Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot in Great Slave Lake/Temporal trends and spatial variations in persistent organic pollutants and metals in sea run char from the Canadian Arctic

Regions: Inuvialuit Settlement Region, South Slave Region

Tags: contaminants, fish sampling, fish health, burbot, lake trout, arctic char, nutrition, Great Slave Lake

Principal Investigator: Evans, Marlene S (39)
Licence Number: 13704
Organization: National Water Research Institute
Licenced Year(s): 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Issued: Jul 29, 2004
Project Team: Derek Muir

Objective(s): This study is looking at the contaminant levels in lake trout and burbot in Great Slave Lake and in arctic char after their return from feeding in the ocean. The West Basin of Great Slave Lake has been chosen because it receives contaminants from the Slave River and the air, and the East Arm has been chosen because fish in this area receive contaminants mostly from the air. Lake trout are most commonly consumed and harvested in this lake and turbot livers can contain high contaminant levels. Char have been chosen because Inuit are being advised to eat more char and less seal, beluga, and walrus in order to reduce the amount of contaminants they consume. This study will determine if contaminant levels in char are the same across the arctic, or higher in some regions than others. In addition, contaminant levels will be measured to see if they have gone up or down since the last measurements were made.