2011
Résumé: The objectives of this project are: 1) to determine through which lakes are important as food sources in four Dehcho communities and which fish species are used for human food from these lakes; 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 in the studies by ...

chercheur principal: Swanson, Heidi
Année(s) de permis: 2018 2017 2016 2016 2015 2014 2013
Résumé: The objectives of this research project are to: 1) determine why fish mercury levels vary among lakes in the Dehcho region; 2) identify best predictors of fish mercury levels; and, 3) determine which fish have the lowest levels of mercury and highest levels of micro-nutrients and fatty acids. The methods for this project include two parts, first is the collection of food web data from each lake...

chercheur principal: Stern, Gary
Année(s) de permis: 2012
Résumé: The objective of this study is to collect fish from lakes and tributary rivers of lakes under fish (mercury) consumption advisories and compare with older data from government if available (DFO, Environment Canada), and to collect and analyse sediment cores from these lakes to see how lake ecosystem changes relate to fish mercury levels. There are two main methods involved in this work. For fis...

chercheur principal: Hatfield, C.T.
Année(s) de permis: 1976
Résumé: To carry out a fresh water fisheries study, primarily in search for spawining areas. Some fish might be tested for parasites and mercury....