Spatial and long-term trends in persistent organic contaminants and metals in lake trout and burbot from the Northwest Territories

Regions: South Slave Region

Tags: contaminants, fish, burbot, mercury, lake trout, northern pike, methylmercury

Principal Investigator: Evans, Marlene (38)
Licence Number: 15530
Organization: Environment Canada
Licenced Year(s): 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004
Issued: Aug 29, 2014
Project Team: Derek Muir (Environment Canada), Rosy Bjornson (Deninu Kue First Nation), Mike Tollis (Lutsel K'e Dene First Nation), Shawn Buckley (Hay River)

Objective(s): To continue 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.

Project Description: This study is continuing to investigate whether contaminant levels are changing in fish in the Northwest Territories with a focus on Great Slave Lake which the research team have been studying since the early 1990s. The team plan to collect lake trout from Great Slave Lake (Hay River area and Lutsel K’e area). The team also plan to collect burbot from the Lutsel K’e and Fort Resolution areas of Great Slave Lake, and northern pike from the Fort Resolution area of Great Slave Lake.

- 20 burbot and 20 northern pike will be collected from the West Basin of Great Slave Lake (near Slave River) by community members from Fort Resolution during their normal subsistence fishing activities (gill net or angling).
- 20 lake trout will be collected from the West Basin of Great Slave Lake by the Hay River commercial fishery (gill net).
- 20 lake trout and 20 burbot will be collected from the East Arm of Great Slave Lake by community members from Lutsel K’e during their normal subsistence fishing activities (gill net or angling).

Communities will be kept informed of the progress of the study. The Principal Investigator may visit the communities to discuss the study and present results from previous years. Results will also be disseminated through reports and possible community visits.

The fieldwork for this study will be conducted from August 25, 2014 to December 31, 2014.